./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-15.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-15.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 f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:02:23,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:02:23,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:02:23,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:02:23,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:02:23,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:02:23,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:02:23,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:02:23,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:02:23,335 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:02:23,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:02:23,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:02:23,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:02:23,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:02:23,340 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:02:23,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:02:23,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:02:23,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:02:23,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:02:23,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:02:23,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:02:23,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:02:23,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:02:23,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:02:23,343 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:02:23,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:02:23,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:02:23,344 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:02:23,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:02:23,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:02:23,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:02:23,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:02:23,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:23,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:02:23,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:02:23,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:02:23,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:02:23,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:02:23,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:02:23,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:02:23,348 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:02:23,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:02:23,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 [2024-10-24 11:02:23,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:02:23,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:02:23,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:02:23,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:02:23,652 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:02:23,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:25,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:02:25,312 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:02:25,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:25,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a46a64e/b9dd91e83b114142bb2042f5a6e505e3/FLAG6e9059ea3 [2024-10-24 11:02:25,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a46a64e/b9dd91e83b114142bb2042f5a6e505e3 [2024-10-24 11:02:25,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:02:25,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:02:25,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:25,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:02:25,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:02:25,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:25" (1/1) ... [2024-10-24 11:02:25,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224c248a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:25, skipping insertion in model container [2024-10-24 11:02:25,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:25" (1/1) ... [2024-10-24 11:02:25,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:02:25,903 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-15.i[913,926] [2024-10-24 11:02:25,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:25,967 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:02:25,978 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-15.i[913,926] [2024-10-24 11:02:26,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:26,079 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:02:26,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26 WrapperNode [2024-10-24 11:02:26,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:26,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:26,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:02:26,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:02:26,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,131 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-10-24 11:02:26,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:26,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:02:26,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:02:26,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:02:26,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,158 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 11:02:26,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:02:26,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:02:26,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:02:26,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:02:26,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2024-10-24 11:02:26,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:26,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:02:26,209 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 11:02:26,212 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 11:02:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:02:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:02:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:02:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:02:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:02:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:02:26,338 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:02:26,340 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:02:26,573 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-24 11:02:26,573 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:02:26,631 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:02:26,633 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:02:26,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:26 BoogieIcfgContainer [2024-10-24 11:02:26,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:02:26,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:02:26,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:02:26,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:02:26,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:25" (1/3) ... [2024-10-24 11:02:26,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c46554a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:26, skipping insertion in model container [2024-10-24 11:02:26,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (2/3) ... [2024-10-24 11:02:26,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c46554a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:26, skipping insertion in model container [2024-10-24 11:02:26,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:26" (3/3) ... [2024-10-24 11:02:26,644 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:26,660 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:02:26,660 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:02:26,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:02:26,730 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;@3001de2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:02:26,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:02:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:26,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:26,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:26,744 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:26,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:26,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1285337844, now seen corresponding path program 1 times [2024-10-24 11:02:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:26,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307102838] [2024-10-24 11:02:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:26,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:26,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 11:02:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:02:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 11:02:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 11:02:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 11:02:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 11:02:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 11:02:27,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:27,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307102838] [2024-10-24 11:02:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307102838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:27,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:02:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898288989] [2024-10-24 11:02:27,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:27,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:02:27,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:02:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:27,097 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 11:02:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:27,131 INFO L93 Difference]: Finished difference Result 77 states and 130 transitions. [2024-10-24 11:02:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:02:27,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-10-24 11:02:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:27,141 INFO L225 Difference]: With dead ends: 77 [2024-10-24 11:02:27,141 INFO L226 Difference]: Without dead ends: 38 [2024-10-24 11:02:27,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 11:02:27,151 INFO L432 NwaCegarLoop]: 51 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, 51 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 11:02:27,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:02:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-24 11:02:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-24 11:02:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2024-10-24 11:02:27,186 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 78 [2024-10-24 11:02:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:27,187 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2024-10-24 11:02:27,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 11:02:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2024-10-24 11:02:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:27,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:27,190 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:27,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:02:27,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:27,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1063438060, now seen corresponding path program 1 times [2024-10-24 11:02:27,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:27,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552650054] [2024-10-24 11:02:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:27,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 11:02:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:02:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 11:02:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 11:02:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 11:02:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 11:02:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 11:02:27,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:27,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552650054] [2024-10-24 11:02:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552650054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:27,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:27,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:02:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34335385] [2024-10-24 11:02:27,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:27,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:02:27,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:27,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:02:27,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:02:27,798 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:27,857 INFO L93 Difference]: Finished difference Result 87 states and 123 transitions. [2024-10-24 11:02:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:02:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-10-24 11:02:27,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:27,864 INFO L225 Difference]: With dead ends: 87 [2024-10-24 11:02:27,866 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 11:02:27,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 11:02:27,869 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:27,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 107 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:02:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 11:02:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-10-24 11:02:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-10-24 11:02:27,886 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 78 [2024-10-24 11:02:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:27,890 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-10-24 11:02:27,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-10-24 11:02:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:27,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:27,893 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:27,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:02:27,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:27,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:27,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2029098796, now seen corresponding path program 1 times [2024-10-24 11:02:27,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:27,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622873605] [2024-10-24 11:02:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:27,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:02:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 11:02:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 11:02:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 11:02:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 11:02:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:02:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:02:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 11:02:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 11:02:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 11:02:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 11:02:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 11:02:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 11:02:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:02:28,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622873605] [2024-10-24 11:02:28,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622873605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:28,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:28,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:02:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600802887] [2024-10-24 11:02:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:28,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:02:28,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:02:28,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:02:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:02:28,104 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:28,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:28,148 INFO L93 Difference]: Finished difference Result 119 states and 167 transitions. [2024-10-24 11:02:28,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:02:28,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-10-24 11:02:28,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:28,151 INFO L225 Difference]: With dead ends: 119 [2024-10-24 11:02:28,151 INFO L226 Difference]: Without dead ends: 79 [2024-10-24 11:02:28,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:02:28,155 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:28,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 107 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:02:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-24 11:02:28,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-10-24 11:02:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 11:02:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2024-10-24 11:02:28,182 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 78 [2024-10-24 11:02:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:28,183 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2024-10-24 11:02:28,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2024-10-24 11:02:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 11:02:28,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:28,185 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:28,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:02:28,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:28,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:28,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1802169699, now seen corresponding path program 1 times [2024-10-24 11:02:28,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:02:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834292123] [2024-10-24 11:02:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:02:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:02:28,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 11:02:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 11:02:28,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 11:02:28,456 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 11:02:28,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 11:02:28,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:02:28,464 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-24 11:02:28,545 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 11:02:28,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:02:28 BoogieIcfgContainer [2024-10-24 11:02:28,550 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 11:02:28,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 11:02:28,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 11:02:28,551 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 11:02:28,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:26" (3/4) ... [2024-10-24 11:02:28,554 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 11:02:28,556 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 11:02:28,557 INFO L158 Benchmark]: Toolchain (without parser) took 2866.79ms. Allocated memory is still 153.1MB. Free memory was 81.7MB in the beginning and 101.1MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:02:28,558 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 153.1MB. Free memory was 126.5MB in the beginning and 126.3MB in the end (delta: 186.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:02:28,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.01ms. Allocated memory is still 153.1MB. Free memory was 81.5MB in the beginning and 125.2MB in the end (delta: -43.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-10-24 11:02:28,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.71ms. Allocated memory is still 153.1MB. Free memory was 125.2MB in the beginning and 123.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 11:02:28,561 INFO L158 Benchmark]: Boogie Preprocessor took 39.90ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 11:02:28,561 INFO L158 Benchmark]: RCFGBuilder took 461.65ms. Allocated memory is still 153.1MB. Free memory was 121.0MB in the beginning and 103.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 11:02:28,562 INFO L158 Benchmark]: TraceAbstraction took 1913.98ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 102.2MB in the end (delta: 673.9kB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-10-24 11:02:28,562 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 101.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 11:02:28,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 153.1MB. Free memory was 126.5MB in the beginning and 126.3MB in the end (delta: 186.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.01ms. Allocated memory is still 153.1MB. Free memory was 81.5MB in the beginning and 125.2MB in the end (delta: -43.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.71ms. Allocated memory is still 153.1MB. Free memory was 125.2MB in the beginning and 123.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.90ms. Allocated memory is still 153.1MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.65ms. Allocated memory is still 153.1MB. Free memory was 121.0MB in the beginning and 103.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1913.98ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 102.2MB in the end (delta: 673.9kB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 101.1MB in the end (delta: 1.0MB). There was no memory consumed. 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 91, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -128; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_7 = 8; [L26] unsigned long int var_1_8 = 1; [L27] unsigned long int var_1_9 = 1885310857; [L28] signed long int var_1_10 = -10; [L29] double var_1_11 = 32.6; [L30] double var_1_12 = 9.75; [L31] double var_1_13 = 5.1; [L32] double var_1_14 = 128.1; [L33] double var_1_15 = 63.9; [L34] signed long int last_1_var_1_10 = -10; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L67] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L68] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L68] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L72] var_1_7 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L73] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L74] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L74] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=1885310857] [L75] var_1_9 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_9 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L76] RET assume_abort_if_not(var_1_9 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L77] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L77] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L78] var_1_12 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L79] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L80] var_1_13 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L81] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L82] var_1_14 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L83] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L84] var_1_15 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L85] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=1, var_1_9=5368709120] [L99] RET updateVariables() [L100] CALL step() [L38] COND TRUE \read(var_1_2) [L39] var_1_8 = ((1514707036u + ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))) - last_1_var_1_10) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L43] COND TRUE \read(var_1_2) [L44] var_1_10 = (var_1_8 + ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518425, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L46] unsigned char stepLocal_1 = var_1_2; [L47] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_10=-10, stepLocal_0=-1706518425, stepLocal_1=-255, var_1_10=-1706518425, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L48] COND TRUE stepLocal_1 || ((~ var_1_10) >= var_1_10) VAL [isInitial=1, last_1_var_1_10=-10, stepLocal_0=-1706518425, var_1_10=-1706518425, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L49] COND FALSE !(stepLocal_0 < var_1_8) [L54] var_1_1 = 2 VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518425, var_1_11=163/5, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L59] COND TRUE var_1_1 >= var_1_1 [L60] var_1_11 = (var_1_12 - (((((var_1_13 + var_1_14)) > (var_1_15)) ? ((var_1_13 + var_1_14)) : (var_1_15)))) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518425, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L100] RET step() [L101] CALL, EXPR property() [L91-L92] return ((((var_1_2 || ((~ var_1_10) >= var_1_10)) ? ((var_1_10 < var_1_8) ? ((! var_1_6) ? (var_1_1 == ((signed char) var_1_7)) : 1) : (var_1_1 == ((signed char) 2))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_2 ? (var_1_8 == ((unsigned long int) ((1514707036u + ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))) - last_1_var_1_10))) : (var_1_8 == ((unsigned long int) ((((last_1_var_1_10) > (var_1_9)) ? (last_1_var_1_10) : (var_1_9))))))) && (var_1_2 ? (var_1_10 == ((signed long int) (var_1_8 + ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))))) : 1)) && ((var_1_1 >= var_1_1) ? (var_1_11 == ((double) (var_1_12 - (((((var_1_13 + var_1_14)) > (var_1_15)) ? ((var_1_13 + var_1_14)) : (var_1_15)))))) : (var_1_11 == ((double) ((((var_1_14) > (var_1_13)) ? (var_1_14) : (var_1_13)))))) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518425, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518425, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=-1, var_1_8=6883416166, var_1_9=5368709120] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 164 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 313 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 792/792 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 11:02:28,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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-15.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 f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:02:30,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:02:30,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 11:02:30,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:02:30,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:02:30,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:02:30,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:02:30,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:02:30,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:02:30,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:02:30,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:02:30,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:02:30,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:02:30,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:02:30,979 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:02:30,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:02:30,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:02:30,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:02:30,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:02:30,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:02:30,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:02:30,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:02:30,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:02:30,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 11:02:30,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 11:02:30,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:02:30,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 11:02:30,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:02:30,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:02:30,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:02:30,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:02:30,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:02:30,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:02:30,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:02:30,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:30,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:02:30,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:02:30,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:02:30,988 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 11:02:30,988 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 11:02:30,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:02:30,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:02:30,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:02:30,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:02:30,990 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 11:02:30,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 [2024-10-24 11:02:31,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:02:31,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:02:31,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:02:31,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:02:31,320 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:02:31,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:32,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:02:33,124 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:02:33,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:33,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb345e882/a247826ec71648b5802304b45ce7737f/FLAG42e6ce126 [2024-10-24 11:02:33,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb345e882/a247826ec71648b5802304b45ce7737f [2024-10-24 11:02:33,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:02:33,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:02:33,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:33,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:02:33,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:02:33,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c10620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33, skipping insertion in model container [2024-10-24 11:02:33,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:02:33,733 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-15.i[913,926] [2024-10-24 11:02:33,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:33,808 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:02:33,820 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-15.i[913,926] [2024-10-24 11:02:33,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:02:33,874 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:02:33,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33 WrapperNode [2024-10-24 11:02:33,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:02:33,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:33,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:02:33,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:02:33,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,948 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-10-24 11:02:33,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:02:33,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:02:33,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:02:33,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:02:33,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,983 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 11:02:33,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:33,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:34,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:34,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:02:34,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:02:34,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:02:34,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:02:34,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (1/1) ... [2024-10-24 11:02:34,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:02:34,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:02:34,037 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 11:02:34,040 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 11:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 11:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:02:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:02:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:02:34,151 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:02:34,152 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:02:35,819 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-24 11:02:35,820 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:02:35,878 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:02:35,879 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:02:35,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:35 BoogieIcfgContainer [2024-10-24 11:02:35,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:02:35,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:02:35,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:02:35,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:02:35,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:33" (1/3) ... [2024-10-24 11:02:35,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67748c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:35, skipping insertion in model container [2024-10-24 11:02:35,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:33" (2/3) ... [2024-10-24 11:02:35,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67748c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:35, skipping insertion in model container [2024-10-24 11:02:35,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:35" (3/3) ... [2024-10-24 11:02:35,892 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-15.i [2024-10-24 11:02:35,907 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:02:35,908 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:02:35,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:02:35,967 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;@1cf9d8f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:02:35,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:02:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:35,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:35,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:35,979 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:35,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:35,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1285337844, now seen corresponding path program 1 times [2024-10-24 11:02:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:36,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196538675] [2024-10-24 11:02:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:36,004 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 11:02:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:36,008 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 11:02:36,011 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 11:02:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:36,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 11:02:36,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:36,308 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-24 11:02:36,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:02:36,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:02:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196538675] [2024-10-24 11:02:36,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196538675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:36,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:36,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:02:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073257587] [2024-10-24 11:02:36,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:36,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:02:36,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:02:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:02:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:02:36,344 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 11:02:36,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:36,652 INFO L93 Difference]: Finished difference Result 77 states and 130 transitions. [2024-10-24 11:02:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:02:36,665 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-10-24 11:02:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:36,670 INFO L225 Difference]: With dead ends: 77 [2024-10-24 11:02:36,670 INFO L226 Difference]: Without dead ends: 38 [2024-10-24 11:02:36,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 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 11:02:36,676 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:36,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:02:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-24 11:02:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-24 11:02:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2024-10-24 11:02:36,708 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 78 [2024-10-24 11:02:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:36,709 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2024-10-24 11:02:36,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-24 11:02:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2024-10-24 11:02:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:36,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:36,713 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:36,721 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 11:02:36,913 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 11:02:36,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:36,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:36,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1063438060, now seen corresponding path program 1 times [2024-10-24 11:02:36,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:36,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434289747] [2024-10-24 11:02:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:36,916 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 11:02:36,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:36,934 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 11:02:36,937 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 11:02:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:37,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 11:02:37,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-10-24 11:02:37,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:02:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 11:02:37,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:02:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434289747] [2024-10-24 11:02:37,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434289747] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 11:02:37,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 11:02:37,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-24 11:02:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661892018] [2024-10-24 11:02:37,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:37,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:02:37,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:02:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:02:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:02:37,715 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:38,785 INFO L93 Difference]: Finished difference Result 87 states and 123 transitions. [2024-10-24 11:02:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:02:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-10-24 11:02:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:38,799 INFO L225 Difference]: With dead ends: 87 [2024-10-24 11:02:38,799 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 11:02:38,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:02:38,801 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:38,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 148 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 11:02:38,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 11:02:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-10-24 11:02:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 11:02:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-10-24 11:02:38,810 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 78 [2024-10-24 11:02:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:38,812 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-10-24 11:02:38,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-10-24 11:02:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 11:02:38,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:38,814 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:38,824 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 11:02:39,014 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 11:02:39,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:39,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2029098796, now seen corresponding path program 1 times [2024-10-24 11:02:39,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:39,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866475866] [2024-10-24 11:02:39,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:39,017 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 11:02:39,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:39,019 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 11:02:39,020 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 11:02:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:39,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 11:02:39,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:02:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 11:02:39,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:02:39,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 11:02:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866475866] [2024-10-24 11:02:39,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866475866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:02:39,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:02:39,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:02:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34211784] [2024-10-24 11:02:39,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:02:39,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:02:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 11:02:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:02:39,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:02:39,500 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:02:40,161 INFO L93 Difference]: Finished difference Result 119 states and 167 transitions. [2024-10-24 11:02:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:02:40,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-10-24 11:02:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:02:40,163 INFO L225 Difference]: With dead ends: 119 [2024-10-24 11:02:40,163 INFO L226 Difference]: Without dead ends: 79 [2024-10-24 11:02:40,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:02:40,165 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:02:40,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 107 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:02:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-24 11:02:40,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-10-24 11:02:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 11:02:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2024-10-24 11:02:40,193 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 78 [2024-10-24 11:02:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:02:40,194 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2024-10-24 11:02:40,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-24 11:02:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2024-10-24 11:02:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 11:02:40,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:02:40,198 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:40,208 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 (4)] Ended with exit code 0 [2024-10-24 11:02:40,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 11:02:40,399 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:02:40,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:02:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1802169699, now seen corresponding path program 1 times [2024-10-24 11:02:40,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 11:02:40,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026069470] [2024-10-24 11:02:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:02:40,401 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 11:02:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 11:02:40,404 INFO L229 MonitoredProcess]: Starting monitored process 5 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 11:02:40,405 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 (5)] Waiting until timeout for monitored process [2024-10-24 11:02:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:02:40,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 11:02:40,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:03:46,071 WARN L286 SmtUtils]: Spent 28.67s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)