./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_fillercodestructure_filler-pr-ci_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.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 44d9bb8f18d9863e5cdf05588cea81abc6d6b23ddccdc4dae72d53975015c367 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:28:24,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:28:24,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:28:24,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:28:24,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:28:24,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:28:24,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:28:24,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:28:24,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:28:24,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:28:24,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:28:24,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:28:24,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:28:24,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:28:24,162 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:28:24,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:28:24,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:28:24,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:28:24,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:28:24,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:28:24,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:28:24,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:28:24,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:28:24,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:28:24,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:28:24,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:28:24,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:28:24,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:28:24,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:28:24,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:28:24,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:28:24,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44d9bb8f18d9863e5cdf05588cea81abc6d6b23ddccdc4dae72d53975015c367 [2024-10-24 07:28:24,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:28:24,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:28:24,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:28:24,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:28:24,403 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:28:24,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-10-24 07:28:25,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:28:26,111 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:28:26,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-10-24 07:28:26,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d39d35c/b31b70df9fe0472781526f9a9405c493/FLAGccdd0de39 [2024-10-24 07:28:26,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d39d35c/b31b70df9fe0472781526f9a9405c493 [2024-10-24 07:28:26,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:28:26,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:28:26,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:28:26,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:28:26,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:28:26,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdeb117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26, skipping insertion in model container [2024-10-24 07:28:26,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:28:26,399 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_fillercodestructure_filler-pr-ci_file-45.i[919,932] [2024-10-24 07:28:26,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:28:26,474 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:28:26,490 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_fillercodestructure_filler-pr-ci_file-45.i[919,932] [2024-10-24 07:28:26,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:28:26,553 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:28:26,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26 WrapperNode [2024-10-24 07:28:26,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:28:26,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:28:26,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:28:26,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:28:26,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,640 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192 [2024-10-24 07:28:26,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:28:26,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:28:26,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:28:26,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:28:26,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,702 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 07:28:26,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:28:26,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:28:26,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:28:26,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:28:26,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (1/1) ... [2024-10-24 07:28:26,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:28:26,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:28:26,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 07:28:26,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 07:28:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:28:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:28:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:28:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:28:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:28:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:28:26,918 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:28:26,920 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:28:27,237 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-24 07:28:27,238 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:28:27,272 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:28:27,273 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:28:27,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:28:27 BoogieIcfgContainer [2024-10-24 07:28:27,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:28:27,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:28:27,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:28:27,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:28:27,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:28:26" (1/3) ... [2024-10-24 07:28:27,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bfebde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:28:27, skipping insertion in model container [2024-10-24 07:28:27,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:28:26" (2/3) ... [2024-10-24 07:28:27,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bfebde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:28:27, skipping insertion in model container [2024-10-24 07:28:27,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:28:27" (3/3) ... [2024-10-24 07:28:27,284 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-45.i [2024-10-24 07:28:27,300 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:28:27,300 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:28:27,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:28:27,368 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;@4461820a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:28:27,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:28:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 49 states have (on average 1.489795918367347) internal successors, (73), 50 states have internal predecessors, (73), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 07:28:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 07:28:27,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:27,384 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:27,384 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:27,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:27,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1358017924, now seen corresponding path program 1 times [2024-10-24 07:28:27,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:27,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116673312] [2024-10-24 07:28:27,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:27,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:28:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:28:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:28:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:28:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:28:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:28:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:28:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:28:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 07:28:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 07:28:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 07:28:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:28:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:28:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:28:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:28:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:28:27,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:27,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116673312] [2024-10-24 07:28:27,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116673312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:27,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:27,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:28:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459778134] [2024-10-24 07:28:27,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:27,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:28:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:27,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:28:27,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:28:27,840 INFO L87 Difference]: Start difference. First operand has 78 states, 49 states have (on average 1.489795918367347) internal successors, (73), 50 states have internal predecessors, (73), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 07:28:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:27,872 INFO L93 Difference]: Finished difference Result 153 states and 274 transitions. [2024-10-24 07:28:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:28:27,875 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2024-10-24 07:28:27,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:27,881 INFO L225 Difference]: With dead ends: 153 [2024-10-24 07:28:27,881 INFO L226 Difference]: Without dead ends: 76 [2024-10-24 07:28:27,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:28:27,886 INFO L432 NwaCegarLoop]: 117 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, 117 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:27,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:28:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-24 07:28:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-24 07:28:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 07:28:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 120 transitions. [2024-10-24 07:28:27,925 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 120 transitions. Word has length 168 [2024-10-24 07:28:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:27,925 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 120 transitions. [2024-10-24 07:28:27,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 07:28:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2024-10-24 07:28:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 07:28:27,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:27,929 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:27,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:28:27,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:27,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash -723337352, now seen corresponding path program 1 times [2024-10-24 07:28:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:27,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513676238] [2024-10-24 07:28:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:27,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:28:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:28:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:28:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:28:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:28:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:28:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:28:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:28:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 07:28:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 07:28:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 07:28:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:28:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:28:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:28:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:28:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:28:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513676238] [2024-10-24 07:28:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513676238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:28,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:28:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470868705] [2024-10-24 07:28:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:28,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:28:28,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:28:28,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:28:28,253 INFO L87 Difference]: Start difference. First operand 76 states and 120 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:28,384 INFO L93 Difference]: Finished difference Result 222 states and 350 transitions. [2024-10-24 07:28:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:28:28,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-10-24 07:28:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:28,388 INFO L225 Difference]: With dead ends: 222 [2024-10-24 07:28:28,388 INFO L226 Difference]: Without dead ends: 147 [2024-10-24 07:28:28,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:28:28,393 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 100 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:28,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 301 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:28:28,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-24 07:28:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-10-24 07:28:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 90 states have internal predecessors, (122), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 07:28:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 226 transitions. [2024-10-24 07:28:28,427 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 226 transitions. Word has length 168 [2024-10-24 07:28:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:28,431 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 226 transitions. [2024-10-24 07:28:28,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 226 transitions. [2024-10-24 07:28:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 07:28:28,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:28,433 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:28,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:28:28,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:28,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:28,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1270807354, now seen corresponding path program 1 times [2024-10-24 07:28:28,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:28,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835363569] [2024-10-24 07:28:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:28,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:28:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:28:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:28:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:28:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:28:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:28:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:28:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:28:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 07:28:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 07:28:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 07:28:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:28:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:28:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:28:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:28:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:28:28,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835363569] [2024-10-24 07:28:28,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835363569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:28,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:28,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:28:28,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110839183] [2024-10-24 07:28:28,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:28,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:28:28,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:28,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:28:28,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:28:28,595 INFO L87 Difference]: Start difference. First operand 145 states and 226 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:28,634 INFO L93 Difference]: Finished difference Result 299 states and 466 transitions. [2024-10-24 07:28:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:28:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-10-24 07:28:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:28,637 INFO L225 Difference]: With dead ends: 299 [2024-10-24 07:28:28,638 INFO L226 Difference]: Without dead ends: 155 [2024-10-24 07:28:28,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:28:28,639 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 106 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:28,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 213 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:28:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-24 07:28:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2024-10-24 07:28:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 98 states have (on average 1.346938775510204) internal successors, (132), 98 states have internal predecessors, (132), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 07:28:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 236 transitions. [2024-10-24 07:28:28,656 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 236 transitions. Word has length 168 [2024-10-24 07:28:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:28,657 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 236 transitions. [2024-10-24 07:28:28,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 236 transitions. [2024-10-24 07:28:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-24 07:28:28,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:28,659 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:28,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:28:28,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2106333188, now seen corresponding path program 1 times [2024-10-24 07:28:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:28,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801067133] [2024-10-24 07:28:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:28,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:28:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:28:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:28:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:28:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:28:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:28:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:28:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:28:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 07:28:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 07:28:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 07:28:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:28:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:28:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:28:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:28:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:28:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:43,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801067133] [2024-10-24 07:28:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801067133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:43,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:43,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:28:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461079312] [2024-10-24 07:28:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:43,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:28:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:28:43,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:28:43,017 INFO L87 Difference]: Start difference. First operand 153 states and 236 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:43,501 INFO L93 Difference]: Finished difference Result 451 states and 686 transitions. [2024-10-24 07:28:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:28:43,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170 [2024-10-24 07:28:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:43,511 INFO L225 Difference]: With dead ends: 451 [2024-10-24 07:28:43,511 INFO L226 Difference]: Without dead ends: 299 [2024-10-24 07:28:43,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:28:43,516 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 107 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:43,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 274 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 07:28:43,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-24 07:28:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 244. [2024-10-24 07:28:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 171 states have (on average 1.3976608187134503) internal successors, (239), 173 states have internal predecessors, (239), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 07:28:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 375 transitions. [2024-10-24 07:28:43,562 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 375 transitions. Word has length 170 [2024-10-24 07:28:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:43,563 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 375 transitions. [2024-10-24 07:28:43,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 375 transitions. [2024-10-24 07:28:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-24 07:28:43,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:43,568 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:43,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 07:28:43,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1405268610, now seen corresponding path program 1 times [2024-10-24 07:28:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:43,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147252234] [2024-10-24 07:28:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:43,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:28:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:28:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:28:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:28:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:28:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:28:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:28:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:28:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 07:28:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 07:28:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 07:28:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:28:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:28:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:28:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:28:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:28:45,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:45,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147252234] [2024-10-24 07:28:45,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147252234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:45,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:45,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:28:45,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669488572] [2024-10-24 07:28:45,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:45,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:28:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:28:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:28:45,256 INFO L87 Difference]: Start difference. First operand 244 states and 375 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:45,785 INFO L93 Difference]: Finished difference Result 542 states and 824 transitions. [2024-10-24 07:28:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:28:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170 [2024-10-24 07:28:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:45,791 INFO L225 Difference]: With dead ends: 542 [2024-10-24 07:28:45,792 INFO L226 Difference]: Without dead ends: 299 [2024-10-24 07:28:45,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:28:45,794 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 96 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:45,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 313 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 07:28:45,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-24 07:28:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 239. [2024-10-24 07:28:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 166 states have (on average 1.391566265060241) internal successors, (231), 168 states have internal predecessors, (231), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 07:28:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 367 transitions. [2024-10-24 07:28:45,843 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 367 transitions. Word has length 170 [2024-10-24 07:28:45,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:45,844 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 367 transitions. [2024-10-24 07:28:45,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:28:45,844 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 367 transitions. [2024-10-24 07:28:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-24 07:28:45,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:45,846 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:45,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 07:28:45,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:45,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash -928121618, now seen corresponding path program 1 times [2024-10-24 07:28:45,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:45,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532907723] [2024-10-24 07:28:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:45,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat