./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_fillercode_fillercodesize_normal_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-58.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 024fd0f7f784f62d28de40aae573edce10a68ac5b0624f441dc23a0b8d5d66c0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:54:16,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:54:16,117 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 07:54:16,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:54:16,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:54:16,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:54:16,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:54:16,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:54:16,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:54:16,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:54:16,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:54:16,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:54:16,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:54:16,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:54:16,165 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:54:16,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:54:16,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:54:16,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 07:54:16,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:54:16,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 07:54:16,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:54:16,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:54:16,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:54:16,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:54:16,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:54:16,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 07:54:16,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:54:16,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:54:16,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:54:16,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:54:16,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:54:16,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:54:16,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:54:16,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:54:16,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:54:16,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:54:16,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:54:16,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:54:16,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:54:16,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:54:16,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:54:16,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:54:16,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024fd0f7f784f62d28de40aae573edce10a68ac5b0624f441dc23a0b8d5d66c0 [2024-10-14 07:54:16,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:54:16,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:54:16,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:54:16,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:54:16,454 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:54:16,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-58.i [2024-10-14 07:54:17,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:54:18,129 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:54:18,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-58.i [2024-10-14 07:54:18,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26bfdd234/bdaff4e6d6cc4228bede9e2ff9b0cf8f/FLAG77c38676e [2024-10-14 07:54:18,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26bfdd234/bdaff4e6d6cc4228bede9e2ff9b0cf8f [2024-10-14 07:54:18,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:54:18,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:54:18,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:54:18,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:54:18,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:54:18,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aca0365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18, skipping insertion in model container [2024-10-14 07:54:18,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:54:18,369 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_fillercode_fillercodesize_normal_file-58.i[913,926] [2024-10-14 07:54:18,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:54:18,437 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:54:18,448 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_fillercode_fillercodesize_normal_file-58.i[913,926] [2024-10-14 07:54:18,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:54:18,497 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:54:18,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18 WrapperNode [2024-10-14 07:54:18,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:54:18,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:54:18,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:54:18,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:54:18,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,553 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2024-10-14 07:54:18,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:54:18,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:54:18,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:54:18,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:54:18,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,595 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 07:54:18,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:54:18,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:54:18,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:54:18,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:54:18,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (1/1) ... [2024-10-14 07:54:18,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:54:18,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:54:18,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 07:54:18,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 07:54:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:54:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 07:54:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 07:54:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:54:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:54:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:54:18,823 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:54:18,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:54:19,173 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 07:54:19,173 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:54:19,281 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:54:19,281 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:54:19,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:54:19 BoogieIcfgContainer [2024-10-14 07:54:19,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:54:19,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:54:19,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:54:19,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:54:19,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:54:18" (1/3) ... [2024-10-14 07:54:19,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611796d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:54:19, skipping insertion in model container [2024-10-14 07:54:19,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:54:18" (2/3) ... [2024-10-14 07:54:19,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611796d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:54:19, skipping insertion in model container [2024-10-14 07:54:19,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:54:19" (3/3) ... [2024-10-14 07:54:19,292 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-58.i [2024-10-14 07:54:19,310 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:54:19,311 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:54:19,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:54:19,404 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;@30e72ef5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:54:19,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:54:19,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 07:54:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 07:54:19,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:54:19,425 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:54:19,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:54:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:54:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -469417080, now seen corresponding path program 1 times [2024-10-14 07:54:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:54:19,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857635728] [2024-10-14 07:54:19,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:54:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:54:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 07:54:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 07:54:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 07:54:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 07:54:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 07:54:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 07:54:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 07:54:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 07:54:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 07:54:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 07:54:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 07:54:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 07:54:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 07:54:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 07:54:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 07:54:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 07:54:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 07:54:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 07:54:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 07:54:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 07:54:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 07:54:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 07:54:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 07:54:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 07:54:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:54:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 07:54:19,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:54:19,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857635728] [2024-10-14 07:54:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857635728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:54:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:54:19,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 07:54:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412728863] [2024-10-14 07:54:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:54:19,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 07:54:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:54:19,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 07:54:19,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 07:54:20,001 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 07:54:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:54:20,052 INFO L93 Difference]: Finished difference Result 125 states and 224 transitions. [2024-10-14 07:54:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 07:54:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 147 [2024-10-14 07:54:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:54:20,064 INFO L225 Difference]: With dead ends: 125 [2024-10-14 07:54:20,065 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 07:54:20,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 07:54:20,074 INFO L432 NwaCegarLoop]: 93 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, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:54:20,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:54:20,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 07:54:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-14 07:54:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 07:54:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2024-10-14 07:54:20,118 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 147 [2024-10-14 07:54:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:54:20,118 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2024-10-14 07:54:20,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-14 07:54:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2024-10-14 07:54:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 07:54:20,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:54:20,123 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:54:20,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:54:20,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:54:20,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:54:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1677614412, now seen corresponding path program 1 times [2024-10-14 07:54:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:54:20,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13012236] [2024-10-14 07:54:20,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:54:20,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:54:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 07:55:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 07:55:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 07:55:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 07:55:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 07:55:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 07:55:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 07:55:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 07:55:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 07:55:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 07:55:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 07:55:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 07:55:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 07:55:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 07:55:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 07:55:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 07:55:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 07:55:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 07:55:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 07:55:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 07:55:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 07:55:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 07:55:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 07:55:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 07:55:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:55:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-14 07:55:13,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:55:13,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13012236] [2024-10-14 07:55:13,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13012236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:55:13,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:55:13,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 07:55:13,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97510258] [2024-10-14 07:55:13,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:55:13,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 07:55:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:55:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 07:55:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-14 07:55:13,479 INFO L87 Difference]: Start difference. First operand 62 states and 96 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 07:55:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:55:15,508 INFO L93 Difference]: Finished difference Result 123 states and 179 transitions. [2024-10-14 07:55:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 07:55:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 147 [2024-10-14 07:55:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:55:15,513 INFO L225 Difference]: With dead ends: 123 [2024-10-14 07:55:15,513 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 07:55:15,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-14 07:55:15,514 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 91 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 07:55:15,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 409 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 07:55:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 07:55:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 73. [2024-10-14 07:55:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 07:55:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 112 transitions. [2024-10-14 07:55:15,529 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 112 transitions. Word has length 147 [2024-10-14 07:55:15,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:55:15,531 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 112 transitions. [2024-10-14 07:55:15,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-10-14 07:55:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2024-10-14 07:55:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 07:55:15,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:55:15,534 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:55:15,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:55:15,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:55:15,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:55:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash -842345522, now seen corresponding path program 1 times [2024-10-14 07:55:15,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:55:15,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587652894] [2024-10-14 07:55:15,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:55:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:55:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat