./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-54.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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-54.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 97238de597c4e8f84628f68f9062259a9fa36de62009c5faa84eaf7e3db390ff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:13:16,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:13:16,837 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:13:16,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:13:16,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:13:16,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:13:16,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:13:16,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:13:16,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:13:16,866 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:13:16,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:13:16,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:13:16,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:13:16,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:13:16,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:13:16,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:13:16,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:13:16,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:13:16,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:13:16,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:13:16,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:13:16,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:13:16,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:13:16,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:13:16,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:13:16,873 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:13:16,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:13:16,873 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:13:16,873 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:13:16,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:13:16,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:13:16,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:13:16,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:13:16,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:13:16,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:13:16,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:13:16,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:13:16,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:13:16,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:13:16,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:13:16,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:13:16,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:13:16,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97238de597c4e8f84628f68f9062259a9fa36de62009c5faa84eaf7e3db390ff [2024-11-16 14:13:17,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:13:17,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:13:17,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:13:17,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:13:17,091 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:13:17,092 INFO L431 ainManager$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-54.i [2024-11-16 14:13:18,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:13:18,503 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:13:18,504 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-54.i [2024-11-16 14:13:18,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ff70743/f7375705fbb24199bcf0ee047f2f36bc/FLAGa1eb31595 [2024-11-16 14:13:18,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ff70743/f7375705fbb24199bcf0ee047f2f36bc [2024-11-16 14:13:18,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:13:18,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:13:18,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:13:18,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:13:18,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:13:18,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b9c1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18, skipping insertion in model container [2024-11-16 14:13:18,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:13:18,688 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-54.i[919,932] [2024-11-16 14:13:18,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:13:18,781 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:13:18,790 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-54.i[919,932] [2024-11-16 14:13:18,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:13:18,841 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:13:18,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18 WrapperNode [2024-11-16 14:13:18,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:13:18,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:13:18,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:13:18,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:13:18,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,884 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 244 [2024-11-16 14:13:18,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:13:18,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:13:18,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:13:18,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:13:18,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,928 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]. [2024-11-16 14:13:18,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:13:18,948 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:13:18,948 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:13:18,948 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:13:18,949 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (1/1) ... [2024-11-16 14:13:18,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:13:18,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:13:18,982 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) [2024-11-16 14:13:18,984 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 [2024-11-16 14:13:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:13:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:13:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:13:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:13:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:13:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:13:19,107 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:13:19,108 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:13:19,387 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-16 14:13:19,388 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:13:19,405 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:13:19,405 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:13:19,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:13:19 BoogieIcfgContainer [2024-11-16 14:13:19,406 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:13:19,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:13:19,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:13:19,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:13:19,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:13:18" (1/3) ... [2024-11-16 14:13:19,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513ad530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:13:19, skipping insertion in model container [2024-11-16 14:13:19,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:13:18" (2/3) ... [2024-11-16 14:13:19,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513ad530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:13:19, skipping insertion in model container [2024-11-16 14:13:19,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:13:19" (3/3) ... [2024-11-16 14:13:19,416 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-54.i [2024-11-16 14:13:19,431 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:13:19,432 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:13:19,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:13:19,493 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;@137a2f71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:13:19,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:13:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 70 states have internal predecessors, (95), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 14:13:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:13:19,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:13:19,513 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:13:19,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:13:19,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:13:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1875100019, now seen corresponding path program 1 times [2024-11-16 14:13:19,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:13:19,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406208139] [2024-11-16 14:13:19,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:13:19,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:13:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:13:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:13:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:13:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:13:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:13:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:13:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:13:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:13:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 14:13:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:13:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 14:13:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:13:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:13:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:13:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:13:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:13:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:13:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:13:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:13:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:13:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:13:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:13:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:13:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 14:13:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 14:13:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:13:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 14:13:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 14:13:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 14:13:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 14:13:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 14:13:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 14:13:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 14:13:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-16 14:13:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:13:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-16 14:13:19,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:13:19,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406208139] [2024-11-16 14:13:19,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406208139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:13:19,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:13:19,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:13:19,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14464662] [2024-11-16 14:13:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:13:19,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:13:19,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:13:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:13:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:13:20,017 INFO L87 Difference]: Start difference. First operand has 107 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 70 states have internal predecessors, (95), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-16 14:13:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:13:20,058 INFO L93 Difference]: Finished difference Result 205 states and 356 transitions. [2024-11-16 14:13:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:13:20,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 228 [2024-11-16 14:13:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:13:20,066 INFO L225 Difference]: With dead ends: 205 [2024-11-16 14:13:20,066 INFO L226 Difference]: Without dead ends: 101 [2024-11-16 14:13:20,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:13:20,074 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:13:20,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:13:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-16 14:13:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-16 14:13:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 14:13:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 153 transitions. [2024-11-16 14:13:20,120 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 153 transitions. Word has length 228 [2024-11-16 14:13:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:13:20,121 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 153 transitions. [2024-11-16 14:13:20,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-16 14:13:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 153 transitions. [2024-11-16 14:13:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:13:20,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:13:20,126 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:13:20,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:13:20,126 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:13:20,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:13:20,126 INFO L85 PathProgramCache]: Analyzing trace with hash -660537464, now seen corresponding path program 1 times [2024-11-16 14:13:20,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:13:20,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840756434] [2024-11-16 14:13:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:13:20,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:13:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:13:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:13:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:13:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:13:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:13:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:13:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:13:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:13:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 14:13:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:13:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 14:13:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:13:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:13:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:13:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:13:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:13:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:13:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:13:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:13:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:13:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:13:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:13:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:13:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 14:13:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 14:13:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:13:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 14:13:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 14:13:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 14:13:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 14:13:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 14:13:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 14:13:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 14:13:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-16 14:13:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:13:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-16 14:13:20,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:13:20,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840756434] [2024-11-16 14:13:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840756434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:13:20,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:13:20,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:13:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967188789] [2024-11-16 14:13:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:13:20,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:13:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:13:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:13:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:13:20,518 INFO L87 Difference]: Start difference. First operand 101 states and 153 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:13:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:13:20,595 INFO L93 Difference]: Finished difference Result 294 states and 448 transitions. [2024-11-16 14:13:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:13:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 228 [2024-11-16 14:13:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:13:20,601 INFO L225 Difference]: With dead ends: 294 [2024-11-16 14:13:20,603 INFO L226 Difference]: Without dead ends: 196 [2024-11-16 14:13:20,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:13:20,604 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 140 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:13:20,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 403 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:13:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-16 14:13:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2024-11-16 14:13:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 120 states have (on average 1.275) internal successors, (153), 120 states have internal predecessors, (153), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 14:13:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 293 transitions. [2024-11-16 14:13:20,639 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 293 transitions. Word has length 228 [2024-11-16 14:13:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:13:20,639 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 293 transitions. [2024-11-16 14:13:20,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:13:20,640 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 293 transitions. [2024-11-16 14:13:20,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:13:20,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:13:20,645 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:13:20,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:13:20,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:13:20,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:13:20,646 INFO L85 PathProgramCache]: Analyzing trace with hash -857050969, now seen corresponding path program 1 times [2024-11-16 14:13:20,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:13:20,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124751125] [2024-11-16 14:13:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:13:20,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:13:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:13:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:13:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:13:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:13:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:13:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:13:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:13:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:13:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 14:13:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:13:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 14:13:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:13:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:13:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:20,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:13:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:13:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:13:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:13:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:13:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:13:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:13:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:13:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:13:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:13:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 14:13:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 14:13:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:13:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 14:13:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 14:13:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 14:13:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 14:13:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 14:13:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 14:13:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 14:13:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-16 14:13:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:13:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-16 14:13:21,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:13:21,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124751125] [2024-11-16 14:13:21,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124751125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:13:21,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:13:21,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:13:21,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406804179] [2024-11-16 14:13:21,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:13:21,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:13:21,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:13:21,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:13:21,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:13:21,071 INFO L87 Difference]: Start difference. First operand 193 states and 293 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:13:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:13:21,257 INFO L93 Difference]: Finished difference Result 495 states and 751 transitions. [2024-11-16 14:13:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:13:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 228 [2024-11-16 14:13:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:13:21,262 INFO L225 Difference]: With dead ends: 495 [2024-11-16 14:13:21,263 INFO L226 Difference]: Without dead ends: 305 [2024-11-16 14:13:21,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:13:21,264 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 95 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:13:21,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 436 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:13:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-16 14:13:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 260. [2024-11-16 14:13:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 151 states have (on average 1.218543046357616) internal successors, (184), 151 states have internal predecessors, (184), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-16 14:13:21,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 394 transitions. [2024-11-16 14:13:21,306 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 394 transitions. Word has length 228 [2024-11-16 14:13:21,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:13:21,307 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 394 transitions. [2024-11-16 14:13:21,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:13:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 394 transitions. [2024-11-16 14:13:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-16 14:13:21,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:13:21,312 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:13:21,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:13:21,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:13:21,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:13:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 502088659, now seen corresponding path program 1 times [2024-11-16 14:13:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:13:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282283502] [2024-11-16 14:13:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:13:21,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:13:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:13:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:13:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:13:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:13:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:13:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:13:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:13:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:13:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 14:13:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:13:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 14:13:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:13:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:13:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:13:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:13:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:13:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:13:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:13:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:13:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:13:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 14:13:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 14:13:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 14:13:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 14:13:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 14:13:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:13:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 14:13:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 14:13:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 14:13:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 14:13:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 14:13:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 14:13:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 14:13:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-16 14:13:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:13:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 87 proven. 285 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2024-11-16 14:13:22,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:13:22,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282283502] [2024-11-16 14:13:22,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282283502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:13:22,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367636490] [2024-11-16 14:13:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:13:22,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:13:22,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:13:22,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 14:13:22,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 14:13:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:13:22,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-16 14:13:22,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:13:57,833 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 156 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-16 14:14:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1165 proven. 444 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-11-16 14:14:31,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:14:54,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367636490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:14:54,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 14:14:54,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 27] total 36 [2024-11-16 14:14:54,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809849252] [2024-11-16 14:14:54,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 14:14:54,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-16 14:14:54,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:14:54,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-16 14:14:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=521, Invalid=2123, Unknown=8, NotChecked=0, Total=2652 [2024-11-16 14:14:54,733 INFO L87 Difference]: Start difference. First operand 260 states and 394 transitions. Second operand has 36 states, 33 states have (on average 3.727272727272727) internal successors, (123), 32 states have internal predecessors, (123), 13 states have call successors, (70), 7 states have call predecessors, (70), 10 states have return successors, (70), 10 states have call predecessors, (70), 13 states have call successors, (70)