./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:45:18,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:45:19,028 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 16:45:19,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:45:19,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:45:19,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:45:19,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:45:19,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:45:19,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:45:19,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:45:19,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:45:19,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:45:19,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:45:19,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:45:19,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:45:19,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:45:19,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:45:19,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:45:19,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:45:19,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:45:19,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:45:19,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:45:19,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:45:19,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:45:19,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:45:19,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:45:19,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:45:19,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:45:19,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:19,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:45:19,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:45:19,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:45:19,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:45:19,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:45:19,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e [2024-11-18 16:45:19,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:45:19,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:45:19,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:45:19,290 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:45:19,291 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:45:19,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-18 16:45:20,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:45:20,680 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:45:20,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-18 16:45:20,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb4bf508/a46ab48d3fc74dcc98ba6f6042626a05/FLAGdea069a2a [2024-11-18 16:45:20,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb4bf508/a46ab48d3fc74dcc98ba6f6042626a05 [2024-11-18 16:45:20,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:45:20,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:45:20,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:20,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:45:20,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:45:20,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:20,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e11b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20, skipping insertion in model container [2024-11-18 16:45:20,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:20,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:45:20,877 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/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-18 16:45:20,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:20,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:45:20,924 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/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-18 16:45:20,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:20,949 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:45:20,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20 WrapperNode [2024-11-18 16:45:20,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:20,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:20,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:45:20,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:45:20,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:20,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:20,989 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2024-11-18 16:45:20,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:20,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:45:20,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:45:20,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:45:21,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,016 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-18 16:45:21,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:45:21,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:45:21,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:45:21,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:45:21,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (1/1) ... [2024-11-18 16:45:21,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:21,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:45:21,086 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 16:45:21,118 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 16:45:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:45:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:45:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 16:45:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:45:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:45:21,256 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:45:21,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:45:21,475 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-18 16:45:21,475 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:45:21,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:45:21,483 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:45:21,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:21 BoogieIcfgContainer [2024-11-18 16:45:21,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:45:21,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:45:21,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:45:21,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:45:21,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:45:20" (1/3) ... [2024-11-18 16:45:21,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fbcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:21, skipping insertion in model container [2024-11-18 16:45:21,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:20" (2/3) ... [2024-11-18 16:45:21,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fbcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:21, skipping insertion in model container [2024-11-18 16:45:21,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:21" (3/3) ... [2024-11-18 16:45:21,492 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2024-11-18 16:45:21,507 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:45:21,508 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:45:21,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:45:21,564 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;@c46e5e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:45:21,567 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:45:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 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 16:45:21,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-18 16:45:21,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:21,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:21,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:21,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash 714369968, now seen corresponding path program 1 times [2024-11-18 16:45:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099205791] [2024-11-18 16:45:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:21,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:22,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:22,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099205791] [2024-11-18 16:45:22,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099205791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:22,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:22,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383227723] [2024-11-18 16:45:22,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:22,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:22,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:22,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:22,050 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 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) Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 16:45:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:22,185 INFO L93 Difference]: Finished difference Result 71 states and 102 transitions. [2024-11-18 16:45:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) Word has length 15 [2024-11-18 16:45:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:22,193 INFO L225 Difference]: With dead ends: 71 [2024-11-18 16:45:22,193 INFO L226 Difference]: Without dead ends: 47 [2024-11-18 16:45:22,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:22,200 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:22,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 38 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-18 16:45:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2024-11-18 16:45:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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 16:45:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-11-18 16:45:22,224 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 15 [2024-11-18 16:45:22,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:22,224 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-11-18 16:45:22,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 16:45:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-18 16:45:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-18 16:45:22,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:22,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:22,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:45:22,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:22,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:22,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1725300080, now seen corresponding path program 1 times [2024-11-18 16:45:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:22,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170990887] [2024-11-18 16:45:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:22,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:22,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170990887] [2024-11-18 16:45:22,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170990887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:22,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:22,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:22,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547164380] [2024-11-18 16:45:22,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:22,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:22,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:22,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:22,436 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16:45:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:22,461 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2024-11-18 16:45:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2024-11-18 16:45:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:22,465 INFO L225 Difference]: With dead ends: 55 [2024-11-18 16:45:22,465 INFO L226 Difference]: Without dead ends: 34 [2024-11-18 16:45:22,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:22,466 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 28 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:22,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 58 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-18 16:45:22,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-18 16:45:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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 16:45:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2024-11-18 16:45:22,472 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 16 [2024-11-18 16:45:22,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:22,472 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2024-11-18 16:45:22,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16:45:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-11-18 16:45:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 16:45:22,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:22,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:22,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:45:22,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:22,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:22,474 INFO L85 PathProgramCache]: Analyzing trace with hash 511567757, now seen corresponding path program 1 times [2024-11-18 16:45:22,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:22,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001789926] [2024-11-18 16:45:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:22,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:22,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:22,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001789926] [2024-11-18 16:45:22,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001789926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:22,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:22,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:22,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581757261] [2024-11-18 16:45:22,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:22,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:22,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:22,601 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 16:45:22,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:22,624 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2024-11-18 16:45:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:22,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) Word has length 18 [2024-11-18 16:45:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:22,625 INFO L225 Difference]: With dead ends: 38 [2024-11-18 16:45:22,626 INFO L226 Difference]: Without dead ends: 36 [2024-11-18 16:45:22,626 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 16:45:22,628 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:22,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-18 16:45:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-18 16:45:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 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 16:45:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2024-11-18 16:45:22,635 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 18 [2024-11-18 16:45:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:22,636 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2024-11-18 16:45:22,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 16:45:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2024-11-18 16:45:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 16:45:22,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:22,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:22,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:45:22,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:22,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1319573499, now seen corresponding path program 1 times [2024-11-18 16:45:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:22,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139983527] [2024-11-18 16:45:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:45:22,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 16:45:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:45:22,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 16:45:22,714 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 16:45:22,715 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 16:45:22,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:45:22,718 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-18 16:45:22,739 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:45:22,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:45:22 BoogieIcfgContainer [2024-11-18 16:45:22,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:45:22,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:45:22,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:45:22,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:45:22,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:21" (3/4) ... [2024-11-18 16:45:22,748 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 16:45:22,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:45:22,750 INFO L158 Benchmark]: Toolchain (without parser) took 2041.06ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 79.3MB in the beginning and 112.0MB in the end (delta: -32.8MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,750 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:45:22,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.19ms. Allocated memory is still 151.0MB. Free memory was 79.1MB in the beginning and 65.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.55ms. Allocated memory is still 151.0MB. Free memory was 65.7MB in the beginning and 62.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,751 INFO L158 Benchmark]: Boogie Preprocessor took 46.89ms. Allocated memory is still 151.0MB. Free memory was 62.7MB in the beginning and 60.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,751 INFO L158 Benchmark]: RCFGBuilder took 446.11ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 60.2MB in the beginning and 190.4MB in the end (delta: -130.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,751 INFO L158 Benchmark]: TraceAbstraction took 1257.55ms. Allocated memory is still 234.9MB. Free memory was 190.4MB in the beginning and 112.0MB in the end (delta: 78.4MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2024-11-18 16:45:22,752 INFO L158 Benchmark]: Witness Printer took 5.44ms. Allocated memory is still 234.9MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:45:22,753 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.19ms. Allocated memory is still 151.0MB. Free memory was 79.1MB in the beginning and 65.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.55ms. Allocated memory is still 151.0MB. Free memory was 65.7MB in the beginning and 62.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.89ms. Allocated memory is still 151.0MB. Free memory was 62.7MB in the beginning and 60.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 446.11ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 60.2MB in the beginning and 190.4MB in the end (delta: -130.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1257.55ms. Allocated memory is still 234.9MB. Free memory was 190.4MB in the beginning and 112.0MB in the end (delta: 78.4MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. * Witness Printer took 5.44ms. Allocated memory is still 234.9MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 bitwiseAnd at line 60. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_1 var_4 = 1; [L33] const SORT_7 var_9 = 1; [L34] const SORT_1 var_17 = 0; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L39] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_17=0, var_4=1, var_9=1] [L39] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 init_6_arg_1 = var_4; [L42] state_5 = init_6_arg_1 VAL [mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L45] input_2 = __VERIFIER_nondet_uchar() [L46] input_3 = __VERIFIER_nondet_uchar() [L47] EXPR input_3 & mask_SORT_1 VAL [mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L47] input_3 = input_3 & mask_SORT_1 [L50] SORT_1 var_8_arg_0 = state_5; VAL [input_3=0, mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_8_arg_0=1, var_9=1] [L51] EXPR var_8_arg_0 & mask_SORT_1 VAL [input_3=0, mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L51] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L52] SORT_7 var_8 = var_8_arg_0; [L53] SORT_7 var_10_arg_0 = var_8; [L54] SORT_7 var_10_arg_1 = var_9; [L55] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L56] SORT_1 var_13_arg_0 = var_10; [L57] SORT_1 var_13 = ~var_13_arg_0; [L58] SORT_1 var_14_arg_0 = var_4; [L59] SORT_1 var_14_arg_1 = var_13; VAL [input_3=0, mask_SORT_1=1, state_5=1, var_14_arg_0=1, var_14_arg_1=-2, var_17=0, var_4=1, var_9=1] [L60] EXPR var_14_arg_0 & var_14_arg_1 VAL [input_3=0, mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L60] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L61] EXPR var_14 & mask_SORT_1 VAL [input_3=0, mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L61] var_14 = var_14 & mask_SORT_1 [L62] SORT_1 bad_15_arg_0 = var_14; [L63] CALL __VERIFIER_assert(!(bad_15_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 75 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 [2024-11-18 16:45:22,776 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/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/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:45:24,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:45:24,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 16:45:24,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:45:24,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:45:24,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:45:24,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:45:24,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:45:24,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:45:24,690 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:45:24,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:45:24,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:45:24,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:45:24,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:45:24,692 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:45:24,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:45:24,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:45:24,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:45:24,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:45:24,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:45:24,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:45:24,699 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 16:45:24,699 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 16:45:24,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:45:24,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:45:24,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:24,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:45:24,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:45:24,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:45:24,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e [2024-11-18 16:45:24,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:45:24,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:45:24,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:45:24,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:45:24,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:45:24,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-18 16:45:26,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:45:26,419 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:45:26,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-18 16:45:26,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a14859b/72708833ce664e47955f84769f0aef2f/FLAGc9e6269dc [2024-11-18 16:45:26,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a14859b/72708833ce664e47955f84769f0aef2f [2024-11-18 16:45:26,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:45:26,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:45:26,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:26,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:45:26,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:45:26,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f4ece3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26, skipping insertion in model container [2024-11-18 16:45:26,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:45:26,618 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/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-18 16:45:26,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:26,656 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:45:26,667 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/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-18 16:45:26,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:26,696 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:45:26,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26 WrapperNode [2024-11-18 16:45:26,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:26,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:26,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:45:26,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:45:26,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,725 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-11-18 16:45:26,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:26,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:45:26,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:45:26,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:45:26,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,752 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-18 16:45:26,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:45:26,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:45:26,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:45:26,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:45:26,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (1/1) ... [2024-11-18 16:45:26,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:26,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:45:26,804 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 16:45:26,809 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 16:45:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:45:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 16:45:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 16:45:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:45:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:45:26,921 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:45:26,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:45:27,069 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-18 16:45:27,069 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:45:27,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:45:27,083 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:45:27,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:27 BoogieIcfgContainer [2024-11-18 16:45:27,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:45:27,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:45:27,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:45:27,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:45:27,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:45:26" (1/3) ... [2024-11-18 16:45:27,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ce76b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:27, skipping insertion in model container [2024-11-18 16:45:27,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:26" (2/3) ... [2024-11-18 16:45:27,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ce76b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:27, skipping insertion in model container [2024-11-18 16:45:27,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:27" (3/3) ... [2024-11-18 16:45:27,092 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2024-11-18 16:45:27,104 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:45:27,105 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:45:27,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:45:27,157 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;@6db77dca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:45:27,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:45:27,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 16:45:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 16:45:27,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:27,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 16:45:27,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:27,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 16:45:27,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:45:27,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608901845] [2024-11-18 16:45:27,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:27,179 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 [2024-11-18 16:45:27,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:45:27,181 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) [2024-11-18 16:45:27,182 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 [2024-11-18 16:45:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:27,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 16:45:27,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:45:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:27,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 16:45:27,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:45:27,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608901845] [2024-11-18 16:45:27,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608901845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:27,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:27,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:27,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859146842] [2024-11-18 16:45:27,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:27,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:27,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:45:27,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:27,513 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 16:45:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:27,554 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-18 16:45:27,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2024-11-18 16:45:27,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:27,562 INFO L225 Difference]: With dead ends: 18 [2024-11-18 16:45:27,562 INFO L226 Difference]: Without dead ends: 10 [2024-11-18 16:45:27,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:27,568 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:27,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:27,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-18 16:45:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-18 16:45:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 16:45:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-18 16:45:27,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-18 16:45:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:27,594 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-18 16:45:27,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 16:45:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-18 16:45:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 16:45:27,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:27,595 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:27,599 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-18 16:45:27,798 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 [2024-11-18 16:45:27,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:27,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-18 16:45:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:45:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205259860] [2024-11-18 16:45:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:27,801 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 [2024-11-18 16:45:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:45:27,803 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) [2024-11-18 16:45:27,807 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 [2024-11-18 16:45:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:27,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-18 16:45:27,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:45:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:28,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:45:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:28,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:45:28,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205259860] [2024-11-18 16:45:28,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205259860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:45:28,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 16:45:28,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-18 16:45:28,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135244904] [2024-11-18 16:45:28,471 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 16:45:28,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:45:28,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:45:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:45:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:45:28,473 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 16:45:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:28,493 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-18 16:45:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:28,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) Word has length 8 [2024-11-18 16:45:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:28,494 INFO L225 Difference]: With dead ends: 9 [2024-11-18 16:45:28,494 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 16:45:28,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:45:28,495 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:28,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 16:45:28,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 16:45:28,496 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 16:45:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 16:45:28,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-18 16:45:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:28,497 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 16:45:28,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 16:45:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 16:45:28,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 16:45:28,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 16:45:28,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-18 16:45:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:45:28,705 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 16:45:28,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 16:45:28,725 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:45:28,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:45:28 BoogieIcfgContainer [2024-11-18 16:45:28,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:45:28,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:45:28,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:45:28,742 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:45:28,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:27" (3/4) ... [2024-11-18 16:45:28,744 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 16:45:28,749 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-18 16:45:28,749 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-18 16:45:28,750 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 16:45:28,750 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 16:45:28,750 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 16:45:28,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 16:45:28,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 16:45:28,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:45:28,856 INFO L158 Benchmark]: Toolchain (without parser) took 2417.95ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 32.8MB in the beginning and 93.8MB in the end (delta: -61.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:45:28,856 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:45:28,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.02ms. Allocated memory is still 73.4MB. Free memory was 32.8MB in the beginning and 44.9MB in the end (delta: -12.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.74ms. Allocated memory is still 73.4MB. Free memory was 44.9MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,857 INFO L158 Benchmark]: Boogie Preprocessor took 45.65ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,860 INFO L158 Benchmark]: RCFGBuilder took 310.93ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 41.0MB in the beginning and 76.6MB in the end (delta: -35.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,861 INFO L158 Benchmark]: TraceAbstraction took 1656.46ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 76.1MB in the beginning and 88.7MB in the end (delta: -12.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,862 INFO L158 Benchmark]: Witness Printer took 113.11ms. Allocated memory is still 119.5MB. Free memory was 88.7MB in the beginning and 93.8MB in the end (delta: -5.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:45:28,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.02ms. Allocated memory is still 73.4MB. Free memory was 32.8MB in the beginning and 44.9MB in the end (delta: -12.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.74ms. Allocated memory is still 73.4MB. Free memory was 44.9MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.65ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.93ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 41.0MB in the beginning and 76.6MB in the end (delta: -35.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1656.46ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 76.1MB in the beginning and 88.7MB in the end (delta: -12.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 113.11ms. Allocated memory is still 119.5MB. Free memory was 88.7MB in the beginning and 93.8MB in the end (delta: -5.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: 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 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 4 QuantifiedInterpolants, 804 SizeOfPredicates, 10 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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: 43]: Loop Invariant Derived loop invariant: (((((0 == var_17) && (1 == var_9)) && (1 == var_4)) && (1 == mask_SORT_1)) && (1 == state_5)) RESULT: Ultimate proved your program to be correct! [2024-11-18 16:45:28,884 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