./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/array-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/array-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 229f3e8ce4e3b13e76b58dc42b5f9a4638bd79f9f3aa927499d1d902ea457152 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 06:39:52,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 06:39:52,527 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 06:39:52,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 06:39:52,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 06:39:52,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 06:39:52,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 06:39:52,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 06:39:52,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 06:39:52,560 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 06:39:52,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 06:39:52,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 06:39:52,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 06:39:52,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 06:39:52,562 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 06:39:52,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 06:39:52,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 06:39:52,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 06:39:52,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 06:39:52,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 06:39:52,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 06:39:52,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 06:39:52,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 06:39:52,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 06:39:52,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 06:39:52,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 06:39:52,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 06:39:52,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 06:39:52,568 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 06:39:52,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 06:39:52,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 06:39:52,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 06:39:52,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 06:39:52,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 06:39:52,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 06:39:52,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 06:39:52,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 06:39:52,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 06:39:52,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 06:39:52,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 06:39:52,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 06:39:52,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 06:39:52,572 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 229f3e8ce4e3b13e76b58dc42b5f9a4638bd79f9f3aa927499d1d902ea457152 [2024-11-16 06:39:52,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 06:39:52,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 06:39:52,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 06:39:52,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 06:39:52,860 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 06:39:52,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/array-1.c [2024-11-16 06:39:54,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 06:39:54,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 06:39:54,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-1.c [2024-11-16 06:39:54,496 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdbf4b5f9/a58a12e6b0d6434fbfc0463f46e9001d/FLAG9ad98bbf5 [2024-11-16 06:39:54,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdbf4b5f9/a58a12e6b0d6434fbfc0463f46e9001d [2024-11-16 06:39:54,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 06:39:54,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 06:39:54,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 06:39:54,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 06:39:54,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 06:39:54,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168c7fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54, skipping insertion in model container [2024-11-16 06:39:54,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 06:39:54,724 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/loops/array-1.c[319,332] [2024-11-16 06:39:54,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 06:39:54,752 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 06:39:54,765 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/loops/array-1.c[319,332] [2024-11-16 06:39:54,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 06:39:54,786 INFO L204 MainTranslator]: Completed translation [2024-11-16 06:39:54,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54 WrapperNode [2024-11-16 06:39:54,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 06:39:54,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 06:39:54,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 06:39:54,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 06:39:54,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,818 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2024-11-16 06:39:54,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 06:39:54,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 06:39:54,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 06:39:54,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 06:39:54,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,868 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-16 06:39:54,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,875 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 06:39:54,901 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 06:39:54,902 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 06:39:54,903 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 06:39:54,904 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (1/1) ... [2024-11-16 06:39:54,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 06:39:54,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:39:54,936 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 06:39:54,938 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 06:39:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 06:39:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 06:39:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 06:39:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 06:39:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 06:39:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 06:39:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 06:39:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 06:39:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 06:39:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 06:39:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 06:39:55,068 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 06:39:55,071 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 06:39:55,223 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L17: call ULTIMATE.dealloc(main_~#array~0#1.base, main_~#array~0#1.offset);havoc main_~#array~0#1.base, main_~#array~0#1.offset; [2024-11-16 06:39:55,233 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-16 06:39:55,236 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 06:39:55,248 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 06:39:55,249 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 06:39:55,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:39:55 BoogieIcfgContainer [2024-11-16 06:39:55,250 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 06:39:55,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 06:39:55,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 06:39:55,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 06:39:55,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:39:54" (1/3) ... [2024-11-16 06:39:55,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b8a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:39:55, skipping insertion in model container [2024-11-16 06:39:55,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:39:54" (2/3) ... [2024-11-16 06:39:55,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b8a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:39:55, skipping insertion in model container [2024-11-16 06:39:55,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:39:55" (3/3) ... [2024-11-16 06:39:55,260 INFO L112 eAbstractionObserver]: Analyzing ICFG array-1.c [2024-11-16 06:39:55,276 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 06:39:55,276 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 06:39:55,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 06:39:55,339 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;@3d9fca97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 06:39:55,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 06:39:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 06:39:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-16 06:39:55,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:39:55,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:39:55,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:39:55,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:39:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash 413074033, now seen corresponding path program 1 times [2024-11-16 06:39:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:39:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104917541] [2024-11-16 06:39:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:39:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:39:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:39:55,515 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 06:39:55,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:39:55,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104917541] [2024-11-16 06:39:55,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104917541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 06:39:55,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 06:39:55,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 06:39:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756826246] [2024-11-16 06:39:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:39:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 06:39:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:39:55,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 06:39:55,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 06:39:55,551 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 06:39:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:39:55,563 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2024-11-16 06:39:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 06:39:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-16 06:39:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:39:55,572 INFO L225 Difference]: With dead ends: 25 [2024-11-16 06:39:55,573 INFO L226 Difference]: Without dead ends: 11 [2024-11-16 06:39:55,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 06:39:55,578 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 06:39:55,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 06:39:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-16 06:39:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-16 06:39:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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 06:39:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-11-16 06:39:55,603 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2024-11-16 06:39:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:39:55,603 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-11-16 06:39:55,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 06:39:55,604 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-11-16 06:39:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-16 06:39:55,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:39:55,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:39:55,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 06:39:55,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:39:55,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:39:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash -103557830, now seen corresponding path program 1 times [2024-11-16 06:39:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:39:55,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249058424] [2024-11-16 06:39:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:39:55,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:39:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:39:55,818 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 06:39:55,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:39:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249058424] [2024-11-16 06:39:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249058424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 06:39:55,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 06:39:55,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 06:39:55,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308170578] [2024-11-16 06:39:55,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:39:55,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 06:39:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:39:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 06:39:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 06:39:55,825 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 06:39:55,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:39:55,856 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-16 06:39:55,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 06:39:55,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-16 06:39:55,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:39:55,857 INFO L225 Difference]: With dead ends: 20 [2024-11-16 06:39:55,857 INFO L226 Difference]: Without dead ends: 15 [2024-11-16 06:39:55,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 06:39:55,859 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 06:39:55,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 06:39:55,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-16 06:39:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2024-11-16 06:39:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) 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 06:39:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-16 06:39:55,863 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2024-11-16 06:39:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:39:55,864 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-16 06:39:55,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 06:39:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-16 06:39:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 06:39:55,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:39:55,866 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:39:55,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 06:39:55,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:39:55,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:39:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1062852344, now seen corresponding path program 1 times [2024-11-16 06:39:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:39:55,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211963225] [2024-11-16 06:39:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:39:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:39:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:39:56,476 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 06:39:56,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:39:56,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211963225] [2024-11-16 06:39:56,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211963225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 06:39:56,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288086298] [2024-11-16 06:39:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:39:56,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:39:56,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:39:56,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 06:39:56,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 06:39:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:39:56,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 06:39:56,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 06:39:56,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 06:39:56,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 06:39:56,796 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 06:39:56,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 06:39:57,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2024-11-16 06:39:57,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 06:39:57,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 87 [2024-11-16 06:39:57,217 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-16 06:39:57,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 24 [2024-11-16 06:39:57,231 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-11-16 06:39:57,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2024-11-16 06:39:57,290 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 06:39:57,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288086298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 06:39:57,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 06:39:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2024-11-16 06:39:57,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823368381] [2024-11-16 06:39:57,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 06:39:57,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 06:39:57,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:39:57,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 06:39:57,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-16 06:39:57,293 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 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 06:39:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:39:57,379 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2024-11-16 06:39:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 06:39:57,380 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 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 12 [2024-11-16 06:39:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:39:57,380 INFO L225 Difference]: With dead ends: 19 [2024-11-16 06:39:57,380 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 06:39:57,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-16 06:39:57,382 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 06:39:57,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 06:39:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 06:39:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 06:39:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 06:39:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 06:39:57,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-11-16 06:39:57,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:39:57,384 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 06:39:57,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 15 states have internal predecessors, (28), 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 06:39:57,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 06:39:57,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 06:39:57,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 06:39:57,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 06:39:57,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:39:57,591 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 06:39:57,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 06:39:57,627 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 06:39:57,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 06:39:57 BoogieIcfgContainer [2024-11-16 06:39:57,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 06:39:57,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 06:39:57,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 06:39:57,642 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 06:39:57,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:39:55" (3/4) ... [2024-11-16 06:39:57,645 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 06:39:57,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-16 06:39:57,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 06:39:57,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 06:39:57,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 06:39:57,729 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 06:39:57,729 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 06:39:57,729 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 06:39:57,730 INFO L158 Benchmark]: Toolchain (without parser) took 3211.31ms. Allocated memory is still 163.6MB. Free memory was 95.5MB in the beginning and 94.5MB in the end (delta: 917.7kB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,730 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 06:39:57,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.98ms. Allocated memory is still 163.6MB. Free memory was 95.2MB in the beginning and 82.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.08ms. Allocated memory is still 163.6MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 06:39:57,731 INFO L158 Benchmark]: Boogie Preprocessor took 59.86ms. Allocated memory is still 163.6MB. Free memory was 81.4MB in the beginning and 135.3MB in the end (delta: -53.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,732 INFO L158 Benchmark]: IcfgBuilder took 349.37ms. Allocated memory is still 163.6MB. Free memory was 135.3MB in the beginning and 123.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,732 INFO L158 Benchmark]: TraceAbstraction took 2388.77ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 98.7MB in the end (delta: 24.1MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,732 INFO L158 Benchmark]: Witness Printer took 88.06ms. Allocated memory is still 163.6MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 06:39:57,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.98ms. Allocated memory is still 163.6MB. Free memory was 95.2MB in the beginning and 82.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.08ms. Allocated memory is still 163.6MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.86ms. Allocated memory is still 163.6MB. Free memory was 81.4MB in the beginning and 135.3MB in the end (delta: -53.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * IcfgBuilder took 349.37ms. Allocated memory is still 163.6MB. Free memory was 135.3MB in the beginning and 123.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2388.77ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 98.7MB in the end (delta: 24.1MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 88.06ms. Allocated memory is still 163.6MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 29 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 5 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 06:39:57,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE