./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.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 3aad10085a254dcaf040179ecd6942588b0bc48b7dc5ef8e6965b5c3dd9887c2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:56:56,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:56:56,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:56:56,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:56:56,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:56:56,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:56:56,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:56:56,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:56:56,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:56:56,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:56:56,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:56:56,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:56:56,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:56:56,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:56:56,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:56:56,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:56:56,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:56:56,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:56:56,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:56:56,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:56:56,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:56:56,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:56:56,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:56:56,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:56:56,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:56:56,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:56:56,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:56:56,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:56:56,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:56:56,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:56,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:56:56,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:56:56,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:56:56,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:56:56,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:56:56,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:56:56,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:56:56,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:56:56,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:56:56,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aad10085a254dcaf040179ecd6942588b0bc48b7dc5ef8e6965b5c3dd9887c2 [2024-11-16 11:56:56,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:56:56,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:56:56,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:56:56,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:56:56,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:56:56,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:56:57,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:56:57,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:56:57,735 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:56:57,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5cce7bd/47e8b3a1386c4953ad26e7f17fb1883f/FLAG1f76cc863 [2024-11-16 11:56:58,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5cce7bd/47e8b3a1386c4953ad26e7f17fb1883f [2024-11-16 11:56:58,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:56:58,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:56:58,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:58,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:56:58,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:56:58,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c40aee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58, skipping insertion in model container [2024-11-16 11:56:58,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,141 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:56:58,287 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1260,1273] [2024-11-16 11:56:58,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:58,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:56:58,369 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1260,1273] [2024-11-16 11:56:58,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:58,441 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:56:58,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58 WrapperNode [2024-11-16 11:56:58,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:58,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:58,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:56:58,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:56:58,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,504 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 606 [2024-11-16 11:56:58,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:58,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:56:58,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:56:58,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:56:58,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,567 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 11:56:58,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:56:58,612 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:56:58,612 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:56:58,612 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:56:58,613 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (1/1) ... [2024-11-16 11:56:58,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:58,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:58,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:56:58,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:56:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:56:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:56:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:56:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:56:58,772 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:56:58,773 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:56:59,402 INFO L? ?]: Removed 331 outVars from TransFormulas that were not future-live. [2024-11-16 11:56:59,402 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:56:59,443 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:56:59,444 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:56:59,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:59 BoogieIcfgContainer [2024-11-16 11:56:59,445 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:56:59,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:56:59,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:56:59,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:56:59,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:58" (1/3) ... [2024-11-16 11:56:59,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbcdcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:59, skipping insertion in model container [2024-11-16 11:56:59,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:58" (2/3) ... [2024-11-16 11:56:59,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbcdcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:59, skipping insertion in model container [2024-11-16 11:56:59,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:59" (3/3) ... [2024-11-16 11:56:59,480 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:56:59,494 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:56:59,495 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:56:59,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:56:59,558 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;@62b4e7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:56:59,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:56:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 152 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 11:56:59,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:59,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:56:59,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:59,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1034803163, now seen corresponding path program 1 times [2024-11-16 11:56:59,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:59,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475153742] [2024-11-16 11:56:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:59,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475153742] [2024-11-16 11:56:59,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475153742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:59,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:59,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:59,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100411231] [2024-11-16 11:56:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:59,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:00,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:57:00,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:57:00,010 INFO L87 Difference]: Start difference. First operand has 153 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 152 states have internal predecessors, (224), 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 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:00,133 INFO L93 Difference]: Finished difference Result 285 states and 421 transitions. [2024-11-16 11:57:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:57:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-16 11:57:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:00,142 INFO L225 Difference]: With dead ends: 285 [2024-11-16 11:57:00,142 INFO L226 Difference]: Without dead ends: 150 [2024-11-16 11:57:00,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:57:00,149 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:00,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:57:00,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-16 11:57:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-16 11:57:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.476510067114094) internal successors, (220), 149 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-11-16 11:57:00,179 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 24 [2024-11-16 11:57:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:00,180 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-11-16 11:57:00,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-11-16 11:57:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-16 11:57:00,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:00,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:57:00,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:57:00,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:00,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2135786756, now seen corresponding path program 1 times [2024-11-16 11:57:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752572062] [2024-11-16 11:57:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:00,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:00,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752572062] [2024-11-16 11:57:00,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752572062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:00,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:00,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:57:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81825947] [2024-11-16 11:57:00,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:00,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:57:00,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:00,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:57:00,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:57:00,302 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2024-11-16 11:57:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:00,406 INFO L93 Difference]: Finished difference Result 284 states and 417 transitions. [2024-11-16 11:57:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:57:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 25 [2024-11-16 11:57:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:00,409 INFO L225 Difference]: With dead ends: 284 [2024-11-16 11:57:00,410 INFO L226 Difference]: Without dead ends: 152 [2024-11-16 11:57:00,411 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 [2024-11-16 11:57:00,412 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:00,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:57:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-16 11:57:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-16 11:57:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4701986754966887) internal successors, (222), 151 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 222 transitions. [2024-11-16 11:57:00,426 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 222 transitions. Word has length 25 [2024-11-16 11:57:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:00,427 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 222 transitions. [2024-11-16 11:57:00,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2024-11-16 11:57:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 222 transitions. [2024-11-16 11:57:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 11:57:00,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:00,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:57:00,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:57:00,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:00,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2037636256, now seen corresponding path program 1 times [2024-11-16 11:57:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:00,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537599715] [2024-11-16 11:57:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:00,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537599715] [2024-11-16 11:57:00,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537599715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:00,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:00,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:57:00,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743086105] [2024-11-16 11:57:00,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:00,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:57:00,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:00,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:57:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:57:00,804 INFO L87 Difference]: Start difference. First operand 152 states and 222 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:00,990 INFO L93 Difference]: Finished difference Result 297 states and 435 transitions. [2024-11-16 11:57:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:57:00,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2024-11-16 11:57:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:00,992 INFO L225 Difference]: With dead ends: 297 [2024-11-16 11:57:00,992 INFO L226 Difference]: Without dead ends: 163 [2024-11-16 11:57:00,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:57:00,994 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 230 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:00,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 845 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:57:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-16 11:57:01,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 162. [2024-11-16 11:57:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 161 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 235 transitions. [2024-11-16 11:57:01,004 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 235 transitions. Word has length 26 [2024-11-16 11:57:01,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:01,005 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 235 transitions. [2024-11-16 11:57:01,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 235 transitions. [2024-11-16 11:57:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 11:57:01,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:01,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:57:01,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:57:01,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:01,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash -332518921, now seen corresponding path program 1 times [2024-11-16 11:57:01,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:01,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706712071] [2024-11-16 11:57:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:01,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706712071] [2024-11-16 11:57:01,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706712071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:01,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:01,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:57:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774412419] [2024-11-16 11:57:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:01,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:57:01,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:57:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:57:01,311 INFO L87 Difference]: Start difference. First operand 162 states and 235 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:01,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:01,567 INFO L93 Difference]: Finished difference Result 301 states and 438 transitions. [2024-11-16 11:57:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:57:01,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 27 [2024-11-16 11:57:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:01,569 INFO L225 Difference]: With dead ends: 301 [2024-11-16 11:57:01,569 INFO L226 Difference]: Without dead ends: 167 [2024-11-16 11:57:01,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-16 11:57:01,572 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 234 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:01,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1168 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:57:01,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-16 11:57:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2024-11-16 11:57:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.451219512195122) internal successors, (238), 164 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 238 transitions. [2024-11-16 11:57:01,579 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 238 transitions. Word has length 27 [2024-11-16 11:57:01,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:01,579 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 238 transitions. [2024-11-16 11:57:01,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 238 transitions. [2024-11-16 11:57:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 11:57:01,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:01,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:57:01,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:57:01,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:01,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1474439887, now seen corresponding path program 1 times [2024-11-16 11:57:01,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:01,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603447555] [2024-11-16 11:57:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:01,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 11:57:01,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 11:57:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 11:57:01,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 11:57:01,670 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 11:57:01,671 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 11:57:01,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:57:01,674 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 11:57:01,707 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 11:57:01,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:57:01 BoogieIcfgContainer [2024-11-16 11:57:01,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 11:57:01,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 11:57:01,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 11:57:01,710 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 11:57:01,711 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:59" (3/4) ... [2024-11-16 11:57:01,712 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 11:57:01,713 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 11:57:01,713 INFO L158 Benchmark]: Toolchain (without parser) took 3607.38ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 118.6MB in the beginning and 85.9MB in the end (delta: 32.7MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,714 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 11:57:01,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.65ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 97.5MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.14ms. Allocated memory is still 157.3MB. Free memory was 97.5MB in the beginning and 83.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,714 INFO L158 Benchmark]: Boogie Preprocessor took 106.44ms. Allocated memory is still 157.3MB. Free memory was 83.8MB in the beginning and 76.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,715 INFO L158 Benchmark]: IcfgBuilder took 832.78ms. Allocated memory is still 157.3MB. Free memory was 76.5MB in the beginning and 48.0MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,715 INFO L158 Benchmark]: TraceAbstraction took 2263.12ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 48.0MB in the beginning and 85.9MB in the end (delta: -37.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-16 11:57:01,715 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 222.3MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 11:57:01,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.65ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 97.5MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.14ms. Allocated memory is still 157.3MB. Free memory was 97.5MB in the beginning and 83.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.44ms. Allocated memory is still 157.3MB. Free memory was 83.8MB in the beginning and 76.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 832.78ms. Allocated memory is still 157.3MB. Free memory was 76.5MB in the beginning and 48.0MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2263.12ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 48.0MB in the beginning and 85.9MB in the end (delta: -37.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 222.3MB. Free memory is still 85.9MB. 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 131. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); [L35] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 3); [L36] const SORT_16 msb_SORT_16 = (SORT_16)1 << (3 - 1); [L38] const SORT_1 var_12 = 0; [L39] const SORT_16 var_17 = 0; [L40] const SORT_16 var_20 = 6; [L41] const SORT_16 var_25 = 7; [L42] const SORT_1 var_30 = 1; [L43] const SORT_5 var_34 = 0; [L44] const SORT_7 var_39 = 0; [L45] const SORT_7 var_42 = 8; [L46] const SORT_7 var_44 = 9; [L47] const SORT_7 var_47 = 15; [L48] const SORT_7 var_55 = 12; [L49] const SORT_7 var_58 = 4; [L50] const SORT_7 var_64 = 10; [L51] const SORT_7 var_66 = 11; [L52] const SORT_7 var_69 = 13; [L53] const SORT_7 var_84 = 1; [L54] const SORT_7 var_89 = 5; [L55] const SORT_16 var_114 = 1; [L56] const SORT_16 var_116 = 5; [L57] const SORT_5 var_125 = 1; [L59] SORT_1 input_2; [L60] SORT_1 input_3; [L61] SORT_1 input_4; [L62] SORT_5 input_6; [L63] SORT_7 input_8; [L64] SORT_1 input_9; [L65] SORT_1 input_10; [L66] SORT_1 input_11; [L67] SORT_5 input_93; [L68] SORT_5 input_95; [L69] SORT_5 input_97; [L70] SORT_5 input_99; [L71] SORT_5 input_101; [L72] SORT_5 input_103; [L73] SORT_5 input_105; [L74] SORT_5 input_107; [L75] SORT_5 input_109; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L77] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L78] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L79] SORT_16 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L80] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L80] SORT_5 state_35 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L82] SORT_1 init_14_arg_1 = var_12; [L83] state_13 = init_14_arg_1 [L84] SORT_16 init_19_arg_1 = var_17; [L85] state_18 = init_19_arg_1 [L86] SORT_16 init_24_arg_1 = var_17; [L87] state_23 = init_24_arg_1 [L88] SORT_5 init_36_arg_1 = var_34; [L89] state_35 = init_36_arg_1 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L92] input_2 = __VERIFIER_nondet_uchar() [L93] input_3 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_6 = __VERIFIER_nondet_ushort() [L96] input_8 = __VERIFIER_nondet_uchar() [L97] EXPR input_8 & mask_SORT_7 VAL [mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L97] input_8 = input_8 & mask_SORT_7 [L98] input_9 = __VERIFIER_nondet_uchar() [L99] input_10 = __VERIFIER_nondet_uchar() [L100] input_11 = __VERIFIER_nondet_uchar() [L101] input_93 = __VERIFIER_nondet_ushort() [L102] input_95 = __VERIFIER_nondet_ushort() [L103] input_97 = __VERIFIER_nondet_ushort() [L104] input_99 = __VERIFIER_nondet_ushort() [L105] input_101 = __VERIFIER_nondet_ushort() [L106] input_103 = __VERIFIER_nondet_ushort() [L107] input_105 = __VERIFIER_nondet_ushort() [L108] input_107 = __VERIFIER_nondet_ushort() [L109] input_109 = __VERIFIER_nondet_ushort() [L112] SORT_1 var_15_arg_0 = state_13; [L113] SORT_1 var_15_arg_1 = var_12; [L114] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L115] SORT_16 var_21_arg_0 = state_18; [L116] SORT_16 var_21_arg_1 = var_20; [L117] SORT_1 var_21 = var_21_arg_0 != var_21_arg_1; [L118] SORT_1 var_22_arg_0 = var_15; [L119] SORT_1 var_22_arg_1 = var_21; VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_22_arg_0=1, var_22_arg_1=1, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L120] EXPR var_22_arg_0 | var_22_arg_1 VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L120] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L121] SORT_16 var_26_arg_0 = state_23; [L122] SORT_16 var_26_arg_1 = var_25; [L123] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L124] SORT_1 var_27_arg_0 = var_22; [L125] SORT_1 var_27_arg_1 = var_26; VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_27_arg_0=1, var_27_arg_1=0, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L126] EXPR var_27_arg_0 | var_27_arg_1 VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L126] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L127] SORT_1 var_31_arg_0 = var_27; [L128] SORT_1 var_31 = ~var_31_arg_0; [L129] SORT_1 var_32_arg_0 = var_30; [L130] SORT_1 var_32_arg_1 = var_31; VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_32_arg_0=1, var_32_arg_1=-2, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L131] EXPR var_32_arg_0 & var_32_arg_1 VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L131] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L132] EXPR var_32 & mask_SORT_1 VAL [input_8=0, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_5=4095, mask_SORT_7=15, state_23=0, state_35=0, var_114=1, var_116=5, var_125=1, var_12=0, var_17=0, var_20=6, var_25=7, var_30=1, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L132] var_32 = var_32 & mask_SORT_1 [L133] SORT_1 bad_33_arg_0 = var_32; [L134] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 464 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 464 mSDsluCounter, 3086 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2382 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 836 IncrementalHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 704 mSDtfsCounter, 836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 416 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 [2024-11-16 11:57:01,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.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 3aad10085a254dcaf040179ecd6942588b0bc48b7dc5ef8e6965b5c3dd9887c2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:57:03,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:57:03,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-16 11:57:03,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:57:03,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:57:03,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:57:03,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:57:03,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:57:03,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:57:03,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:57:03,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:57:03,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:57:03,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:57:03,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:57:03,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:57:03,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:57:03,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:57:03,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:57:03,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:57:03,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:57:03,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:57:03,569 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 11:57:03,570 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 11:57:03,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:57:03,570 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 11:57:03,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:57:03,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:57:03,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:57:03,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:57:03,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:57:03,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:57:03,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:57:03,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:57:03,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:57:03,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:57:03,573 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 11:57:03,573 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 11:57:03,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:57:03,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:57:03,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:57:03,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:57:03,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aad10085a254dcaf040179ecd6942588b0bc48b7dc5ef8e6965b5c3dd9887c2 [2024-11-16 11:57:03,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:57:03,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:57:03,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:57:03,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:57:03,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:57:03,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:57:05,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:57:05,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:57:05,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:57:05,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634e21753/8556ee2506b04f7791d4cc287eb3de31/FLAGd422f196a [2024-11-16 11:57:05,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634e21753/8556ee2506b04f7791d4cc287eb3de31 [2024-11-16 11:57:05,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:57:05,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:57:05,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:57:05,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:57:05,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:57:05,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4f466c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05, skipping insertion in model container [2024-11-16 11:57:05,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:57:05,498 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1260,1273] [2024-11-16 11:57:05,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:57:05,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:57:05,601 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1260,1273] [2024-11-16 11:57:05,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:57:05,654 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:57:05,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05 WrapperNode [2024-11-16 11:57:05,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:57:05,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:57:05,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:57:05,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:57:05,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,699 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 326 [2024-11-16 11:57:05,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:57:05,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:57:05,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:57:05,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:57:05,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,740 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 11:57:05,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:57:05,765 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:57:05,765 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:57:05,766 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:57:05,766 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (1/1) ... [2024-11-16 11:57:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:57:05,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:57:05,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:57:05,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:57:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:57:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 11:57:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:57:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:57:05,924 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:57:05,926 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:57:06,184 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-16 11:57:06,184 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:57:06,192 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:57:06,193 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:57:06,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:57:06 BoogieIcfgContainer [2024-11-16 11:57:06,194 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:57:06,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:57:06,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:57:06,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:57:06,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:57:05" (1/3) ... [2024-11-16 11:57:06,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ccec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:57:06, skipping insertion in model container [2024-11-16 11:57:06,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:05" (2/3) ... [2024-11-16 11:57:06,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ccec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:57:06, skipping insertion in model container [2024-11-16 11:57:06,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:57:06" (3/3) ... [2024-11-16 11:57:06,201 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p2.c [2024-11-16 11:57:06,213 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:57:06,213 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:57:06,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:57:06,264 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;@31e30697, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:57:06,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:57:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-16 11:57:06,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:06,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-16 11:57:06,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:06,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1271070717, now seen corresponding path program 1 times [2024-11-16 11:57:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 11:57:06,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760213071] [2024-11-16 11:57:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:06,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 11:57:06,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 11:57:06,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 11:57:06,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-16 11:57:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:06,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 11:57:06,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:57:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:06,529 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:57:06,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 11:57:06,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760213071] [2024-11-16 11:57:06,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760213071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:06,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:06,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:57:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211153004] [2024-11-16 11:57:06,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:06,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:57:06,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 11:57:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:57:06,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:57:06,559 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:06,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:06,592 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2024-11-16 11:57:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:57:06,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-16 11:57:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:06,599 INFO L225 Difference]: With dead ends: 21 [2024-11-16 11:57:06,599 INFO L226 Difference]: Without dead ends: 10 [2024-11-16 11:57:06,601 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 [2024-11-16 11:57:06,603 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:06,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 11:57:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-16 11:57:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-16 11:57:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-16 11:57:06,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2024-11-16 11:57:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:06,625 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-16 11:57:06,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-16 11:57:06,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 11:57:06,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:06,627 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:57:06,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-16 11:57:06,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 11:57:06,828 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:06,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2061110753, now seen corresponding path program 1 times [2024-11-16 11:57:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 11:57:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49031443] [2024-11-16 11:57:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:06,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 11:57:06,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 11:57:06,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 11:57:06,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 11:57:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:06,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-16 11:57:06,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:57:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:07,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:57:07,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:07,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 11:57:07,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49031443] [2024-11-16 11:57:07,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49031443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:57:07,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 11:57:07,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-16 11:57:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024452956] [2024-11-16 11:57:07,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 11:57:07,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 11:57:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 11:57:07,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 11:57:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:57:07,244 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:07,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:07,309 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-16 11:57:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:57:07,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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 9 [2024-11-16 11:57:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:07,310 INFO L225 Difference]: With dead ends: 16 [2024-11-16 11:57:07,311 INFO L226 Difference]: Without dead ends: 13 [2024-11-16 11:57:07,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:57:07,312 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:07,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 11:57:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-16 11:57:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-16 11:57:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2024-11-16 11:57:07,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-16 11:57:07,315 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 9 [2024-11-16 11:57:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:07,315 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-16 11:57:07,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-16 11:57:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 11:57:07,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:07,316 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2024-11-16 11:57:07,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-16 11:57:07,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 11:57:07,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:07,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:07,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1723041149, now seen corresponding path program 2 times [2024-11-16 11:57:07,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 11:57:07,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462826526] [2024-11-16 11:57:07,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 11:57:07,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 11:57:07,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 11:57:07,523 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) [2024-11-16 11:57:07,523 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 [2024-11-16 11:57:07,649 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 11:57:07,649 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 11:57:07,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 11:57:07,657 INFO L278 TraceCheckSpWp]: Computing forward predicates...