./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-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 d964adfd28c767eded8fdfbce722a54e84eb80fd1e317a796a69a672aa367725 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:26:47,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:26:47,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:26:47,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:26:47,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:26:47,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:26:47,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:26:47,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:26:47,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:26:47,492 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:26:47,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:26:47,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:26:47,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:26:47,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:26:47,495 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:26:47,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:26:47,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:26:47,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:26:47,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:26:47,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:26:47,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:26:47,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:26:47,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:26:47,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:26:47,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:26:47,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:26:47,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:26:47,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:26:47,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:26:47,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:26:47,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:26:47,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:26:47,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:26:47,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:26:47,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:26:47,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:26:47,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:26:47,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:26:47,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:26:47,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:26:47,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:26:47,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:26:47,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d964adfd28c767eded8fdfbce722a54e84eb80fd1e317a796a69a672aa367725 [2024-10-24 07:26:47,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:26:47,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:26:47,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:26:47,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:26:47,754 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:26:47,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i [2024-10-24 07:26:49,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:26:49,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:26:49,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i [2024-10-24 07:26:49,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4fe49d7/1ba19f82c6d646e28896ca089b989bf3/FLAG2a8f39df3 [2024-10-24 07:26:49,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4fe49d7/1ba19f82c6d646e28896ca089b989bf3 [2024-10-24 07:26:49,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:26:49,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:26:49,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:26:49,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:26:49,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:26:49,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:49,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca72220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49, skipping insertion in model container [2024-10-24 07:26:49,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:49,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:26:49,817 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i[919,932] [2024-10-24 07:26:49,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:26:49,909 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:26:49,920 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i[919,932] [2024-10-24 07:26:49,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:26:49,977 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:26:49,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49 WrapperNode [2024-10-24 07:26:49,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:26:49,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:26:49,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:26:49,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:26:49,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:49,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,036 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 201 [2024-10-24 07:26:50,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:26:50,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:26:50,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:26:50,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:26:50,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,083 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 07:26:50,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:26:50,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:26:50,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:26:50,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:26:50,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (1/1) ... [2024-10-24 07:26:50,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:26:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:26:50,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 07:26:50,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 07:26:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:26:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:26:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:26:50,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:26:50,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:26:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:26:50,290 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:26:50,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:26:50,628 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-24 07:26:50,628 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:26:50,681 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:26:50,681 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:26:50,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:26:50 BoogieIcfgContainer [2024-10-24 07:26:50,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:26:50,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:26:50,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:26:50,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:26:50,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:26:49" (1/3) ... [2024-10-24 07:26:50,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ab8b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:26:50, skipping insertion in model container [2024-10-24 07:26:50,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:49" (2/3) ... [2024-10-24 07:26:50,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ab8b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:26:50, skipping insertion in model container [2024-10-24 07:26:50,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:26:50" (3/3) ... [2024-10-24 07:26:50,692 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-33.i [2024-10-24 07:26:50,708 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:26:50,709 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:26:50,780 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:26:50,786 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;@366cc047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:26:50,786 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:26:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 07:26:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 07:26:50,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:50,805 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:50,806 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:50,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 220986510, now seen corresponding path program 1 times [2024-10-24 07:26:50,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:50,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538024818] [2024-10-24 07:26:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:26:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:26:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:26:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:26:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:26:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:26:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:26:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:26:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:26:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:26:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:26:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:26:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:26:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:26:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:26:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:26:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:26:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:26:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:26:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:26:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:26:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 07:26:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:26:51,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538024818] [2024-10-24 07:26:51,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538024818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:51,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:51,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:26:51,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625309303] [2024-10-24 07:26:51,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:51,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:26:51,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:26:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:26:51,284 INFO L87 Difference]: Start difference. First operand has 83 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 07:26:51,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:51,410 INFO L93 Difference]: Finished difference Result 161 states and 286 transitions. [2024-10-24 07:26:51,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:26:51,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 166 [2024-10-24 07:26:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:51,421 INFO L225 Difference]: With dead ends: 161 [2024-10-24 07:26:51,421 INFO L226 Difference]: Without dead ends: 79 [2024-10-24 07:26:51,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:26:51,429 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:51,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:26:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-24 07:26:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-24 07:26:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 07:26:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2024-10-24 07:26:51,467 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 166 [2024-10-24 07:26:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:51,468 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2024-10-24 07:26:51,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 07:26:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2024-10-24 07:26:51,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 07:26:51,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:51,471 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:51,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:26:51,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:51,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:51,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1910866226, now seen corresponding path program 1 times [2024-10-24 07:26:51,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:51,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114380574] [2024-10-24 07:26:51,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:51,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:26:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:26:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:26:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:26:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:26:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:26:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:26:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:26:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:26:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:26:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:26:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:26:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:26:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:26:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:26:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:26:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:26:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:26:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:26:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:26:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:26:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 07:26:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:26:52,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:52,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114380574] [2024-10-24 07:26:52,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114380574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:52,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:52,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:26:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459926899] [2024-10-24 07:26:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:26:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:52,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:26:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:26:52,377 INFO L87 Difference]: Start difference. First operand 79 states and 121 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:26:52,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:52,642 INFO L93 Difference]: Finished difference Result 241 states and 371 transitions. [2024-10-24 07:26:52,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:26:52,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2024-10-24 07:26:52,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:52,646 INFO L225 Difference]: With dead ends: 241 [2024-10-24 07:26:52,646 INFO L226 Difference]: Without dead ends: 163 [2024-10-24 07:26:52,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:26:52,653 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 86 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:52,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 293 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:26:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-24 07:26:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 149. [2024-10-24 07:26:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 94 states have internal predecessors, (125), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 07:26:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 229 transitions. [2024-10-24 07:26:52,676 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 229 transitions. Word has length 166 [2024-10-24 07:26:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:52,677 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 229 transitions. [2024-10-24 07:26:52,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:26:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 229 transitions. [2024-10-24 07:26:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 07:26:52,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:52,679 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:52,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:26:52,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:52,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2041200573, now seen corresponding path program 1 times [2024-10-24 07:26:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:52,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081197760] [2024-10-24 07:26:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:26:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:26:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:26:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:26:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:26:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:26:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:26:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:26:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:26:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:26:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:26:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:26:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:26:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:26:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:26:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:26:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:52,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:26:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:26:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:26:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:26:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:26:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 07:26:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:26:53,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:53,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081197760] [2024-10-24 07:26:53,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081197760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:53,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:53,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:26:53,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434747621] [2024-10-24 07:26:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:53,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:26:53,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:26:53,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:26:53,033 INFO L87 Difference]: Start difference. First operand 149 states and 229 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:26:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:53,209 INFO L93 Difference]: Finished difference Result 259 states and 394 transitions. [2024-10-24 07:26:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:26:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2024-10-24 07:26:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:53,215 INFO L225 Difference]: With dead ends: 259 [2024-10-24 07:26:53,215 INFO L226 Difference]: Without dead ends: 158 [2024-10-24 07:26:53,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:26:53,217 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 83 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:53,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 302 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:26:53,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-24 07:26:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 150. [2024-10-24 07:26:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 07:26:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 229 transitions. [2024-10-24 07:26:53,260 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 229 transitions. Word has length 167 [2024-10-24 07:26:53,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:53,260 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 229 transitions. [2024-10-24 07:26:53,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:26:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 229 transitions. [2024-10-24 07:26:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 07:26:53,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:53,265 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:53,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:26:53,266 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:53,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:53,266 INFO L85 PathProgramCache]: Analyzing trace with hash 841599411, now seen corresponding path program 1 times [2024-10-24 07:26:53,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:53,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949139269] [2024-10-24 07:26:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:53,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:27:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:27:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:27:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:27:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:27:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:27:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:27:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:27:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:27:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:27:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:27:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:27:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:27:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:27:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:27:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:27:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:27:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:27:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:27:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:27:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:27:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 07:27:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 07:27:00,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:00,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949139269] [2024-10-24 07:27:00,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949139269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:00,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:00,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 07:27:00,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065354965] [2024-10-24 07:27:00,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:00,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 07:27:00,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:00,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 07:27:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 07:27:00,351 INFO L87 Difference]: Start difference. First operand 150 states and 229 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:27:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:01,880 INFO L93 Difference]: Finished difference Result 331 states and 478 transitions. [2024-10-24 07:27:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 07:27:01,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-10-24 07:27:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:01,883 INFO L225 Difference]: With dead ends: 331 [2024-10-24 07:27:01,883 INFO L226 Difference]: Without dead ends: 247 [2024-10-24 07:27:01,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-24 07:27:01,884 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 363 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:01,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 570 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 07:27:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-24 07:27:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 192. [2024-10-24 07:27:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 132 states have (on average 1.3257575757575757) internal successors, (175), 133 states have internal predecessors, (175), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 07:27:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 287 transitions. [2024-10-24 07:27:01,908 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 287 transitions. Word has length 168 [2024-10-24 07:27:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:01,908 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 287 transitions. [2024-10-24 07:27:01,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 07:27:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 287 transitions. [2024-10-24 07:27:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 07:27:01,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:01,910 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:01,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 07:27:01,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash 448572401, now seen corresponding path program 1 times [2024-10-24 07:27:01,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:01,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753605208] [2024-10-24 07:27:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:01,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat