./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-74.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_floatingpointinfluence_no-floats_file-74.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 16cd25d5ee96e9312308044e9eb88c0f13c8398163b5a1d192ff53bfebca792b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 06:56:29,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 06:56:29,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 06:56:29,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 06:56:29,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 06:56:29,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 06:56:29,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 06:56:29,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 06:56:29,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 06:56:29,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 06:56:29,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 06:56:29,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 06:56:29,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 06:56:29,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 06:56:29,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 06:56:29,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 06:56:29,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 06:56:29,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 06:56:29,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 06:56:29,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 06:56:29,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 06:56:29,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 06:56:29,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 06:56:29,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 06:56:29,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 06:56:29,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 06:56:29,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 06:56:29,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 06:56:29,335 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 06:56:29,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 06:56:29,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 06:56:29,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 06:56:29,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:56:29,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 06:56:29,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 06:56:29,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 06:56:29,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 06:56:29,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 06:56:29,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 06:56:29,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 06:56:29,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 06:56:29,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 06:56:29,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16cd25d5ee96e9312308044e9eb88c0f13c8398163b5a1d192ff53bfebca792b [2024-11-10 06:56:29,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 06:56:29,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 06:56:29,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 06:56:29,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 06:56:29,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 06:56:29,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-74.i [2024-11-10 06:56:31,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 06:56:31,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 06:56:31,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-74.i [2024-11-10 06:56:31,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13abe6e9d/6bf1c98c2cd74217a3fa6181c13d558f/FLAG12b9fd026 [2024-11-10 06:56:31,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13abe6e9d/6bf1c98c2cd74217a3fa6181c13d558f [2024-11-10 06:56:31,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 06:56:31,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 06:56:31,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 06:56:31,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 06:56:31,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 06:56:31,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31, skipping insertion in model container [2024-11-10 06:56:31,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 06:56:31,598 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_floatingpointinfluence_no-floats_file-74.i[916,929] [2024-11-10 06:56:31,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:56:31,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 06:56:31,685 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_floatingpointinfluence_no-floats_file-74.i[916,929] [2024-11-10 06:56:31,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:56:31,726 INFO L204 MainTranslator]: Completed translation [2024-11-10 06:56:31,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31 WrapperNode [2024-11-10 06:56:31,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 06:56:31,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 06:56:31,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 06:56:31,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 06:56:31,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,821 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-10 06:56:31,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 06:56:31,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 06:56:31,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 06:56:31,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 06:56:31,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,851 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]. [2024-11-10 06:56:31,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,861 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 06:56:31,874 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 06:56:31,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 06:56:31,875 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 06:56:31,875 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (1/1) ... [2024-11-10 06:56:31,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:56:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:56:31,918 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) [2024-11-10 06:56:31,921 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 [2024-11-10 06:56:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 06:56:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 06:56:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 06:56:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 06:56:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 06:56:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 06:56:32,053 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 06:56:32,057 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 06:56:32,377 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-10 06:56:32,378 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 06:56:32,391 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 06:56:32,392 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 06:56:32,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:56:32 BoogieIcfgContainer [2024-11-10 06:56:32,393 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 06:56:32,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 06:56:32,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 06:56:32,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 06:56:32,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:56:31" (1/3) ... [2024-11-10 06:56:32,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3d256b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:56:32, skipping insertion in model container [2024-11-10 06:56:32,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:56:31" (2/3) ... [2024-11-10 06:56:32,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3d256b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:56:32, skipping insertion in model container [2024-11-10 06:56:32,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:56:32" (3/3) ... [2024-11-10 06:56:32,403 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-74.i [2024-11-10 06:56:32,419 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 06:56:32,419 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 06:56:32,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 06:56:32,480 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;@b0a96ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 06:56:32,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 06:56:32,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 38 states have internal predecessors, (48), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 06:56:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 06:56:32,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:56:32,503 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:56:32,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:56:32,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:56:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1704949025, now seen corresponding path program 1 times [2024-11-10 06:56:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:56:32,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936953451] [2024-11-10 06:56:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:56:32,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:56:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:56:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:56:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 06:56:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:56:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 06:56:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:56:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 06:56:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:56:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:56:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:56:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 06:56:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:56:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 06:56:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:56:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:56:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 06:56:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 06:56:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 06:56:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 06:56:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 06:56:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 06:56:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 06:56:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-10 06:56:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:56:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936953451] [2024-11-10 06:56:32,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936953451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:56:32,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:56:32,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 06:56:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248358463] [2024-11-10 06:56:32,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:56:32,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 06:56:32,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:56:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 06:56:32,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:56:32,989 INFO L87 Difference]: Start difference. First operand has 62 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 38 states have internal predecessors, (48), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-10 06:56:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:56:33,019 INFO L93 Difference]: Finished difference Result 116 states and 199 transitions. [2024-11-10 06:56:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 06:56:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 136 [2024-11-10 06:56:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:56:33,032 INFO L225 Difference]: With dead ends: 116 [2024-11-10 06:56:33,032 INFO L226 Difference]: Without dead ends: 57 [2024-11-10 06:56:33,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:56:33,040 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 06:56:33,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 06:56:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-10 06:56:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-10 06:56:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 06:56:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2024-11-10 06:56:33,102 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 136 [2024-11-10 06:56:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:56:33,104 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2024-11-10 06:56:33,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-10 06:56:33,105 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2024-11-10 06:56:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 06:56:33,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:56:33,111 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:56:33,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 06:56:33,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:56:33,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:56:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 601892735, now seen corresponding path program 1 times [2024-11-10 06:56:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:56:33,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892585157] [2024-11-10 06:56:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:56:33,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:56:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:56:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:56:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 06:56:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:56:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 06:56:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:56:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 06:56:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:56:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:56:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:56:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 06:56:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:56:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 06:56:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:56:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:56:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 06:56:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 06:56:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 06:56:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 06:56:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 06:56:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 06:56:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 06:56:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-10 06:56:35,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:56:35,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892585157] [2024-11-10 06:56:35,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892585157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:56:35,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:56:35,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 06:56:35,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113216991] [2024-11-10 06:56:35,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:56:35,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 06:56:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:56:35,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 06:56:35,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 06:56:35,887 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-10 06:56:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:56:36,288 INFO L93 Difference]: Finished difference Result 137 states and 196 transitions. [2024-11-10 06:56:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 06:56:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 136 [2024-11-10 06:56:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:56:36,292 INFO L225 Difference]: With dead ends: 137 [2024-11-10 06:56:36,292 INFO L226 Difference]: Without dead ends: 134 [2024-11-10 06:56:36,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-10 06:56:36,295 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 105 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 06:56:36,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 429 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 06:56:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-10 06:56:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2024-11-10 06:56:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 58 states have internal predecessors, (69), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 06:56:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 157 transitions. [2024-11-10 06:56:36,335 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 157 transitions. Word has length 136 [2024-11-10 06:56:36,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:56:36,337 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 157 transitions. [2024-11-10 06:56:36,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-10 06:56:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 157 transitions. [2024-11-10 06:56:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 06:56:36,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:56:36,341 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:56:36,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 06:56:36,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:56:36,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:56:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1205561728, now seen corresponding path program 1 times [2024-11-10 06:56:36,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:56:36,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444575671] [2024-11-10 06:56:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:56:36,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:56:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:56:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:56:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 06:56:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:56:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 06:56:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:56:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 06:56:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:56:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:56:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:56:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 06:56:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:56:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 06:56:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:56:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:56:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 06:56:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 06:56:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 06:56:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 06:56:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 06:56:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 06:56:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 06:56:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:56:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-10 06:56:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:56:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444575671] [2024-11-10 06:56:36,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444575671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:56:36,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:56:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 06:56:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186761263] [2024-11-10 06:56:36,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:56:36,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 06:56:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:56:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 06:56:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:56:36,659 INFO L87 Difference]: Start difference. First operand 105 states and 157 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-10 06:56:36,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:56:36,845 INFO L93 Difference]: Finished difference Result 170 states and 251 transitions. [2024-11-10 06:56:36,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 06:56:36,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 136 [2024-11-10 06:56:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:56:36,848 INFO L225 Difference]: With dead ends: 170 [2024-11-10 06:56:36,848 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 06:56:36,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-10 06:56:36,852 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 45 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 06:56:36,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 268 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 06:56:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 06:56:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2024-11-10 06:56:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 06:56:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 156 transitions. [2024-11-10 06:56:36,881 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 156 transitions. Word has length 136 [2024-11-10 06:56:36,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:56:36,885 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 156 transitions. [2024-11-10 06:56:36,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-10 06:56:36,885 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 156 transitions. [2024-11-10 06:56:36,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-10 06:56:36,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:56:36,887 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:56:36,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 06:56:36,888 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:56:36,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:56:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1737780937, now seen corresponding path program 1 times [2024-11-10 06:56:36,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:56:36,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266489613] [2024-11-10 06:56:36,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:56:36,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:56:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat