./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/loop-acceleration/simple_1-1_abstracted.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 87474cec71c0146c8deced67d68861d5f25c58045bbea0d7c49a7bc27df227ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 13:30:56,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 13:30:56,675 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 13:30:56,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 13:30:56,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 13:30:56,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 13:30:56,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 13:30:56,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 13:30:56,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 13:30:56,703 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 13:30:56,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 13:30:56,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 13:30:56,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 13:30:56,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 13:30:56,704 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 13:30:56,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 13:30:56,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 13:30:56,704 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 13:30:56,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 13:30:56,705 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 13:30:56,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 13:30:56,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 13:30:56,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 13:30:56,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 13:30:56,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 13:30:56,707 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 87474cec71c0146c8deced67d68861d5f25c58045bbea0d7c49a7bc27df227ea [2025-03-03 13:30:56,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 13:30:56,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 13:30:56,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 13:30:56,939 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 13:30:56,940 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 13:30:56,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c [2025-03-03 13:30:58,050 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559faeaf1/4e10fd0fc7584c33bc6d81cd42ee72cc/FLAG77f4b8e11 [2025-03-03 13:30:58,243 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 13:30:58,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/simple_1-1_abstracted.c [2025-03-03 13:30:58,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559faeaf1/4e10fd0fc7584c33bc6d81cd42ee72cc/FLAG77f4b8e11 [2025-03-03 13:30:58,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559faeaf1/4e10fd0fc7584c33bc6d81cd42ee72cc [2025-03-03 13:30:58,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 13:30:58,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 13:30:58,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 13:30:58,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 13:30:58,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 13:30:58,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699ed6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58, skipping insertion in model container [2025-03-03 13:30:58,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 13:30:58,728 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/loop-acceleration/simple_1-1_abstracted.c[740,753] [2025-03-03 13:30:58,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 13:30:58,745 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 13:30:58,753 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/loop-acceleration/simple_1-1_abstracted.c[740,753] [2025-03-03 13:30:58,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 13:30:58,768 INFO L204 MainTranslator]: Completed translation [2025-03-03 13:30:58,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58 WrapperNode [2025-03-03 13:30:58,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 13:30:58,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 13:30:58,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 13:30:58,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 13:30:58,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,788 INFO L138 Inliner]: procedures = 20, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2025-03-03 13:30:58,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 13:30:58,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 13:30:58,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 13:30:58,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 13:30:58,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,809 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]. [2025-03-03 13:30:58,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,812 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 13:30:58,816 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 13:30:58,817 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 13:30:58,817 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 13:30:58,817 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (1/1) ... [2025-03-03 13:30:58,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 13:30:58,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 13:30:58,844 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) [2025-03-03 13:30:58,847 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 [2025-03-03 13:30:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 13:30:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 13:30:58,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 13:30:58,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 13:30:58,908 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 13:30:58,910 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 13:30:59,000 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-03 13:30:59,001 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 13:30:59,009 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 13:30:59,009 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 13:30:59,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 01:30:59 BoogieIcfgContainer [2025-03-03 13:30:59,009 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 13:30:59,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 13:30:59,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 13:30:59,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 13:30:59,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 01:30:58" (1/3) ... [2025-03-03 13:30:59,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367587ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 01:30:59, skipping insertion in model container [2025-03-03 13:30:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 01:30:58" (2/3) ... [2025-03-03 13:30:59,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367587ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 01:30:59, skipping insertion in model container [2025-03-03 13:30:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 01:30:59" (3/3) ... [2025-03-03 13:30:59,016 INFO L128 eAbstractionObserver]: Analyzing ICFG simple_1-1_abstracted.c [2025-03-03 13:30:59,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 13:30:59,029 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG simple_1-1_abstracted.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 13:30:59,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 13:30:59,085 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;@226ecfa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 13:30:59,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 13:30:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) 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) [2025-03-03 13:30:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-03 13:30:59,093 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 13:30:59,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-03 13:30:59,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 13:30:59,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 13:30:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1211904766, now seen corresponding path program 1 times [2025-03-03 13:30:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 13:30:59,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840339206] [2025-03-03 13:30:59,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 13:30:59,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 13:30:59,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 13:30:59,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 13:30:59,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 13:30:59,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 13:30:59,178 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 13:30:59,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 13:30:59,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 13:30:59,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 13:30:59,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 13:30:59,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 13:30:59,208 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 13:30:59,209 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 13:30:59,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 13:30:59,214 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 13:30:59,226 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 13:30:59,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 01:30:59 BoogieIcfgContainer [2025-03-03 13:30:59,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 13:30:59,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 13:30:59,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 13:30:59,230 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 13:30:59,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 01:30:59" (3/4) ... [2025-03-03 13:30:59,231 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-03 13:30:59,259 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-03-03 13:30:59,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 13:30:59,290 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 13:30:59,290 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 13:30:59,291 INFO L158 Benchmark]: Toolchain (without parser) took 675.53ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 65.1MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,291 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 13:30:59,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.93ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.47ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 13:30:59,292 INFO L158 Benchmark]: Boogie Preprocessor took 26.65ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,293 INFO L158 Benchmark]: IcfgBuilder took 193.06ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 83.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,294 INFO L158 Benchmark]: TraceAbstraction took 218.61ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 70.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,294 INFO L158 Benchmark]: Witness Printer took 60.38ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 65.1MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 13:30:59,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.93ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.47ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.65ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 193.06ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 83.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 218.61ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 70.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 60.38ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 65.1MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int x = 0; VAL [x=0] [L26] COND TRUE x < (268435455) [L27] long long int x__VERIFIER_LA_tmp0; [L28] x__VERIFIER_LA_tmp0 = x [L29] long long int __VERIFIER_LA_iterations0; [L30] __VERIFIER_LA_iterations0 = (268435455 - x__VERIFIER_LA_tmp0) / 2L [L31] unsigned int x__VERIFIER_LA_old_tmp0; [L32] x__VERIFIER_LA_old_tmp0 = x [L33] x = (__VERIFIER_LA_iterations0 * 2L) + x__VERIFIER_LA_old_tmp0 [L37] CALL __VERIFIER_assert(x % 2) [L16] COND TRUE !(cond) [L17] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-03 13:30:59,311 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE