./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.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 a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:30:47,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:30:47,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:30:47,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:30:47,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:30:47,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:30:47,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:30:47,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:30:47,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:30:47,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:30:47,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:30:47,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:30:47,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:30:47,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:30:47,930 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:30:47,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:30:47,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:30:47,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:30:47,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:30:47,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:30:47,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:30:47,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:30:47,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:30:47,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:30:47,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:30:47,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:30:47,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:30:47,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:30:47,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:30:47,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:30:47,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:30:47,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:30:47,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:30:47,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:30:47,938 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:30:47,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:30:47,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:30:47,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 [2024-11-08 21:30:48,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:30:48,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:30:48,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:30:48,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:30:48,183 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:30:48,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-08 21:30:49,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:30:49,756 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:30:49,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-08 21:30:49,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99286407e/1d1d50c21d624fef963bd078c7f3754d/FLAG938db90a0 [2024-11-08 21:30:50,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99286407e/1d1d50c21d624fef963bd078c7f3754d [2024-11-08 21:30:50,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:30:50,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:30:50,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:30:50,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:30:50,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:30:50,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f51541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50, skipping insertion in model container [2024-11-08 21:30:50,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:30:50,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i[919,932] [2024-11-08 21:30:50,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:30:50,464 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:30:50,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i[919,932] [2024-11-08 21:30:50,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:30:50,520 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:30:50,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50 WrapperNode [2024-11-08 21:30:50,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:30:50,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:30:50,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:30:50,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:30:50,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,577 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-11-08 21:30:50,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:30:50,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:30:50,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:30:50,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:30:50,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,595 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,614 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 21:30:50,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:30:50,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:30:50,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:30:50,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:30:50,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (1/1) ... [2024-11-08 21:30:50,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:30:50,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:30:50,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 21:30:50,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 21:30:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:30:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:30:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:30:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:30:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:30:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:30:50,801 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:30:50,803 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:30:51,249 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-08 21:30:51,249 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:30:51,263 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:30:51,264 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:30:51,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:30:51 BoogieIcfgContainer [2024-11-08 21:30:51,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:30:51,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:30:51,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:30:51,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:30:51,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:30:50" (1/3) ... [2024-11-08 21:30:51,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440e4cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:30:51, skipping insertion in model container [2024-11-08 21:30:51,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:50" (2/3) ... [2024-11-08 21:30:51,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440e4cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:30:51, skipping insertion in model container [2024-11-08 21:30:51,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:30:51" (3/3) ... [2024-11-08 21:30:51,273 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-08 21:30:51,291 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:30:51,291 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:30:51,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:30:51,361 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;@23251834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:30:51,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:30:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 21:30:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-08 21:30:51,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:51,384 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:51,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:51,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:51,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1831376228, now seen corresponding path program 1 times [2024-11-08 21:30:51,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:51,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754792174] [2024-11-08 21:30:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:51,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 21:30:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 21:30:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 21:30:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 21:30:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 21:30:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 21:30:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 21:30:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 21:30:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:30:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:30:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:30:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:30:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:30:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:30:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:30:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:30:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 21:30:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 21:30:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 21:30:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 21:30:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 21:30:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 21:30:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-08 21:30:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 21:30:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 21:30:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 21:30:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:51,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754792174] [2024-11-08 21:30:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754792174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:51,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 21:30:51,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103500995] [2024-11-08 21:30:51,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:51,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 21:30:51,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:51,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 21:30:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:30:51,924 INFO L87 Difference]: Start difference. First operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 21:30:51,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:51,989 INFO L93 Difference]: Finished difference Result 191 states and 340 transitions. [2024-11-08 21:30:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 21:30:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2024-11-08 21:30:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:52,004 INFO L225 Difference]: With dead ends: 191 [2024-11-08 21:30:52,005 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 21:30:52,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:30:52,036 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:52,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:30:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 21:30:52,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 21:30:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 58 states have internal predecessors, (76), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 21:30:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 144 transitions. [2024-11-08 21:30:52,095 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 144 transitions. Word has length 213 [2024-11-08 21:30:52,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:52,096 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 144 transitions. [2024-11-08 21:30:52,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 21:30:52,097 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 144 transitions. [2024-11-08 21:30:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-08 21:30:52,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:52,100 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:52,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:30:52,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:52,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash 203194776, now seen corresponding path program 1 times [2024-11-08 21:30:52,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:52,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502157464] [2024-11-08 21:30:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:52,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 21:30:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 21:30:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 21:30:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 21:30:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 21:30:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 21:30:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 21:30:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 21:30:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:30:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:30:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:30:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:30:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:30:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:30:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:30:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:30:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 21:30:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 21:30:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 21:30:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 21:30:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 21:30:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 21:30:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-08 21:30:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 21:30:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 21:30:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 21:30:53,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:53,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502157464] [2024-11-08 21:30:53,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502157464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:53,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:53,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:30:53,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243336023] [2024-11-08 21:30:53,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:53,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:30:53,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:53,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:30:53,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:30:53,127 INFO L87 Difference]: Start difference. First operand 94 states and 144 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 21:30:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:53,469 INFO L93 Difference]: Finished difference Result 281 states and 434 transitions. [2024-11-08 21:30:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:30:53,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-11-08 21:30:53,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:53,473 INFO L225 Difference]: With dead ends: 281 [2024-11-08 21:30:53,473 INFO L226 Difference]: Without dead ends: 190 [2024-11-08 21:30:53,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:30:53,475 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 90 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:53,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 360 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 21:30:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-08 21:30:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2024-11-08 21:30:53,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 105 states have (on average 1.3047619047619048) internal successors, (137), 105 states have internal predecessors, (137), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-08 21:30:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 273 transitions. [2024-11-08 21:30:53,509 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 273 transitions. Word has length 213 [2024-11-08 21:30:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:53,509 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 273 transitions. [2024-11-08 21:30:53,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 21:30:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 273 transitions. [2024-11-08 21:30:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-08 21:30:53,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:53,513 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:53,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:30:53,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:53,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1179127205, now seen corresponding path program 1 times [2024-11-08 21:30:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:53,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234453847] [2024-11-08 21:30:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:53,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 21:30:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 21:30:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 21:30:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 21:30:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 21:30:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 21:30:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 21:30:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 21:30:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:30:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:30:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:30:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:30:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:30:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:30:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:30:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:30:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 21:30:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 21:30:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 21:30:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 21:30:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 21:30:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-08 21:30:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-08 21:30:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 21:30:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 21:30:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 21:30:53,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:53,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234453847] [2024-11-08 21:30:53,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234453847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:53,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:30:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641374112] [2024-11-08 21:30:53,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:30:53,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:53,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:30:53,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:30:53,878 INFO L87 Difference]: Start difference. First operand 176 states and 273 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 21:30:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:54,082 INFO L93 Difference]: Finished difference Result 299 states and 460 transitions. [2024-11-08 21:30:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:30:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2024-11-08 21:30:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:54,087 INFO L225 Difference]: With dead ends: 299 [2024-11-08 21:30:54,087 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 21:30:54,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:30:54,090 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 87 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:54,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 372 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 21:30:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 21:30:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2024-11-08 21:30:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-08 21:30:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 273 transitions. [2024-11-08 21:30:54,127 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 273 transitions. Word has length 214 [2024-11-08 21:30:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:54,127 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 273 transitions. [2024-11-08 21:30:54,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 21:30:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 273 transitions. [2024-11-08 21:30:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-08 21:30:54,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:54,131 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:54,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 21:30:54,132 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:54,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash -447382917, now seen corresponding path program 1 times [2024-11-08 21:30:54,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:54,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353199667] [2024-11-08 21:30:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:54,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat