./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-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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-83.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 adf694b6ddef665d6d08615d55edd3b888b46a164390930323ad37ea28078730 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:18:42,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:18:43,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:18:43,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:18:43,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:18:43,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:18:43,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:18:43,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:18:43,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:18:43,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:18:43,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:18:43,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:18:43,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:18:43,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:18:43,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:18:43,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:18:43,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:18:43,059 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:18:43,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:18:43,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:18:43,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:18:43,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:18:43,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:18:43,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:18:43,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:18:43,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:18:43,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:18:43,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:18:43,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:18:43,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:18:43,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:18:43,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:18:43,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:18:43,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:18:43,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:18:43,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:18:43,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:18:43,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adf694b6ddef665d6d08615d55edd3b888b46a164390930323ad37ea28078730 [2024-11-20 08:18:43,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:18:43,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:18:43,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:18:43,301 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:18:43,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:18:43,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:44,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:18:44,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:18:44,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:44,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53eb5b1b0/638bd3a77cd74e1caa25f2bd58e0fcf3/FLAG2b27d1789 [2024-11-20 08:18:44,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53eb5b1b0/638bd3a77cd74e1caa25f2bd58e0fcf3 [2024-11-20 08:18:44,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:18:44,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:18:44,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:18:44,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:18:44,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:18:44,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:44" (1/1) ... [2024-11-20 08:18:44,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d568ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:44, skipping insertion in model container [2024-11-20 08:18:44,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:44" (1/1) ... [2024-11-20 08:18:44,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:18:45,107 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i[913,926] [2024-11-20 08:18:45,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:18:45,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:18:45,183 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i[913,926] [2024-11-20 08:18:45,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:18:45,231 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:18:45,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45 WrapperNode [2024-11-20 08:18:45,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:18:45,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:18:45,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:18:45,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:18:45,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,291 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2024-11-20 08:18:45,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:18:45,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:18:45,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:18:45,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:18:45,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,331 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 08:18:45,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:18:45,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:18:45,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:18:45,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:18:45,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (1/1) ... [2024-11-20 08:18:45,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:18:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:18:45,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:18:45,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:18:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:18:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:18:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:18:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:18:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:18:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:18:45,522 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:18:45,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:18:45,828 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-20 08:18:45,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:18:45,842 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:18:45,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:18:45,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:45 BoogieIcfgContainer [2024-11-20 08:18:45,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:18:45,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:18:45,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:18:45,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:18:45,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:18:44" (1/3) ... [2024-11-20 08:18:45,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8e38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:45, skipping insertion in model container [2024-11-20 08:18:45,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:45" (2/3) ... [2024-11-20 08:18:45,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8e38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:45, skipping insertion in model container [2024-11-20 08:18:45,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:45" (3/3) ... [2024-11-20 08:18:45,850 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:45,864 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:18:45,864 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:18:45,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:18:45,930 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;@56ad798d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:18:45,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:18:45,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 08:18:45,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:45,944 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:45,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:45,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2107287054, now seen corresponding path program 1 times [2024-11-20 08:18:45,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:45,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570907544] [2024-11-20 08:18:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:45,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:46,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:46,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570907544] [2024-11-20 08:18:46,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570907544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:46,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:46,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:18:46,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139956751] [2024-11-20 08:18:46,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:46,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:18:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:46,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:18:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:18:46,262 INFO L87 Difference]: Start difference. First operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:46,284 INFO L93 Difference]: Finished difference Result 105 states and 169 transitions. [2024-11-20 08:18:46,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:18:46,286 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 78 [2024-11-20 08:18:46,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:46,292 INFO L225 Difference]: With dead ends: 105 [2024-11-20 08:18:46,293 INFO L226 Difference]: Without dead ends: 52 [2024-11-20 08:18:46,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:18:46,299 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:46,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:18:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-20 08:18:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-20 08:18:46,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:46,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2024-11-20 08:18:46,331 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 78 [2024-11-20 08:18:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:46,331 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-11-20 08:18:46,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2024-11-20 08:18:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 08:18:46,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:46,335 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:46,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:18:46,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:46,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash -580827272, now seen corresponding path program 1 times [2024-11-20 08:18:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:46,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722831702] [2024-11-20 08:18:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:46,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:46,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722831702] [2024-11-20 08:18:46,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722831702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:46,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:46,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 08:18:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989724380] [2024-11-20 08:18:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:46,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 08:18:46,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 08:18:46,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:18:46,547 INFO L87 Difference]: Start difference. First operand 52 states and 74 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:46,576 INFO L93 Difference]: Finished difference Result 124 states and 178 transitions. [2024-11-20 08:18:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 08:18:46,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2024-11-20 08:18:46,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:46,578 INFO L225 Difference]: With dead ends: 124 [2024-11-20 08:18:46,579 INFO L226 Difference]: Without dead ends: 75 [2024-11-20 08:18:46,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:18:46,580 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 66 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:46,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 128 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:18:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-20 08:18:46,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 52. [2024-11-20 08:18:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2024-11-20 08:18:46,588 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 78 [2024-11-20 08:18:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:46,589 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2024-11-20 08:18:46,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2024-11-20 08:18:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 08:18:46,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:46,591 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:46,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:18:46,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:46,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash 39834531, now seen corresponding path program 1 times [2024-11-20 08:18:46,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:46,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671200747] [2024-11-20 08:18:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:46,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:46,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671200747] [2024-11-20 08:18:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671200747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:46,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:18:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497148601] [2024-11-20 08:18:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:46,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:18:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:18:46,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:18:46,842 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:46,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:46,906 INFO L93 Difference]: Finished difference Result 103 states and 144 transitions. [2024-11-20 08:18:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:18:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 79 [2024-11-20 08:18:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:46,910 INFO L225 Difference]: With dead ends: 103 [2024-11-20 08:18:46,910 INFO L226 Difference]: Without dead ends: 54 [2024-11-20 08:18:46,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:18:46,911 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 7 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:46,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 181 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:18:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-20 08:18:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-20 08:18:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2024-11-20 08:18:46,922 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 79 [2024-11-20 08:18:46,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:46,922 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2024-11-20 08:18:46,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2024-11-20 08:18:46,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-20 08:18:46,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:46,930 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:46,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:18:46,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:46,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1817231564, now seen corresponding path program 1 times [2024-11-20 08:18:46,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:46,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061628398] [2024-11-20 08:18:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:46,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:48,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:48,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061628398] [2024-11-20 08:18:48,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061628398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:48,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:48,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:18:48,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282351993] [2024-11-20 08:18:48,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:48,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:18:48,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:18:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:18:48,658 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:49,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:49,024 INFO L93 Difference]: Finished difference Result 136 states and 183 transitions. [2024-11-20 08:18:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:18:49,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 80 [2024-11-20 08:18:49,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:49,026 INFO L225 Difference]: With dead ends: 136 [2024-11-20 08:18:49,026 INFO L226 Difference]: Without dead ends: 85 [2024-11-20 08:18:49,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:18:49,027 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 96 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:49,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:18:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-20 08:18:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2024-11-20 08:18:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2024-11-20 08:18:49,037 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 80 [2024-11-20 08:18:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:49,038 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2024-11-20 08:18:49,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2024-11-20 08:18:49,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 08:18:49,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:49,044 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:49,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:18:49,045 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:49,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:49,045 INFO L85 PathProgramCache]: Analyzing trace with hash -797720763, now seen corresponding path program 1 times [2024-11-20 08:18:49,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:49,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787381555] [2024-11-20 08:18:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:49,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:49,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787381555] [2024-11-20 08:18:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787381555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:49,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:18:49,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117027063] [2024-11-20 08:18:49,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:49,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:18:49,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:49,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:18:49,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:18:49,894 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:50,214 INFO L93 Difference]: Finished difference Result 166 states and 220 transitions. [2024-11-20 08:18:50,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:18:50,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 81 [2024-11-20 08:18:50,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:50,215 INFO L225 Difference]: With dead ends: 166 [2024-11-20 08:18:50,215 INFO L226 Difference]: Without dead ends: 98 [2024-11-20 08:18:50,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:18:50,216 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 38 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:50,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 276 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:18:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-20 08:18:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 71. [2024-11-20 08:18:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2024-11-20 08:18:50,223 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 81 [2024-11-20 08:18:50,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:50,224 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2024-11-20 08:18:50,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2024-11-20 08:18:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 08:18:50,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:50,225 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:50,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:18:50,225 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:50,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:50,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1808838013, now seen corresponding path program 1 times [2024-11-20 08:18:50,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:50,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602504216] [2024-11-20 08:18:50,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:50,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:51,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:51,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602504216] [2024-11-20 08:18:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602504216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:51,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:51,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:18:51,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117066178] [2024-11-20 08:18:51,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:51,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:18:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:18:51,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:18:51,830 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:52,535 INFO L93 Difference]: Finished difference Result 165 states and 218 transitions. [2024-11-20 08:18:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:18:52,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 81 [2024-11-20 08:18:52,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:52,540 INFO L225 Difference]: With dead ends: 165 [2024-11-20 08:18:52,540 INFO L226 Difference]: Without dead ends: 97 [2024-11-20 08:18:52,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:18:52,541 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 70 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:52,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 305 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:18:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-20 08:18:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2024-11-20 08:18:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions. [2024-11-20 08:18:52,561 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 76 transitions. Word has length 81 [2024-11-20 08:18:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:52,561 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 76 transitions. [2024-11-20 08:18:52,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:52,562 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 76 transitions. [2024-11-20 08:18:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 08:18:52,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:52,562 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:52,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:18:52,563 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:52,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:52,570 INFO L85 PathProgramCache]: Analyzing trace with hash -973072421, now seen corresponding path program 1 times [2024-11-20 08:18:52,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:52,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002535159] [2024-11-20 08:18:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:52,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:52,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:52,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002535159] [2024-11-20 08:18:52,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002535159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:52,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:52,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 08:18:52,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758432164] [2024-11-20 08:18:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:52,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 08:18:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 08:18:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:18:52,711 INFO L87 Difference]: Start difference. First operand 58 states and 76 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:52,751 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2024-11-20 08:18:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 08:18:52,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 82 [2024-11-20 08:18:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:52,752 INFO L225 Difference]: With dead ends: 134 [2024-11-20 08:18:52,752 INFO L226 Difference]: Without dead ends: 79 [2024-11-20 08:18:52,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:18:52,753 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:52,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 105 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:18:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-20 08:18:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2024-11-20 08:18:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2024-11-20 08:18:52,766 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 82 [2024-11-20 08:18:52,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:52,766 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-11-20 08:18:52,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 08:18:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2024-11-20 08:18:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 08:18:52,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:52,769 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:52,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:18:52,769 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:52,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2091972774, now seen corresponding path program 1 times [2024-11-20 08:18:52,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:52,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718245779] [2024-11-20 08:18:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:52,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:18:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 08:18:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 08:18:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 08:18:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 08:18:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 08:18:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 08:18:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 08:18:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 08:18:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 08:18:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 08:18:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-20 08:18:52,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:18:52,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718245779] [2024-11-20 08:18:52,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718245779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:52,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:52,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:18:52,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177156861] [2024-11-20 08:18:52,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:52,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:18:52,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:18:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:18:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:18:52,842 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:52,914 INFO L93 Difference]: Finished difference Result 150 states and 197 transitions. [2024-11-20 08:18:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:18:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2024-11-20 08:18:52,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:52,922 INFO L225 Difference]: With dead ends: 150 [2024-11-20 08:18:52,922 INFO L226 Difference]: Without dead ends: 90 [2024-11-20 08:18:52,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:18:52,923 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 104 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:52,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 108 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:18:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-20 08:18:52,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 63. [2024-11-20 08:18:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:52,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2024-11-20 08:18:52,930 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 82 [2024-11-20 08:18:52,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:52,930 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2024-11-20 08:18:52,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2024-11-20 08:18:52,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-20 08:18:52,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:52,931 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:52,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:18:52,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:52,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1881773735, now seen corresponding path program 1 times [2024-11-20 08:18:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:18:52,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097652699] [2024-11-20 08:18:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:18:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 08:18:52,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669039006] [2024-11-20 08:18:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:52,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:18:52,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:18:52,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:18:52,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:18:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 08:18:53,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 08:18:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 08:18:53,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 08:18:53,118 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 08:18:53,119 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-20 08:18:53,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 08:18:53,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:18:53,327 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:53,388 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 08:18:53,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:18:53 BoogieIcfgContainer [2024-11-20 08:18:53,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 08:18:53,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 08:18:53,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 08:18:53,391 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 08:18:53,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:45" (3/4) ... [2024-11-20 08:18:53,394 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 08:18:53,395 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 08:18:53,395 INFO L158 Benchmark]: Toolchain (without parser) took 8465.95ms. Allocated memory was 153.1MB in the beginning and 325.1MB in the end (delta: 172.0MB). Free memory was 97.3MB in the beginning and 208.1MB in the end (delta: -110.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,395 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 08:18:53,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.27ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 82.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.03ms. Allocated memory is still 153.1MB. Free memory was 82.7MB in the beginning and 79.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,396 INFO L158 Benchmark]: Boogie Preprocessor took 62.40ms. Allocated memory is still 153.1MB. Free memory was 79.4MB in the beginning and 75.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,396 INFO L158 Benchmark]: RCFGBuilder took 487.67ms. Allocated memory was 153.1MB in the beginning and 224.4MB in the end (delta: 71.3MB). Free memory was 75.2MB in the beginning and 181.0MB in the end (delta: -105.8MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,397 INFO L158 Benchmark]: TraceAbstraction took 7546.48ms. Allocated memory was 224.4MB in the beginning and 325.1MB in the end (delta: 100.7MB). Free memory was 181.0MB in the beginning and 208.1MB in the end (delta: -27.1MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2024-11-20 08:18:53,397 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 325.1MB. Free memory is still 208.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 08:18:53,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.27ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 82.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.03ms. Allocated memory is still 153.1MB. Free memory was 82.7MB in the beginning and 79.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.40ms. Allocated memory is still 153.1MB. Free memory was 79.4MB in the beginning and 75.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 487.67ms. Allocated memory was 153.1MB in the beginning and 224.4MB in the end (delta: 71.3MB). Free memory was 75.2MB in the beginning and 181.0MB in the end (delta: -105.8MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7546.48ms. Allocated memory was 224.4MB in the beginning and 325.1MB in the end (delta: 100.7MB). Free memory was 181.0MB in the beginning and 208.1MB in the end (delta: -27.1MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 325.1MB. Free memory is still 208.1MB. 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 89, overapproximation of bitwiseOr at line 52. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 25; [L25] unsigned char var_1_4 = 4; [L26] double var_1_8 = 127.625; [L27] double var_1_10 = 0.8; [L28] double var_1_11 = 128.75; [L29] double var_1_12 = 24.8; [L30] signed short int var_1_14 = -128; [L31] signed char var_1_15 = 64; [L32] signed char var_1_16 = 5; [L33] double var_1_17 = 1.5; [L34] unsigned short int last_1_var_1_1 = 128; VAL [isInitial=0, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L86] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=1021/8] [L70] var_1_3 = __VERIFIER_nondet_ushort() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=1021/8] [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=1021/8] [L72] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=1021/8] [L72] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=4, var_1_8=1021/8] [L73] var_1_4 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L75] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L75] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_8=1021/8] [L76] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L76] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=4/5, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L77] var_1_10 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L78] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=128, var_1_11=515/4, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L79] var_1_11 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L80] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L81] var_1_16 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L82] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L83] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L83] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_1=128, var_1_12=124/5, var_1_14=-128, var_1_15=64, var_1_16=1, var_1_17=3/2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L97] RET updateVariables() [L98] CALL step() [L38] var_1_14 = 200 [L39] var_1_15 = var_1_16 [L40] var_1_17 = var_1_10 [L41] signed long int stepLocal_0 = var_1_3 / var_1_4; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=128, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L42] COND TRUE \read(var_1_2) [L43] var_1_1 = (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L51] signed long int stepLocal_2 = var_1_3 + var_1_1; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, stepLocal_2=0, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L52] EXPR var_1_14 ^ var_1_15 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, stepLocal_2=0, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=1021/8] [L52] signed long int stepLocal_1 = var_1_14 ^ var_1_15; [L53] COND FALSE !(var_1_15 <= stepLocal_2) [L60] var_1_8 = var_1_10 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, stepLocal_1=1, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L62] COND FALSE !(var_1_15 > var_1_15) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=0, stepLocal_1=1, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((double) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((double) var_1_11))) : (var_1_8 == ((double) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L89] EXPR (var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((double) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((double) var_1_11))) : (var_1_8 == ((double) var_1_10)) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L89] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((double) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((double) var_1_11))) : (var_1_8 == ((double) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L89-L90] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((double) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((double) var_1_11))) : (var_1_8 == ((double) var_1_10)))) && ((var_1_15 > var_1_15) ? (var_1_12 == ((double) ((((var_1_11) < (var_1_10)) ? (var_1_11) : (var_1_10))))) : 1)) && (var_1_14 == ((signed short int) 200))) && (var_1_15 == ((signed char) var_1_16))) && (var_1_17 == ((double) var_1_10)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=128, var_1_10=2, var_1_12=124/5, var_1_14=200, var_1_15=1, var_1_16=1, var_1_17=2, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=1, var_1_8=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 408 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 408 mSDsluCounter, 1335 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 759 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 619 IncrementalHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 576 mSDtfsCounter, 619 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=4, InterpolantAutomatonStates: 33, 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, 8 MinimizatonAttempts, 146 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 633 ConstructedInterpolants, 0 QuantifiedInterpolants, 3035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 1760/1760 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 [2024-11-20 08:18:53,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.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 adf694b6ddef665d6d08615d55edd3b888b46a164390930323ad37ea28078730 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:18:55,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:18:55,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-20 08:18:55,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:18:55,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:18:55,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:18:55,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:18:55,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:18:55,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:18:55,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:18:55,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:18:55,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:18:55,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:18:55,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:18:55,754 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:18:55,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:18:55,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:18:55,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:18:55,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:18:55,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:18:55,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:18:55,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:18:55,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:18:55,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 08:18:55,757 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 08:18:55,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:18:55,757 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 08:18:55,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:18:55,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:18:55,758 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:18:55,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:18:55,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:18:55,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:18:55,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:18:55,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:18:55,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:18:55,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:18:55,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:18:55,761 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 08:18:55,761 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 08:18:55,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:18:55,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:18:55,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:18:55,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:18:55,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adf694b6ddef665d6d08615d55edd3b888b46a164390930323ad37ea28078730 [2024-11-20 08:18:56,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:18:56,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:18:56,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:18:56,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:18:56,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:18:56,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:57,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:18:57,678 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:18:57,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:57,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e57a35be/a9460d0388364c56a7fb32a4eb15a653/FLAGa0c180e7a [2024-11-20 08:18:57,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e57a35be/a9460d0388364c56a7fb32a4eb15a653 [2024-11-20 08:18:57,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:18:57,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:18:57,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:18:57,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:18:57,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:18:57,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:57" (1/1) ... [2024-11-20 08:18:57,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436f05f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:57, skipping insertion in model container [2024-11-20 08:18:57,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:57" (1/1) ... [2024-11-20 08:18:57,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:18:57,915 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i[913,926] [2024-11-20 08:18:57,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:18:57,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:18:57,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-83.i[913,926] [2024-11-20 08:18:58,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:18:58,030 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:18:58,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58 WrapperNode [2024-11-20 08:18:58,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:18:58,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:18:58,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:18:58,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:18:58,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,075 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-20 08:18:58,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:18:58,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:18:58,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:18:58,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:18:58,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,110 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 08:18:58,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:18:58,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:18:58,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:18:58,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:18:58,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (1/1) ... [2024-11-20 08:18:58,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:18:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:18:58,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:18:58,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:18:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:18:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 08:18:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:18:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:18:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:18:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:18:58,278 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:18:58,281 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:18:58,931 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-20 08:18:58,931 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:18:58,950 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:18:58,959 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:18:58,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:58 BoogieIcfgContainer [2024-11-20 08:18:58,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:18:58,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:18:58,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:18:58,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:18:58,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:18:57" (1/3) ... [2024-11-20 08:18:58,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e49d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:58, skipping insertion in model container [2024-11-20 08:18:58,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:58" (2/3) ... [2024-11-20 08:18:58,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e49d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:58, skipping insertion in model container [2024-11-20 08:18:58,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:58" (3/3) ... [2024-11-20 08:18:58,974 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-83.i [2024-11-20 08:18:59,006 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:18:59,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:18:59,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:18:59,083 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;@56b25b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:18:59,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:18:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 08:18:59,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:59,096 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:59,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:59,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -599153747, now seen corresponding path program 1 times [2024-11-20 08:18:59,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 08:18:59,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859173158] [2024-11-20 08:18:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:59,116 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 [2024-11-20 08:18:59,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 08:18:59,121 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) [2024-11-20 08:18:59,123 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 [2024-11-20 08:18:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:59,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-20 08:18:59,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:18:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-20 08:18:59,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 08:18:59,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 08:18:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859173158] [2024-11-20 08:18:59,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859173158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:18:59,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:18:59,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:18:59,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068345839] [2024-11-20 08:18:59,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:18:59,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:18:59,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 08:18:59,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:18:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:18:59,428 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:18:59,448 INFO L93 Difference]: Finished difference Result 77 states and 125 transitions. [2024-11-20 08:18:59,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:18:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2024-11-20 08:18:59,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:18:59,458 INFO L225 Difference]: With dead ends: 77 [2024-11-20 08:18:59,458 INFO L226 Difference]: Without dead ends: 38 [2024-11-20 08:18:59,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:18:59,465 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:18:59,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:18:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-20 08:18:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-20 08:18:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-20 08:18:59,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2024-11-20 08:18:59,506 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 74 [2024-11-20 08:18:59,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:18:59,506 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2024-11-20 08:18:59,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-20 08:18:59,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-20 08:18:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 08:18:59,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:18:59,511 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:18:59,521 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 [2024-11-20 08:18:59,715 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 [2024-11-20 08:18:59,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:18:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:18:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1898876107, now seen corresponding path program 1 times [2024-11-20 08:18:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 08:18:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904942775] [2024-11-20 08:18:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:18:59,719 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 [2024-11-20 08:18:59,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 08:18:59,720 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) [2024-11-20 08:18:59,723 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 [2024-11-20 08:18:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:18:59,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 08:18:59,985 INFO L278 TraceCheckSpWp]: Computing forward predicates...