./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-ps-ci_file-31.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-ps-ci_file-31.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 b0ba689c7bb19f024edc91f3d1d4af93d56766db0d003f79ab819b08f0092357 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:59:25,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:59:25,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:59:25,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:59:25,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:59:25,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:59:25,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:59:25,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:59:25,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:59:25,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:59:25,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:59:25,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:59:25,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:59:25,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:59:25,946 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:59:25,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:59:25,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:59:25,947 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:59:25,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:59:25,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:59:25,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:59:25,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:59:25,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:59:25,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:59:25,952 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:59:25,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:59:25,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:59:25,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:59:25,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:59:25,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:59:25,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:59:25,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:59:25,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:59:25,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:59:25,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:59:25,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:59:25,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:59:25,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:59:25,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:59:25,957 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:59:25,957 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:59:25,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:59:25,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0ba689c7bb19f024edc91f3d1d4af93d56766db0d003f79ab819b08f0092357 [2024-10-24 07:59:26,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:59:26,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:59:26,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:59:26,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:59:26,237 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:59:26,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-31.i [2024-10-24 07:59:27,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:59:27,937 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:59:27,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-31.i [2024-10-24 07:59:27,951 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83dfad919/a87f5d7d61c24fdb8a5e3f27ab3f9e83/FLAG631f24561 [2024-10-24 07:59:27,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83dfad919/a87f5d7d61c24fdb8a5e3f27ab3f9e83 [2024-10-24 07:59:27,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:59:27,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:59:27,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:59:27,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:59:27,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:59:27,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:59:27" (1/1) ... [2024-10-24 07:59:27,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdeb1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:27, skipping insertion in model container [2024-10-24 07:59:27,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:59:27" (1/1) ... [2024-10-24 07:59:28,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:59:28,196 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-ps-ci_file-31.i[919,932] [2024-10-24 07:59:28,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:59:28,318 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:59:28,329 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-ps-ci_file-31.i[919,932] [2024-10-24 07:59:28,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:59:28,404 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:59:28,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28 WrapperNode [2024-10-24 07:59:28,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:59:28,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:59:28,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:59:28,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:59:28,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,476 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2024-10-24 07:59:28,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:59:28,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:59:28,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:59:28,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:59:28,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,515 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 07:59:28,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:59:28,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:59:28,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:59:28,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:59:28,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (1/1) ... [2024-10-24 07:59:28,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:59:28,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:59:28,605 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 07:59:28,609 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 07:59:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:59:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:59:28,673 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:59:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:59:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:59:28,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:59:28,769 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:59:28,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:59:29,219 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 07:59:29,219 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:59:29,265 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:59:29,265 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:59:29,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:59:29 BoogieIcfgContainer [2024-10-24 07:59:29,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:59:29,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:59:29,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:59:29,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:59:29,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:59:27" (1/3) ... [2024-10-24 07:59:29,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:59:29, skipping insertion in model container [2024-10-24 07:59:29,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:59:28" (2/3) ... [2024-10-24 07:59:29,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:59:29, skipping insertion in model container [2024-10-24 07:59:29,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:59:29" (3/3) ... [2024-10-24 07:59:29,278 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-31.i [2024-10-24 07:59:29,294 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:59:29,295 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:59:29,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:59:29,357 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;@4e475d07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:59:29,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:59:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 07:59:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 07:59:29,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:59:29,379 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:29,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:59:29,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:59:29,387 INFO L85 PathProgramCache]: Analyzing trace with hash -70641206, now seen corresponding path program 1 times [2024-10-24 07:59:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:59:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978853058] [2024-10-24 07:59:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:59:29,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:59:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:59:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:59:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:59:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:59:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:59:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:59:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:59:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:59:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:59:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:59:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:59:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:59:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:59:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:59:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:59:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:59:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:59:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:59:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:59:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:59:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:59:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:59:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:59:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:59:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:59:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:59:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:59:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 07:59:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 07:59:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-24 07:59:29,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:59:29,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978853058] [2024-10-24 07:59:29,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978853058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:59:29,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:59:29,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:59:29,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985150389] [2024-10-24 07:59:29,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:59:29,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:59:29,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:59:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:59:29,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:59:29,930 INFO L87 Difference]: Start difference. First operand has 87 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:29,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:59:29,975 INFO L93 Difference]: Finished difference Result 171 states and 307 transitions. [2024-10-24 07:59:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:59:29,978 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2024-10-24 07:59:29,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:59:29,986 INFO L225 Difference]: With dead ends: 171 [2024-10-24 07:59:29,987 INFO L226 Difference]: Without dead ends: 85 [2024-10-24 07:59:29,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 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 07:59:29,994 INFO L432 NwaCegarLoop]: 132 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, 132 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 07:59:29,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:59:30,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-24 07:59:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-24 07:59:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 07:59:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2024-10-24 07:59:30,051 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 183 [2024-10-24 07:59:30,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:59:30,051 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2024-10-24 07:59:30,052 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2024-10-24 07:59:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 07:59:30,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:59:30,056 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:30,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:59:30,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:59:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:59:30,059 INFO L85 PathProgramCache]: Analyzing trace with hash 204048212, now seen corresponding path program 1 times [2024-10-24 07:59:30,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:59:30,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601183926] [2024-10-24 07:59:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:59:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:59:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:59:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:59:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:59:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:59:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:59:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:59:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:59:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:59:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:59:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:59:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:59:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:59:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:59:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:59:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:59:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:59:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:59:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:59:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:59:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:59:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:59:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:59:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:59:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:59:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:59:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:59:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:59:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 07:59:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 07:59:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-24 07:59:30,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:59:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601183926] [2024-10-24 07:59:30,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601183926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:59:30,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:59:30,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:59:30,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918863669] [2024-10-24 07:59:30,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:59:30,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:59:30,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:59:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:59:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:59:30,474 INFO L87 Difference]: Start difference. First operand 85 states and 135 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-10-24 07:59:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:59:30,576 INFO L93 Difference]: Finished difference Result 252 states and 401 transitions. [2024-10-24 07:59:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:59:30,576 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 183 [2024-10-24 07:59:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:59:30,583 INFO L225 Difference]: With dead ends: 252 [2024-10-24 07:59:30,583 INFO L226 Difference]: Without dead ends: 168 [2024-10-24 07:59:30,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 07:59:30,585 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 125 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:59:30,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 374 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:59:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-24 07:59:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 89. [2024-10-24 07:59:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 07:59:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 140 transitions. [2024-10-24 07:59:30,612 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 140 transitions. Word has length 183 [2024-10-24 07:59:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:59:30,614 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 140 transitions. [2024-10-24 07:59:30,614 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-10-24 07:59:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 140 transitions. [2024-10-24 07:59:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 07:59:30,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:59:30,620 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:30,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:59:30,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:59:30,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:59:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1979055574, now seen corresponding path program 1 times [2024-10-24 07:59:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:59:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127787325] [2024-10-24 07:59:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:59:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:59:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:59:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:59:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:59:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:59:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:59:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:59:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:59:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:59:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:59:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:59:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:59:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:59:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:59:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:59:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:59:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:59:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:59:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:59:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:59:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:59:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:59:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:59:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:59:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:59:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:59:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:59:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:59:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 07:59:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 07:59:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-24 07:59:38,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:59:38,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127787325] [2024-10-24 07:59:38,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127787325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:59:38,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:59:38,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 07:59:38,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874919438] [2024-10-24 07:59:38,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:59:38,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 07:59:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:59:38,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 07:59:38,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 07:59:38,906 INFO L87 Difference]: Start difference. First operand 89 states and 140 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:59:41,049 INFO L93 Difference]: Finished difference Result 359 states and 537 transitions. [2024-10-24 07:59:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 07:59:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2024-10-24 07:59:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:59:41,053 INFO L225 Difference]: With dead ends: 359 [2024-10-24 07:59:41,053 INFO L226 Difference]: Without dead ends: 271 [2024-10-24 07:59:41,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-10-24 07:59:41,055 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 291 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:59:41,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 767 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 07:59:41,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-24 07:59:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 194. [2024-10-24 07:59:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.4031007751937985) internal successors, (181), 130 states have internal predecessors, (181), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:59:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 301 transitions. [2024-10-24 07:59:41,108 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 301 transitions. Word has length 183 [2024-10-24 07:59:41,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:59:41,108 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 301 transitions. [2024-10-24 07:59:41,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 301 transitions. [2024-10-24 07:59:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 07:59:41,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:59:41,112 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:41,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:59:41,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:59:41,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:59:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 967938324, now seen corresponding path program 1 times [2024-10-24 07:59:41,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:59:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394121517] [2024-10-24 07:59:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:59:41,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:59:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:59:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:59:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:59:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:59:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:59:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:59:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:59:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:59:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:59:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:59:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:59:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:59:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:59:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:59:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:59:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:59:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:59:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:59:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:59:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:59:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:59:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:59:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:59:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:59:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:59:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:59:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 07:59:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 07:59:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 07:59:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:59:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-24 07:59:45,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:59:45,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394121517] [2024-10-24 07:59:45,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394121517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:59:45,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:59:45,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 07:59:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995078252] [2024-10-24 07:59:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:59:45,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 07:59:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:59:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 07:59:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-24 07:59:45,952 INFO L87 Difference]: Start difference. First operand 194 states and 301 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:59:48,172 INFO L93 Difference]: Finished difference Result 531 states and 774 transitions. [2024-10-24 07:59:48,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 07:59:48,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2024-10-24 07:59:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:59:48,178 INFO L225 Difference]: With dead ends: 531 [2024-10-24 07:59:48,179 INFO L226 Difference]: Without dead ends: 443 [2024-10-24 07:59:48,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-24 07:59:48,181 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 400 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:59:48,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 765 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 07:59:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-24 07:59:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 292. [2024-10-24 07:59:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 209 states have (on average 1.4066985645933014) internal successors, (294), 213 states have internal predecessors, (294), 72 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 68 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-24 07:59:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 438 transitions. [2024-10-24 07:59:48,230 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 438 transitions. Word has length 183 [2024-10-24 07:59:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:59:48,231 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 438 transitions. [2024-10-24 07:59:48,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-24 07:59:48,231 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 438 transitions. [2024-10-24 07:59:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-24 07:59:48,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:59:48,234 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:48,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 07:59:48,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:59:48,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:59:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash 212745287, now seen corresponding path program 1 times [2024-10-24 07:59:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:59:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147288044] [2024-10-24 07:59:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:59:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:59:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat