./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:01:58,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:01:58,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:01:58,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:01:58,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:01:58,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:01:58,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:01:58,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:01:58,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:01:58,621 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:01:58,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:01:58,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:01:58,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:01:58,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:01:58,625 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:01:58,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:01:58,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:01:58,626 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:01:58,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:01:58,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:01:58,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:01:58,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:01:58,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:01:58,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:01:58,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:01:58,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:01:58,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:01:58,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:01:58,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:01:58,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:01:58,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:01:58,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:01:58,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:01:58,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:01:58,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:01:58,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:01:58,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:01:58,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-10-24 11:01:58,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:01:58,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:01:58,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:01:58,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:01:58,873 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:01:58,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:00,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:02:00,393 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:02:00,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:00,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7845b57/5ee1106cf200437aabf48562747331c1/FLAGb1886f09a [2024-10-24 11:02:00,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7845b57/5ee1106cf200437aabf48562747331c1 [2024-10-24 11:02:00,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:02:00,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:02:00,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:00,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:02:00,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:02:00,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a98a521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00, skipping insertion in model container [2024-10-24 11:02:00,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:02:00,636 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-24 11:02:00,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:00,681 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:02:00,691 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-24 11:02:00,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:00,721 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:02:00,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00 WrapperNode [2024-10-24 11:02:00,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:00,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:00,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:02:00,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:02:00,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,814 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-10-24 11:02:00,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:00,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:02:00,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:02:00,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:02:00,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,863 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 11:02:00,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:02:00,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:02:00,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:02:00,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:02:00,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (1/1) ... [2024-10-24 11:02:00,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:00,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:02:00,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:02:00,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:02:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:02:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:02:00,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:02:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:02:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:02:00,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:02:01,026 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:02:01,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:02:01,210 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 11:02:01,210 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:02:01,237 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:02:01,238 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:02:01,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:01 BoogieIcfgContainer [2024-10-24 11:02:01,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:02:01,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:02:01,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:02:01,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:02:01,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:00" (1/3) ... [2024-10-24 11:02:01,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db343f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:01, skipping insertion in model container [2024-10-24 11:02:01,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:00" (2/3) ... [2024-10-24 11:02:01,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db343f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:01, skipping insertion in model container [2024-10-24 11:02:01,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:01" (3/3) ... [2024-10-24 11:02:01,245 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:01,257 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:02:01,258 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:02:01,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:02:01,313 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;@7107e373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:02:01,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:02:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 11:02:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 11:02:01,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:01,331 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:01,335 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:01,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:01,343 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2024-10-24 11:02:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:01,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944347451] [2024-10-24 11:02:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:01,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 11:02:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 11:02:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 11:02:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 11:02:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:02:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:02:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:02:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:02:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:02:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:01,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:01,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944347451] [2024-10-24 11:02:01,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944347451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:01,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:01,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:02:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791783994] [2024-10-24 11:02:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:01,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:02:01,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:02:01,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:01,651 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 11:02:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:01,680 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2024-10-24 11:02:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:02:01,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2024-10-24 11:02:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:01,689 INFO L225 Difference]: With dead ends: 83 [2024-10-24 11:02:01,689 INFO L226 Difference]: Without dead ends: 41 [2024-10-24 11:02:01,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:01,694 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:01,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:02:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-24 11:02:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-24 11:02:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 11:02:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-10-24 11:02:01,726 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2024-10-24 11:02:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:01,727 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-10-24 11:02:01,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-24 11:02:01,727 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-10-24 11:02:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:01,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:01,730 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:02:01,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:01,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2024-10-24 11:02:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124919278] [2024-10-24 11:02:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 11:02:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 11:02:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 11:02:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 11:02:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:02:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:02:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:02:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:02:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:02:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:03,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:03,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124919278] [2024-10-24 11:02:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124919278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:03,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:03,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:02:03,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504657057] [2024-10-24 11:02:03,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:03,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:02:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:02:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:02:03,146 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:03,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:03,485 INFO L93 Difference]: Finished difference Result 97 states and 135 transitions. [2024-10-24 11:02:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:02:03,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-24 11:02:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:03,488 INFO L225 Difference]: With dead ends: 97 [2024-10-24 11:02:03,489 INFO L226 Difference]: Without dead ends: 95 [2024-10-24 11:02:03,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:02:03,492 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:03,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 292 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:02:03,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-24 11:02:03,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2024-10-24 11:02:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 11:02:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-24 11:02:03,510 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 95 [2024-10-24 11:02:03,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:03,511 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-24 11:02:03,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-24 11:02:03,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:03,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:03,512 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:02:03,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1030415047, now seen corresponding path program 1 times [2024-10-24 11:02:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332410] [2024-10-24 11:02:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 11:02:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 11:02:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 11:02:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 11:02:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:02:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:02:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:02:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:02:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:02:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:04,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:04,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332410] [2024-10-24 11:02:04,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:04,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:04,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:02:04,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027071481] [2024-10-24 11:02:04,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:04,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:02:04,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:04,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:02:04,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:02:04,645 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:04,986 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2024-10-24 11:02:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:02:04,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-24 11:02:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:04,988 INFO L225 Difference]: With dead ends: 93 [2024-10-24 11:02:04,988 INFO L226 Difference]: Without dead ends: 91 [2024-10-24 11:02:04,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:02:04,989 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 81 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:04,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 274 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:02:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-24 11:02:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2024-10-24 11:02:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 11:02:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-24 11:02:04,999 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 95 [2024-10-24 11:02:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:04,999 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-24 11:02:04,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-24 11:02:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:05,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:05,001 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:05,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:02:05,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:05,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1839821255, now seen corresponding path program 1 times [2024-10-24 11:02:05,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:05,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145638121] [2024-10-24 11:02:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 11:02:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 11:02:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 11:02:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 11:02:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:02:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:02:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:02:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:02:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:02:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:05,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:05,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145638121] [2024-10-24 11:02:05,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145638121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:05,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:05,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:02:05,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8718256] [2024-10-24 11:02:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:05,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:02:05,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:05,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:02:05,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:02:05,666 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:06,001 INFO L93 Difference]: Finished difference Result 171 states and 246 transitions. [2024-10-24 11:02:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:02:06,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-24 11:02:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:06,003 INFO L225 Difference]: With dead ends: 171 [2024-10-24 11:02:06,003 INFO L226 Difference]: Without dead ends: 169 [2024-10-24 11:02:06,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:02:06,004 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 116 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:06,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 337 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:02:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-24 11:02:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 163. [2024-10-24 11:02:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 98 states have internal predecessors, (120), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 11:02:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 240 transitions. [2024-10-24 11:02:06,019 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 240 transitions. Word has length 95 [2024-10-24 11:02:06,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:06,019 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 240 transitions. [2024-10-24 11:02:06,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 240 transitions. [2024-10-24 11:02:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:06,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:06,021 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:06,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:02:06,021 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:06,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1839761673, now seen corresponding path program 1 times [2024-10-24 11:02:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:06,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990322521] [2024-10-24 11:02:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:06,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 11:02:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 11:02:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 11:02:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 11:02:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:02:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:02:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:02:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:02:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:02:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:06,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:06,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990322521] [2024-10-24 11:02:06,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990322521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:06,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:06,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:02:06,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052508399] [2024-10-24 11:02:06,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:06,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:02:06,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:06,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:02:06,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:02:06,965 INFO L87 Difference]: Start difference. First operand 163 states and 240 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:07,696 INFO L93 Difference]: Finished difference Result 205 states and 296 transitions. [2024-10-24 11:02:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:02:07,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-24 11:02:07,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:07,701 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:02:07,701 INFO L226 Difference]: Without dead ends: 203 [2024-10-24 11:02:07,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:02:07,702 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 65 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:07,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 284 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:02:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-24 11:02:07,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2024-10-24 11:02:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 120 states have internal predecessors, (143), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-24 11:02:07,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 291 transitions. [2024-10-24 11:02:07,723 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 291 transitions. Word has length 95 [2024-10-24 11:02:07,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:07,723 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 291 transitions. [2024-10-24 11:02:07,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 291 transitions. [2024-10-24 11:02:07,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:07,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:07,728 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:07,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:02:07,728 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:07,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash -350416259, now seen corresponding path program 1 times [2024-10-24 11:02:07,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:07,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909712018] [2024-10-24 11:02:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 11:02:07,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726326728] [2024-10-24 11:02:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:07,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:02:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:02:07,758 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) [2024-10-24 11:02:07,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:02:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:02:07,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 11:02:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:02:07,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 11:02:07,898 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 11:02:07,899 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 11:02:07,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 11:02:08,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 11:02:08,104 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 11:02:08,147 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 11:02:08,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:02:08 BoogieIcfgContainer [2024-10-24 11:02:08,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 11:02:08,150 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 11:02:08,150 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 11:02:08,150 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 11:02:08,150 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:01" (3/4) ... [2024-10-24 11:02:08,152 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 11:02:08,153 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 11:02:08,153 INFO L158 Benchmark]: Toolchain (without parser) took 7694.39ms. Allocated memory was 144.7MB in the beginning and 295.7MB in the end (delta: 151.0MB). Free memory was 117.2MB in the beginning and 163.3MB in the end (delta: -46.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,153 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:02:08,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.17ms. Allocated memory is still 144.7MB. Free memory was 116.7MB in the beginning and 102.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.82ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 99.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,154 INFO L158 Benchmark]: Boogie Preprocessor took 69.51ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 96.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,154 INFO L158 Benchmark]: RCFGBuilder took 349.80ms. Allocated memory is still 144.7MB. Free memory was 96.2MB in the beginning and 77.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,154 INFO L158 Benchmark]: TraceAbstraction took 6909.67ms. Allocated memory was 144.7MB in the beginning and 295.7MB in the end (delta: 151.0MB). Free memory was 76.9MB in the beginning and 164.4MB in the end (delta: -87.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,155 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 295.7MB. Free memory was 164.4MB in the beginning and 163.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 11:02:08,156 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.17ms. Allocated memory is still 144.7MB. Free memory was 116.7MB in the beginning and 102.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.82ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 99.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.51ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 96.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.80ms. Allocated memory is still 144.7MB. Free memory was 96.2MB in the beginning and 77.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6909.67ms. Allocated memory was 144.7MB in the beginning and 295.7MB in the end (delta: 151.0MB). Free memory was 76.9MB in the beginning and 164.4MB in the end (delta: -87.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 295.7MB. Free memory was 164.4MB in the beginning and 163.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 88. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] double var_1_12 = 128.4; [L32] double var_1_13 = 50.2; [L33] double var_1_14 = 3.8; [L34] double var_1_15 = 25.1; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L77] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L78] var_1_13 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L79] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L80] var_1_14 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L81] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L82] var_1_15 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L83] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L96] RET updateVariables() [L97] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L44] COND TRUE (var_1_1 == 16) || (var_1_11 < (10 / var_1_6)) [L45] var_1_5 = var_1_7 VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_1=16, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) VAL [isInitial=1, stepLocal_1=16, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L52] COND TRUE stepLocal_1 < ((var_1_9 - var_1_10) - 16) [L53] var_1_8 = ((((var_1_10) > (32)) ? (var_1_10) : (32))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] [L19] reach_error() VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 1243 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 835 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 408 mSDtfsCounter, 746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 2553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2100/2100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 11:02:08,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:02:10,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:02:10,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 11:02:10,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:02:10,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:02:10,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:02:10,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:02:10,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:02:10,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:02:10,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:02:10,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:02:10,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:02:10,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:02:10,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:02:10,297 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:02:10,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:02:10,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:02:10,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:02:10,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:02:10,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:02:10,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:02:10,303 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:02:10,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:02:10,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:02:10,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:10,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:02:10,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:02:10,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:02:10,305 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 11:02:10,307 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 11:02:10,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:02:10,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:02:10,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:02:10,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:02:10,308 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 11:02:10,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-10-24 11:02:10,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:02:10,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:02:10,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:02:10,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:02:10,596 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:02:10,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:11,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:02:12,129 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:02:12,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:12,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab367f32e/db7eea8ee81a4f2fa681b26289ed70ae/FLAG5816fc852 [2024-10-24 11:02:12,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab367f32e/db7eea8ee81a4f2fa681b26289ed70ae [2024-10-24 11:02:12,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:02:12,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:02:12,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:12,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:02:12,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:02:12,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2def11f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12, skipping insertion in model container [2024-10-24 11:02:12,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:02:12,308 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-24 11:02:12,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:12,364 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:02:12,373 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-24 11:02:12,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:12,417 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:02:12,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12 WrapperNode [2024-10-24 11:02:12,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:12,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:12,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:02:12,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:02:12,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,464 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-10-24 11:02:12,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:12,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:02:12,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:02:12,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:02:12,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,500 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 11:02:12,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:02:12,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:02:12,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:02:12,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:02:12,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (1/1) ... [2024-10-24 11:02:12,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:12,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:02:12,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:02:12,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:02:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:02:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 11:02:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:02:12,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:02:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:02:12,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:02:12,656 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:02:12,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:02:17,230 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 11:02:17,230 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:02:17,269 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:02:17,269 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:02:17,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:17 BoogieIcfgContainer [2024-10-24 11:02:17,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:02:17,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:02:17,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:02:17,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:02:17,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:12" (1/3) ... [2024-10-24 11:02:17,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7977d621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:17, skipping insertion in model container [2024-10-24 11:02:17,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:12" (2/3) ... [2024-10-24 11:02:17,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7977d621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:17, skipping insertion in model container [2024-10-24 11:02:17,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:17" (3/3) ... [2024-10-24 11:02:17,276 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-10-24 11:02:17,288 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:02:17,288 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:02:17,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:02:17,330 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;@68e0c7d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:02:17,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:02:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 11:02:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 11:02:17,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:17,341 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:17,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:17,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2024-10-24 11:02:17,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:17,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316814367] [2024-10-24 11:02:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:17,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:02:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:17,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 11:02:17,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 11:02:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:17,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 11:02:17,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:17,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:02:17,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:02:17,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316814367] [2024-10-24 11:02:17,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316814367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:17,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:17,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:02:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811348845] [2024-10-24 11:02:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:17,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:02:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:02:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:02:17,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:17,724 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:19,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 11:02:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:19,970 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2024-10-24 11:02:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:02:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2024-10-24 11:02:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:20,000 INFO L225 Difference]: With dead ends: 83 [2024-10-24 11:02:20,002 INFO L226 Difference]: Without dead ends: 41 [2024-10-24 11:02:20,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:20,012 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:20,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 11:02:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-24 11:02:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-24 11:02:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 11:02:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-10-24 11:02:20,054 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2024-10-24 11:02:20,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:20,054 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-10-24 11:02:20,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-10-24 11:02:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:20,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:20,057 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:20,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 11:02:20,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:02:20,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:20,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:20,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2024-10-24 11:02:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:20,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545573920] [2024-10-24 11:02:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:20,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:02:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:20,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 11:02:20,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 11:02:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:20,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 11:02:20,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 11:02:20,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:02:20,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:02:20,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545573920] [2024-10-24 11:02:20,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545573920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:20,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:20,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:02:20,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327008099] [2024-10-24 11:02:20,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:20,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:02:20,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:02:20,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:02:20,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:02:20,628 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:22,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 11:02:23,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 11:02:26,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 11:02:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:26,575 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2024-10-24 11:02:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:02:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-10-24 11:02:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:26,597 INFO L225 Difference]: With dead ends: 161 [2024-10-24 11:02:26,597 INFO L226 Difference]: Without dead ends: 121 [2024-10-24 11:02:26,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:02:26,598 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 135 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:26,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 166 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-10-24 11:02:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-24 11:02:26,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2024-10-24 11:02:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 68 states have internal predecessors, (82), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 11:02:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2024-10-24 11:02:26,653 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 95 [2024-10-24 11:02:26,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:26,653 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2024-10-24 11:02:26,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 11:02:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2024-10-24 11:02:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 11:02:26,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:26,655 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:02:26,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 11:02:26,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:02:26,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:26,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash 744532733, now seen corresponding path program 1 times [2024-10-24 11:02:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:26,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581730856] [2024-10-24 11:02:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:26,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 11:02:26,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:26,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 11:02:26,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 11:02:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 11:02:27,125 INFO L278 TraceCheckSpWp]: Computing forward predicates...