./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.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 9ecf9946f2729feb1d0398e86d112c7fdaf45b33f49853e36c123eae97ff163b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:14:09,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:14:09,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:14:09,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:14:09,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:14:10,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:14:10,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:14:10,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:14:10,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:14:10,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:14:10,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:14:10,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:14:10,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:14:10,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:14:10,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:14:10,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:14:10,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:14:10,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:14:10,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:14:10,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:14:10,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:14:10,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:14:10,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:14:10,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:14:10,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:14:10,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:14:10,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:14:10,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:14:10,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:14:10,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:14:10,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:14:10,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:14:10,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:14:10,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:14:10,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:14:10,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:14:10,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:14:10,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:14:10,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:14:10,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:14:10,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:14:10,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:14:10,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ecf9946f2729feb1d0398e86d112c7fdaf45b33f49853e36c123eae97ff163b [2024-11-18 22:14:10,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:14:10,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:14:10,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:14:10,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:14:10,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:14:10,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i [2024-11-18 22:14:11,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:14:11,623 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:14:11,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i [2024-11-18 22:14:11,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/702507889/c518c4b9877a44ddac18ac43a0accfa6/FLAG7749b8889 [2024-11-18 22:14:11,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/702507889/c518c4b9877a44ddac18ac43a0accfa6 [2024-11-18 22:14:11,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:14:11,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:14:11,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:14:11,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:14:11,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:14:11,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a6921d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11, skipping insertion in model container [2024-11-18 22:14:11,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:14:11,841 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i[916,929] [2024-11-18 22:14:11,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:14:11,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:14:11,900 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i[916,929] [2024-11-18 22:14:11,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:14:11,927 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:14:11,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11 WrapperNode [2024-11-18 22:14:11,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:14:11,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:14:11,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:14:11,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:14:11,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,967 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-18 22:14:11,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:14:11,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:14:11,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:14:11,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:14:11,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,990 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]. [2024-11-18 22:14:11,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:11,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:14:11,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:14:11,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:14:11,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:14:12,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (1/1) ... [2024-11-18 22:14:12,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:14:12,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:14:12,029 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) [2024-11-18 22:14:12,031 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 [2024-11-18 22:14:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:14:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:14:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:14:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:14:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:14:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:14:12,117 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:14:12,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:14:12,264 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-18 22:14:12,264 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:14:12,276 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:14:12,277 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:14:12,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:12 BoogieIcfgContainer [2024-11-18 22:14:12,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:14:12,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:14:12,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:14:12,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:14:12,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:14:11" (1/3) ... [2024-11-18 22:14:12,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b5f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:14:12, skipping insertion in model container [2024-11-18 22:14:12,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:11" (2/3) ... [2024-11-18 22:14:12,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b5f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:14:12, skipping insertion in model container [2024-11-18 22:14:12,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:12" (3/3) ... [2024-11-18 22:14:12,291 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-62.i [2024-11-18 22:14:12,303 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:14:12,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:14:12,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:14:12,352 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;@2236aaf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:14:12,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:14:12,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 22:14:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 22:14:12,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:12,365 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:12,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:12,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash -546360006, now seen corresponding path program 1 times [2024-11-18 22:14:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:12,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834467881] [2024-11-18 22:14:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-18 22:14:12,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:12,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834467881] [2024-11-18 22:14:12,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834467881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:14:12,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757798642] [2024-11-18 22:14:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:14:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:14:12,559 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) [2024-11-18 22:14:12,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:14:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:12,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:14:12,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:14:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-18 22:14:12,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:14:12,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757798642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:12,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:14:12,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:14:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451082883] [2024-11-18 22:14:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:12,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:14:12,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:12,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:14:12,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:14:12,700 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 22:14:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:12,715 INFO L93 Difference]: Finished difference Result 73 states and 116 transitions. [2024-11-18 22:14:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:14:12,717 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-11-18 22:14:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:12,735 INFO L225 Difference]: With dead ends: 73 [2024-11-18 22:14:12,735 INFO L226 Difference]: Without dead ends: 36 [2024-11-18 22:14:12,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:14:12,743 INFO L432 NwaCegarLoop]: 50 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, 50 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 [2024-11-18 22:14:12,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:14:12,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-18 22:14:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-18 22:14:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 22:14:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2024-11-18 22:14:12,790 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 58 [2024-11-18 22:14:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:12,790 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2024-11-18 22:14:12,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 22:14:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-11-18 22:14:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 22:14:12,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:12,792 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:12,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:14:12,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:14:12,993 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:12,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:12,993 INFO L85 PathProgramCache]: Analyzing trace with hash 103720250, now seen corresponding path program 1 times [2024-11-18 22:14:12,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:12,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116073799] [2024-11-18 22:14:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:12,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 22:14:13,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:13,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116073799] [2024-11-18 22:14:13,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116073799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:13,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:13,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:14:13,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673039085] [2024-11-18 22:14:13,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:13,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:14:13,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:13,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:14:13,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:14:13,805 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:13,983 INFO L93 Difference]: Finished difference Result 98 states and 134 transitions. [2024-11-18 22:14:13,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:14:13,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2024-11-18 22:14:13,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:13,985 INFO L225 Difference]: With dead ends: 98 [2024-11-18 22:14:13,986 INFO L226 Difference]: Without dead ends: 65 [2024-11-18 22:14:13,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:14:13,987 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:13,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 196 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:14:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-18 22:14:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 44. [2024-11-18 22:14:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 22:14:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-18 22:14:13,999 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 58 [2024-11-18 22:14:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:14,000 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-18 22:14:14,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-18 22:14:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 22:14:14,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:14,002 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:14,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:14:14,003 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:14,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1878727612, now seen corresponding path program 1 times [2024-11-18 22:14:14,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:14,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034556304] [2024-11-18 22:14:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 22:14:16,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:16,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034556304] [2024-11-18 22:14:16,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034556304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:16,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:16,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:14:16,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850875149] [2024-11-18 22:14:16,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:16,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:14:16,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:16,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:14:16,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:14:16,129 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:16,326 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2024-11-18 22:14:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:14:16,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2024-11-18 22:14:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:16,328 INFO L225 Difference]: With dead ends: 55 [2024-11-18 22:14:16,328 INFO L226 Difference]: Without dead ends: 53 [2024-11-18 22:14:16,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:14:16,329 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 23 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:16,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 150 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:14:16,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-18 22:14:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2024-11-18 22:14:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 22:14:16,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-18 22:14:16,334 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 58 [2024-11-18 22:14:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:16,335 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-18 22:14:16,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-18 22:14:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-18 22:14:16,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:16,340 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:16,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 22:14:16,340 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:16,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash 21009008, now seen corresponding path program 1 times [2024-11-18 22:14:16,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:16,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011501009] [2024-11-18 22:14:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:16,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 22:14:16,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:16,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011501009] [2024-11-18 22:14:16,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011501009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:16,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:16,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:14:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048301270] [2024-11-18 22:14:16,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:16,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:14:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:14:16,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:14:16,388 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:16,411 INFO L93 Difference]: Finished difference Result 109 states and 150 transitions. [2024-11-18 22:14:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:14:16,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 60 [2024-11-18 22:14:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:16,412 INFO L225 Difference]: With dead ends: 109 [2024-11-18 22:14:16,412 INFO L226 Difference]: Without dead ends: 64 [2024-11-18 22:14:16,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:14:16,413 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:16,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 98 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:14:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-18 22:14:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2024-11-18 22:14:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 22:14:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2024-11-18 22:14:16,423 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 60 [2024-11-18 22:14:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:16,423 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-11-18 22:14:16,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-11-18 22:14:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-18 22:14:16,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:16,424 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:16,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 22:14:16,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:16,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1796016370, now seen corresponding path program 1 times [2024-11-18 22:14:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999674059] [2024-11-18 22:14:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 22:14:16,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:16,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999674059] [2024-11-18 22:14:16,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999674059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:16,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:16,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:14:16,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792457194] [2024-11-18 22:14:16,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:16,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 22:14:16,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:16,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 22:14:16,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:14:16,481 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:16,507 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2024-11-18 22:14:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 22:14:16,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 60 [2024-11-18 22:14:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:16,510 INFO L225 Difference]: With dead ends: 86 [2024-11-18 22:14:16,510 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 22:14:16,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:14:16,512 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:16,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:14:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 22:14:16,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 22:14:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 22:14:16,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 22:14:16,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2024-11-18 22:14:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:16,515 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 22:14:16,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-18 22:14:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 22:14:16,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 22:14:16,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 22:14:16,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 22:14:16,521 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 22:14:16,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 22:14:16,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 22:14:16,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:14:16 BoogieIcfgContainer [2024-11-18 22:14:16,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 22:14:16,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 22:14:16,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 22:14:16,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 22:14:16,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:12" (3/4) ... [2024-11-18 22:14:16,558 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 22:14:16,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-18 22:14:16,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-18 22:14:16,568 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 22:14:16,568 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 22:14:16,568 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 22:14:16,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 22:14:16,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 22:14:16,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 22:14:16,670 INFO L158 Benchmark]: Toolchain (without parser) took 5024.17ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 71.1MB in the beginning and 281.5MB in the end (delta: -210.4MB). Peak memory consumption was 149.4MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,670 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:14:16,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.70ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 71.0MB in the beginning and 175.1MB in the end (delta: -104.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 209.7MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,671 INFO L158 Benchmark]: Boogie Preprocessor took 30.63ms. Allocated memory is still 209.7MB. Free memory was 173.0MB in the beginning and 170.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,673 INFO L158 Benchmark]: RCFGBuilder took 277.93ms. Allocated memory is still 209.7MB. Free memory was 170.8MB in the beginning and 156.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,673 INFO L158 Benchmark]: TraceAbstraction took 4272.98ms. Allocated memory was 209.7MB in the beginning and 314.6MB in the end (delta: 104.9MB). Free memory was 155.1MB in the beginning and 102.3MB in the end (delta: 52.8MB). Peak memory consumption was 156.6MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,673 INFO L158 Benchmark]: Witness Printer took 114.04ms. Allocated memory is still 314.6MB. Free memory was 102.3MB in the beginning and 281.5MB in the end (delta: -179.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-18 22:14:16,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.70ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 71.0MB in the beginning and 175.1MB in the end (delta: -104.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 209.7MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.63ms. Allocated memory is still 209.7MB. Free memory was 173.0MB in the beginning and 170.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.93ms. Allocated memory is still 209.7MB. Free memory was 170.8MB in the beginning and 156.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4272.98ms. Allocated memory was 209.7MB in the beginning and 314.6MB in the end (delta: 104.9MB). Free memory was 155.1MB in the beginning and 102.3MB in the end (delta: 52.8MB). Peak memory consumption was 156.6MB. Max. memory is 16.1GB. * Witness Printer took 114.04ms. Allocated memory is still 314.6MB. Free memory was 102.3MB in the beginning and 281.5MB in the end (delta: -179.2MB). Peak memory consumption was 6.4MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 597 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 366 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 231 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 37 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 658/672 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (last_1_var_1_1 == \old(last_1_var_1_1))) && (last_1_var_1_5 == \old(last_1_var_1_5))) && (last_1_var_1_10 == \old(last_1_var_1_10))) RESULT: Ultimate proved your program to be correct! [2024-11-18 22:14:16,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE