./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.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 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:05:33,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:05:33,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 22:05:33,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:05:33,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:05:33,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:05:33,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:05:33,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:05:33,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:05:33,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:05:33,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:05:33,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:05:33,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:05:33,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:05:33,480 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:05:33,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:05:33,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:05:33,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 22:05:33,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:05:33,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:05:33,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:05:33,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:05:33,484 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:05:33,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:05:33,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:05:33,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:05:33,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:05:33,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:05:33,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:05:33,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:05:33,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:05:33,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:05:33,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:05:33,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 22:05:33,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 22:05:33,491 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:05:33,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:05:33,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:05:33,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:05:33,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e [2024-10-12 22:05:33,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:05:33,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:05:33,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:05:33,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:05:33,794 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:05:33,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:35,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:05:35,531 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:05:35,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:35,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cdaca95c/f5bef362638f44bfb1b93c5ed65b3696/FLAG1299e6269 [2024-10-12 22:05:35,917 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cdaca95c/f5bef362638f44bfb1b93c5ed65b3696 [2024-10-12 22:05:35,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:05:35,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:05:35,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:05:35,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:05:35,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:05:35,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:05:35" (1/1) ... [2024-10-12 22:05:35,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7553d31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:35, skipping insertion in model container [2024-10-12 22:05:35,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:05:35" (1/1) ... [2024-10-12 22:05:35,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:05:36,119 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2024-10-12 22:05:36,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:05:36,161 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:05:36,173 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2024-10-12 22:05:36,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:05:36,215 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:05:36,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36 WrapperNode [2024-10-12 22:05:36,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:05:36,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:05:36,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:05:36,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:05:36,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,282 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 151 [2024-10-12 22:05:36,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:05:36,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:05:36,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:05:36,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:05:36,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,326 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 22:05:36,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:05:36,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:05:36,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:05:36,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:05:36,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (1/1) ... [2024-10-12 22:05:36,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:05:36,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:05:36,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 22:05:36,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 22:05:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:05:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 22:05:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:05:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:05:36,550 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:05:36,552 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:05:36,936 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-10-12 22:05:36,936 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:05:36,971 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:05:36,973 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:05:36,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:36 BoogieIcfgContainer [2024-10-12 22:05:36,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:05:36,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:05:36,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:05:36,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:05:36,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:05:35" (1/3) ... [2024-10-12 22:05:36,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bc8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:05:36, skipping insertion in model container [2024-10-12 22:05:36,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:36" (2/3) ... [2024-10-12 22:05:36,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bc8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:05:36, skipping insertion in model container [2024-10-12 22:05:36,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:36" (3/3) ... [2024-10-12 22:05:36,987 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:37,005 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:05:37,006 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:05:37,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:05:37,063 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;@35e0edcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:05:37,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:05:37,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 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) [2024-10-12 22:05:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 22:05:37,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:37,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:05:37,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:37,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:37,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1291595519, now seen corresponding path program 1 times [2024-10-12 22:05:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:05:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948244788] [2024-10-12 22:05:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:37,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:05:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:05:37,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948244788] [2024-10-12 22:05:37,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948244788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:05:37,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:05:37,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:05:37,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510387773] [2024-10-12 22:05:37,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:05:37,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:05:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:05:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:05:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:05:37,717 INFO L87 Difference]: Start difference. First operand has 43 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 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 3.5) internal successors, (14), 4 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) [2024-10-12 22:05:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:37,768 INFO L93 Difference]: Finished difference Result 78 states and 114 transitions. [2024-10-12 22:05:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:05:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2024-10-12 22:05:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:37,778 INFO L225 Difference]: With dead ends: 78 [2024-10-12 22:05:37,779 INFO L226 Difference]: Without dead ends: 44 [2024-10-12 22:05:37,782 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 [2024-10-12 22:05:37,787 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:37,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:05:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-12 22:05:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-12 22:05:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.441860465116279) internal successors, (62), 43 states have internal predecessors, (62), 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) [2024-10-12 22:05:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2024-10-12 22:05:37,820 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 14 [2024-10-12 22:05:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:37,820 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2024-10-12 22:05:37,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-12 22:05:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2024-10-12 22:05:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-12 22:05:37,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:37,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:05:37,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 22:05:37,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:37,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:37,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1386450643, now seen corresponding path program 1 times [2024-10-12 22:05:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:05:37,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124682111] [2024-10-12 22:05:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:05:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:05:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124682111] [2024-10-12 22:05:37,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124682111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:05:37,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:05:37,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:05:37,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454417481] [2024-10-12 22:05:37,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:05:37,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:05:37,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:05:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:05:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:05:37,964 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-10-12 22:05:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:38,007 INFO L93 Difference]: Finished difference Result 81 states and 114 transitions. [2024-10-12 22:05:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:05:38,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2024-10-12 22:05:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:38,009 INFO L225 Difference]: With dead ends: 81 [2024-10-12 22:05:38,009 INFO L226 Difference]: Without dead ends: 46 [2024-10-12 22:05:38,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:05:38,011 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:38,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:05:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-12 22:05:38,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-12 22:05:38,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 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) [2024-10-12 22:05:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-10-12 22:05:38,019 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 15 [2024-10-12 22:05:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:38,019 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-10-12 22:05:38,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-10-12 22:05:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-10-12 22:05:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 22:05:38,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:38,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:05:38,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 22:05:38,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:38,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1067668904, now seen corresponding path program 1 times [2024-10-12 22:05:38,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:05:38,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60623694] [2024-10-12 22:05:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:38,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:05:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:38,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:05:38,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60623694] [2024-10-12 22:05:38,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60623694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:05:38,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:05:38,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:05:38,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451799544] [2024-10-12 22:05:38,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:05:38,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:05:38,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:05:38,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:05:38,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:05:38,278 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 5 states, 5 states have (on average 3.2) 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) [2024-10-12 22:05:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:38,395 INFO L93 Difference]: Finished difference Result 112 states and 154 transitions. [2024-10-12 22:05:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:05:38,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) 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 [2024-10-12 22:05:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:38,399 INFO L225 Difference]: With dead ends: 112 [2024-10-12 22:05:38,399 INFO L226 Difference]: Without dead ends: 75 [2024-10-12 22:05:38,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:05:38,402 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 42 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:38,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 163 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:05:38,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-12 22:05:38,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49. [2024-10-12 22:05:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 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) [2024-10-12 22:05:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2024-10-12 22:05:38,417 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 16 [2024-10-12 22:05:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:38,418 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-10-12 22:05:38,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) 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) [2024-10-12 22:05:38,418 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2024-10-12 22:05:38,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 22:05:38,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:38,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:05:38,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 22:05:38,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:38,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:38,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1102564875, now seen corresponding path program 1 times [2024-10-12 22:05:38,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:05:38,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505927515] [2024-10-12 22:05:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:38,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:05:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:38,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:05:38,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505927515] [2024-10-12 22:05:38,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505927515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:05:38,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:05:38,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 22:05:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782284641] [2024-10-12 22:05:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:05:38,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:05:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:05:38,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:05:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:05:38,614 INFO L87 Difference]: Start difference. First operand 49 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2024-10-12 22:05:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:38,642 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2024-10-12 22:05:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:05:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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 [2024-10-12 22:05:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:38,657 INFO L225 Difference]: With dead ends: 84 [2024-10-12 22:05:38,658 INFO L226 Difference]: Without dead ends: 47 [2024-10-12 22:05:38,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:05:38,661 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 50 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:38,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 105 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:05:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-12 22:05:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-10-12 22:05:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 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) [2024-10-12 22:05:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2024-10-12 22:05:38,667 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 18 [2024-10-12 22:05:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:38,669 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2024-10-12 22:05:38,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2024-10-12 22:05:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2024-10-12 22:05:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 22:05:38,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:38,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:05:38,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 22:05:38,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:38,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1744772409, now seen corresponding path program 1 times [2024-10-12 22:05:38,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:05:38,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736606145] [2024-10-12 22:05:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:05:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 22:05:38,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 22:05:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 22:05:38,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 22:05:38,756 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 22:05:38,757 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 22:05:38,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 22:05:38,765 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-12 22:05:38,797 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 22:05:38,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:05:38 BoogieIcfgContainer [2024-10-12 22:05:38,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 22:05:38,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 22:05:38,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 22:05:38,803 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 22:05:38,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:36" (3/4) ... [2024-10-12 22:05:38,806 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 22:05:38,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 22:05:38,808 INFO L158 Benchmark]: Toolchain (without parser) took 2885.46ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 81.0MB in the beginning and 162.5MB in the end (delta: -81.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:38,808 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:38,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.45ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 67.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 22:05:38,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.12ms. Allocated memory is still 155.2MB. Free memory was 67.1MB in the beginning and 62.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 22:05:38,809 INFO L158 Benchmark]: Boogie Preprocessor took 82.17ms. Allocated memory is still 155.2MB. Free memory was 62.8MB in the beginning and 59.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 22:05:38,810 INFO L158 Benchmark]: RCFGBuilder took 608.50ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 59.8MB in the beginning and 152.5MB in the end (delta: -92.7MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-10-12 22:05:38,810 INFO L158 Benchmark]: TraceAbstraction took 1824.45ms. Allocated memory is still 205.5MB. Free memory was 151.5MB in the beginning and 162.5MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:38,812 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 205.5MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:38,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.45ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 67.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.12ms. Allocated memory is still 155.2MB. Free memory was 67.1MB in the beginning and 62.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.17ms. Allocated memory is still 155.2MB. Free memory was 62.8MB in the beginning and 59.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.50ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 59.8MB in the beginning and 152.5MB in the end (delta: -92.7MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1824.45ms. Allocated memory is still 205.5MB. Free memory was 151.5MB in the beginning and 162.5MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 205.5MB. Free memory is still 162.5MB. 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 67. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 3); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (3 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L35] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 2); [L36] const SORT_21 msb_SORT_21 = (SORT_21)1 << (2 - 1); [L38] const SORT_3 var_4 = 2; [L39] const SORT_7 var_9 = 2; [L40] const SORT_1 var_13 = 1; [L41] const SORT_3 var_17 = 6; [L43] SORT_1 input_2; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, var_13=1, var_17=6, var_4=2, var_9=2] [L45] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, var_13=1, var_17=6, var_4=2, var_9=2] [L46] SORT_3 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L48] SORT_3 init_6_arg_1 = var_4; [L49] state_5 = init_6_arg_1 [L50] SORT_3 init_19_arg_1 = var_17; [L51] state_18 = init_19_arg_1 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_9=2] [L54] input_2 = __VERIFIER_nondet_uchar() [L57] SORT_3 var_8_arg_0 = state_5; VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_8_arg_0=2, var_9=2] [L58] EXPR var_8_arg_0 & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_9=2] [L58] var_8_arg_0 = var_8_arg_0 & mask_SORT_3 [L59] SORT_7 var_8 = var_8_arg_0; [L60] SORT_7 var_10_arg_0 = var_8; [L61] SORT_7 var_10_arg_1 = var_9; [L62] SORT_1 var_10 = var_10_arg_0 >= var_10_arg_1; [L63] SORT_1 var_14_arg_0 = var_10; [L64] SORT_1 var_14 = ~var_14_arg_0; [L65] SORT_1 var_15_arg_0 = var_13; [L66] SORT_1 var_15_arg_1 = var_14; VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_15_arg_0=1, var_15_arg_1=-2, var_9=2] [L67] EXPR var_15_arg_0 & var_15_arg_1 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_9=2] [L67] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L68] EXPR var_15 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, state_18=6, state_5=2, var_13=1, var_9=2] [L68] var_15 = var_15 & mask_SORT_1 [L69] SORT_1 bad_16_arg_0 = var_15; [L70] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 597 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 210 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-10-12 22:05:38,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.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 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:05:41,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:05:41,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-12 22:05:41,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:05:41,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:05:41,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:05:41,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:05:41,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:05:41,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:05:41,371 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:05:41,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:05:41,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:05:41,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:05:41,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:05:41,373 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:05:41,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:05:41,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:05:41,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:05:41,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:05:41,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:05:41,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:05:41,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 22:05:41,377 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 22:05:41,377 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:05:41,377 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 22:05:41,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:05:41,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:05:41,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:05:41,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:05:41,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:05:41,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:05:41,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:05:41,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:05:41,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:05:41,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:05:41,381 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 22:05:41,382 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 22:05:41,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:05:41,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:05:41,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:05:41,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:05:41,383 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 22:05:41,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e [2024-10-12 22:05:41,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:05:41,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:05:41,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:05:41,755 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:05:41,756 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:05:41,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:43,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:05:43,609 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:05:43,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:43,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf07112a/13d7299eefa44ed09932c5aac94b3a1c/FLAG2a94b6ccb [2024-10-12 22:05:43,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf07112a/13d7299eefa44ed09932c5aac94b3a1c [2024-10-12 22:05:43,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:05:43,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:05:43,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:05:43,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:05:43,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:05:43,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:05:43" (1/1) ... [2024-10-12 22:05:43,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a1f8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:43, skipping insertion in model container [2024-10-12 22:05:43,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:05:43" (1/1) ... [2024-10-12 22:05:43,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:05:43,894 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2024-10-12 22:05:43,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:05:43,963 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:05:43,975 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2024-10-12 22:05:44,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:05:44,028 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:05:44,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44 WrapperNode [2024-10-12 22:05:44,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:05:44,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:05:44,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:05:44,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:05:44,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,071 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2024-10-12 22:05:44,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:05:44,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:05:44,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:05:44,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:05:44,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,104 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 22:05:44,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:05:44,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:05:44,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:05:44,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:05:44,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (1/1) ... [2024-10-12 22:05:44,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:05:44,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:05:44,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 22:05:44,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 22:05:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:05:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 22:05:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:05:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:05:44,306 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:05:44,308 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:05:44,511 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-10-12 22:05:44,511 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:05:44,556 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:05:44,556 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:05:44,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:44 BoogieIcfgContainer [2024-10-12 22:05:44,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:05:44,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:05:44,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:05:44,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:05:44,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:05:43" (1/3) ... [2024-10-12 22:05:44,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa5fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:05:44, skipping insertion in model container [2024-10-12 22:05:44,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:05:44" (2/3) ... [2024-10-12 22:05:44,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa5fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:05:44, skipping insertion in model container [2024-10-12 22:05:44,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:44" (3/3) ... [2024-10-12 22:05:44,569 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2024-10-12 22:05:44,585 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:05:44,586 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:05:44,653 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:05:44,662 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;@46d9d00a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:05:44,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:05:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-10-12 22:05:44,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-12 22:05:44,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:44,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-12 22:05:44,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:44,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-12 22:05:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:05:44,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101101369] [2024-10-12 22:05:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:44,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:44,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:05:44,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:05:44,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 22:05:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:44,781 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-12 22:05:44,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:05:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:45,064 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:05:45,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 22:05:45,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101101369] [2024-10-12 22:05:45,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101101369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:05:45,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:05:45,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 22:05:45,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630993543] [2024-10-12 22:05:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:05:45,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:05:45,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 22:05:45,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:05:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:05:45,100 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-12 22:05:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:45,160 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-12 22:05:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:05:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-12 22:05:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:45,172 INFO L225 Difference]: With dead ends: 15 [2024-10-12 22:05:45,172 INFO L226 Difference]: Without dead ends: 9 [2024-10-12 22:05:45,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:05:45,179 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 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 [2024-10-12 22:05:45,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:05:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-12 22:05:45,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-12 22:05:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-10-12 22:05:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-12 22:05:45,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-12 22:05:45,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:45,211 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-12 22:05:45,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-12 22:05:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-12 22:05:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 22:05:45,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:45,213 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-12 22:05:45,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-12 22:05:45,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:45,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:45,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-12 22:05:45,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:05:45,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073544795] [2024-10-12 22:05:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:05:45,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:45,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:05:45,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:05:45,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 22:05:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:05:45,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-12 22:05:45,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:05:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:45,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 22:05:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:45,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 22:05:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073544795] [2024-10-12 22:05:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073544795] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 22:05:45,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-12 22:05:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-12 22:05:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239445473] [2024-10-12 22:05:45,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-12 22:05:45,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 22:05:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 22:05:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 22:05:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:05:45,984 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-12 22:05:46,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:46,238 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-10-12 22:05:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 22:05:46,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2024-10-12 22:05:46,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:46,240 INFO L225 Difference]: With dead ends: 17 [2024-10-12 22:05:46,240 INFO L226 Difference]: Without dead ends: 15 [2024-10-12 22:05:46,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-12 22:05:46,241 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:46,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:05:46,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-12 22:05:46,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-12 22:05:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2024-10-12 22:05:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-10-12 22:05:46,252 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2024-10-12 22:05:46,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:46,252 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-10-12 22:05:46,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-12 22:05:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-10-12 22:05:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 22:05:46,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:46,254 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2024-10-12 22:05:46,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-12 22:05:46,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:46,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:46,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1748931734, now seen corresponding path program 2 times [2024-10-12 22:05:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:05:46,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078024658] [2024-10-12 22:05:46,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 22:05:46,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:46,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:05:46,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:05:46,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-12 22:05:46,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 22:05:46,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 22:05:46,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-12 22:05:46,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:05:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:46,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 22:05:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:05:47,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 22:05:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078024658] [2024-10-12 22:05:47,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078024658] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 22:05:47,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-12 22:05:47,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-12 22:05:47,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045435000] [2024-10-12 22:05:47,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-12 22:05:47,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 22:05:47,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 22:05:47,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 22:05:47,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-12 22:05:47,321 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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) [2024-10-12 22:05:48,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:48,649 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-10-12 22:05:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-12 22:05:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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 13 [2024-10-12 22:05:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:48,652 INFO L225 Difference]: With dead ends: 32 [2024-10-12 22:05:48,652 INFO L226 Difference]: Without dead ends: 30 [2024-10-12 22:05:48,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2024-10-12 22:05:48,655 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:48,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 22:05:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-12 22:05:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-10-12 22:05:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 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) [2024-10-12 22:05:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2024-10-12 22:05:48,668 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2024-10-12 22:05:48,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:48,669 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2024-10-12 22:05:48,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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) [2024-10-12 22:05:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2024-10-12 22:05:48,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 22:05:48,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:05:48,670 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1] [2024-10-12 22:05:48,675 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 (4)] Forceful destruction successful, exit code 0 [2024-10-12 22:05:48,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:48,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:05:48,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:05:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1157282226, now seen corresponding path program 3 times [2024-10-12 22:05:48,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:05:48,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443050995] [2024-10-12 22:05:48,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-12 22:05:48,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:05:48,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:05:48,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-12 22:05:48,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-12 22:05:48,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 22:05:48,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-12 22:05:49,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:05:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-12 22:05:49,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 22:05:51,539 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-12 22:05:51,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 22:05:51,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443050995] [2024-10-12 22:05:51,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443050995] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 22:05:51,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-12 22:05:51,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-10-12 22:05:51,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244912023] [2024-10-12 22:05:51,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-12 22:05:51,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 22:05:51,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 22:05:51,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 22:05:51,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-12 22:05:51,546 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2024-10-12 22:05:51,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:05:51,740 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2024-10-12 22:05:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:05:51,741 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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 28 [2024-10-12 22:05:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:05:51,742 INFO L225 Difference]: With dead ends: 29 [2024-10-12 22:05:51,742 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 22:05:51,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-10-12 22:05:51,744 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:05:51,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:05:51,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 22:05:51,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 22:05:51,747 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) [2024-10-12 22:05:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 22:05:51,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-10-12 22:05:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:05:51,748 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 22:05:51,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2024-10-12 22:05:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 22:05:51,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 22:05:51,751 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 22:05:51,756 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 (5)] Ended with exit code 0 [2024-10-12 22:05:51,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:05:51,955 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-12 22:05:51,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 22:05:52,221 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 22:05:52,237 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 22:05:52,238 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-10-12 22:05:52,238 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 22:05:52,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:05:52 BoogieIcfgContainer [2024-10-12 22:05:52,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 22:05:52,244 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 22:05:52,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 22:05:52,245 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 22:05:52,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:05:44" (3/4) ... [2024-10-12 22:05:52,249 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 22:05:52,257 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-12 22:05:52,257 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 22:05:52,257 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 22:05:52,258 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 22:05:52,349 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 22:05:52,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 22:05:52,350 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 22:05:52,351 INFO L158 Benchmark]: Toolchain (without parser) took 8702.47ms. Allocated memory was 62.9MB in the beginning and 197.1MB in the end (delta: 134.2MB). Free memory was 32.6MB in the beginning and 144.0MB in the end (delta: -111.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,351 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory is still 28.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:52,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.34ms. Allocated memory is still 62.9MB. Free memory was 32.5MB in the beginning and 36.1MB in the end (delta: -3.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.36ms. Allocated memory is still 62.9MB. Free memory was 36.1MB in the beginning and 34.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:05:52,353 INFO L158 Benchmark]: Boogie Preprocessor took 59.98ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,353 INFO L158 Benchmark]: RCFGBuilder took 425.60ms. Allocated memory is still 62.9MB. Free memory was 32.3MB in the beginning and 34.2MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,353 INFO L158 Benchmark]: TraceAbstraction took 7682.45ms. Allocated memory was 62.9MB in the beginning and 197.1MB in the end (delta: 134.2MB). Free memory was 33.6MB in the beginning and 149.2MB in the end (delta: -115.6MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,353 INFO L158 Benchmark]: Witness Printer took 106.25ms. Allocated memory is still 197.1MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 22:05:52,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory is still 28.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.34ms. Allocated memory is still 62.9MB. Free memory was 32.5MB in the beginning and 36.1MB in the end (delta: -3.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.36ms. Allocated memory is still 62.9MB. Free memory was 36.1MB in the beginning and 34.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.98ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 425.60ms. Allocated memory is still 62.9MB. Free memory was 32.3MB in the beginning and 34.2MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7682.45ms. Allocated memory was 62.9MB in the beginning and 197.1MB in the end (delta: 134.2MB). Free memory was 33.6MB in the beginning and 149.2MB in the end (delta: -115.6MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. * Witness Printer took 106.25ms. Allocated memory is still 197.1MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 4, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 6 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 93 ConstructedInterpolants, 43 QuantifiedInterpolants, 10768 SizeOfPredicates, 21 NumberOfNonLiveVariables, 248 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 102/234 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: 52]: Loop Invariant Derived loop invariant: ((((((((2 == var_9) && (7 == mask_SORT_3)) && (2 == state_5)) && (1 == var_13)) && (3 == mask_SORT_21)) && (6 == state_18)) && (1 == mask_SORT_1)) || (((((2 == var_9) && (7 == mask_SORT_3)) && (1 == var_13)) && (3 == mask_SORT_21)) && (1 == mask_SORT_1))) RESULT: Ultimate proved your program to be correct! [2024-10-12 22:05:52,387 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