./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.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-10.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 acffbf4568185b4df73fbdfca312807b0d1acfe4982bda3fcfc32319476145af --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:27:59,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:27:59,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:27:59,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:27:59,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:27:59,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:27:59,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:27:59,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:27:59,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:27:59,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:27:59,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:27:59,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:27:59,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:27:59,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:27:59,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:27:59,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:27:59,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:27:59,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:27:59,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:27:59,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:27:59,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:27:59,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:27:59,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:27:59,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:27:59,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:27:59,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:27:59,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:27:59,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:27:59,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:27:59,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:27:59,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:27:59,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:27:59,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:27:59,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:27:59,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:27:59,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:27:59,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:27:59,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:27:59,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:27:59,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:27:59,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:27:59,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:27:59,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acffbf4568185b4df73fbdfca312807b0d1acfe4982bda3fcfc32319476145af [2024-11-08 21:28:00,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:28:00,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:28:00,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:28:00,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:28:00,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:28:00,137 INFO L431 ainManager$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-10.i [2024-11-08 21:28:01,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:28:01,896 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:28:01,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2024-11-08 21:28:01,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2ec1c53/c918f0eaab574b12a6ce76d11b68dbc1/FLAGf5f74470f [2024-11-08 21:28:02,226 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2ec1c53/c918f0eaab574b12a6ce76d11b68dbc1 [2024-11-08 21:28:02,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:28:02,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:28:02,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:28:02,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:28:02,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:28:02,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747cdd9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02, skipping insertion in model container [2024-11-08 21:28:02,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:28:02,470 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-10.i[919,932] [2024-11-08 21:28:02,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:28:02,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:28:02,605 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-10.i[919,932] [2024-11-08 21:28:02,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:28:02,678 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:28:02,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02 WrapperNode [2024-11-08 21:28:02,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:28:02,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:28:02,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:28:02,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:28:02,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,769 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2024-11-08 21:28:02,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:28:02,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:28:02,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:28:02,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:28:02,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,834 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 21:28:02,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:28:02,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:28:02,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:28:02,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:28:02,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (1/1) ... [2024-11-08 21:28:02,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:28:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:02,911 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 21:28:02,915 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 21:28:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:28:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:28:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:28:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:28:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:28:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:28:03,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:28:03,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:28:03,672 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-08 21:28:03,673 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:28:03,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:28:03,693 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:28:03,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:28:03 BoogieIcfgContainer [2024-11-08 21:28:03,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:28:03,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:28:03,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:28:03,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:28:03,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:28:02" (1/3) ... [2024-11-08 21:28:03,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184fd6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:28:03, skipping insertion in model container [2024-11-08 21:28:03,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:02" (2/3) ... [2024-11-08 21:28:03,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184fd6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:28:03, skipping insertion in model container [2024-11-08 21:28:03,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:28:03" (3/3) ... [2024-11-08 21:28:03,703 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2024-11-08 21:28:03,721 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:28:03,721 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:28:03,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:28:03,814 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;@585e63e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:28:03,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:28:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 94 states have internal predecessors, (133), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 21:28:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-08 21:28:03,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:03,836 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:03,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:03,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash -863788020, now seen corresponding path program 1 times [2024-11-08 21:28:03,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:03,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632719854] [2024-11-08 21:28:03,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:03,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:28:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:28:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:28:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:28:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:28:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:28:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:28:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:28:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:28:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:28:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:28:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:28:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 21:28:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:28:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:28:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:28:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:28:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:28:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:28:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:28:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:28:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:28:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:28:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:28:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:28:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:28:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:28:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:28:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-08 21:28:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632719854] [2024-11-08 21:28:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632719854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:04,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 21:28:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025024231] [2024-11-08 21:28:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:04,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 21:28:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:04,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 21:28:04,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:28:04,521 INFO L87 Difference]: Start difference. First operand has 138 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 94 states have internal predecessors, (133), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:04,581 INFO L93 Difference]: Finished difference Result 269 states and 470 transitions. [2024-11-08 21:28:04,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 21:28:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2024-11-08 21:28:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:04,596 INFO L225 Difference]: With dead ends: 269 [2024-11-08 21:28:04,596 INFO L226 Difference]: Without dead ends: 134 [2024-11-08 21:28:04,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 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 21:28:04,604 INFO L432 NwaCegarLoop]: 210 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, 210 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 21:28:04,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:28:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-08 21:28:04,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-08 21:28:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 21:28:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 210 transitions. [2024-11-08 21:28:04,669 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 210 transitions. Word has length 262 [2024-11-08 21:28:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:04,669 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 210 transitions. [2024-11-08 21:28:04,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:04,670 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 210 transitions. [2024-11-08 21:28:04,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-08 21:28:04,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:04,679 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:04,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:28:04,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -798866748, now seen corresponding path program 1 times [2024-11-08 21:28:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:04,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684525089] [2024-11-08 21:28:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:28:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:28:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:28:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:28:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:28:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:28:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:28:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:28:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:28:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:28:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:28:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:28:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 21:28:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:28:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:28:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:28:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:28:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:28:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:28:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:28:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:28:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:28:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:28:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:28:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:28:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:28:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:28:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:28:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-08 21:28:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:05,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:05,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684525089] [2024-11-08 21:28:05,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684525089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:05,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:05,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:28:05,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454359987] [2024-11-08 21:28:05,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:05,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:28:05,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:28:05,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:28:05,679 INFO L87 Difference]: Start difference. First operand 134 states and 210 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-08 21:28:05,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:05,976 INFO L93 Difference]: Finished difference Result 397 states and 625 transitions. [2024-11-08 21:28:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:28:05,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-08 21:28:05,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:05,982 INFO L225 Difference]: With dead ends: 397 [2024-11-08 21:28:05,982 INFO L226 Difference]: Without dead ends: 266 [2024-11-08 21:28:05,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 21:28:05,985 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 130 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:05,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 601 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 21:28:05,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-08 21:28:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 206. [2024-11-08 21:28:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 119 states have (on average 1.3025210084033614) internal successors, (155), 119 states have internal predecessors, (155), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 21:28:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 323 transitions. [2024-11-08 21:28:06,047 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 323 transitions. Word has length 262 [2024-11-08 21:28:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:06,049 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 323 transitions. [2024-11-08 21:28:06,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-08 21:28:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 323 transitions. [2024-11-08 21:28:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-08 21:28:06,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:06,057 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:06,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:28:06,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:06,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:06,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1039366279, now seen corresponding path program 1 times [2024-11-08 21:28:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517314438] [2024-11-08 21:28:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:06,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:29:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:29:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:29:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:29:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:29:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:29:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:29:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:29:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:29:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:29:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:29:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:29:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:29:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:29:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:29:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:29:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:29:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 21:29:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 21:29:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:29:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:29:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:29:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:29:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:29:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 21:29:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 21:29:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 21:29:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:29:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:29:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:29:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 21:29:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:29:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 21:29:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:29:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-08 21:29:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 21:29:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-08 21:29:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-08 21:29:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-08 21:29:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-08 21:29:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-08 21:29:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-08 21:29:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:29:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:29:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517314438] [2024-11-08 21:29:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517314438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:29:00,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:29:00,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 21:29:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640958167] [2024-11-08 21:29:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:29:00,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 21:29:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:29:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 21:29:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-08 21:29:00,552 INFO L87 Difference]: Start difference. First operand 206 states and 323 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:29:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:29:05,838 INFO L93 Difference]: Finished difference Result 705 states and 1095 transitions. [2024-11-08 21:29:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 21:29:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-08 21:29:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:29:05,848 INFO L225 Difference]: With dead ends: 705 [2024-11-08 21:29:05,851 INFO L226 Difference]: Without dead ends: 574 [2024-11-08 21:29:05,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 21:29:05,857 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1271 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 21:29:05,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1506 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 21:29:05,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-08 21:29:05,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 312. [2024-11-08 21:29:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 224 states have (on average 1.4017857142857142) internal successors, (314), 224 states have internal predecessors, (314), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 21:29:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 482 transitions. [2024-11-08 21:29:05,918 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 482 transitions. Word has length 263 [2024-11-08 21:29:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:29:05,921 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 482 transitions. [2024-11-08 21:29:05,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:29:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 482 transitions. [2024-11-08 21:29:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-08 21:29:05,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:29:05,928 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:05,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 21:29:05,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:29:05,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:29:05,931 INFO L85 PathProgramCache]: Analyzing trace with hash -854290935, now seen corresponding path program 1 times [2024-11-08 21:29:05,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:29:05,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654211986] [2024-11-08 21:29:05,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:29:05,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:29:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat