./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:14:37,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:14:37,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 13:14:37,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:14:37,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:14:37,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:14:37,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:14:37,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:14:37,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:14:37,651 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:14:37,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:14:37,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:14:37,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:14:37,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:14:37,653 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:14:37,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:37,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:14:37,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:14:37,654 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-jdk21/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 -> cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 [2025-02-05 13:14:37,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:14:38,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:14:38,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:14:38,008 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:14:38,008 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:14:38,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2025-02-05 13:14:39,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/db8947ff4/86d283f713be4caba67f814535311ce9/FLAGd1c5c6a13 [2025-02-05 13:14:39,586 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:14:39,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2025-02-05 13:14:39,597 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/db8947ff4/86d283f713be4caba67f814535311ce9/FLAGd1c5c6a13 [2025-02-05 13:14:39,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/db8947ff4/86d283f713be4caba67f814535311ce9 [2025-02-05 13:14:39,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:14:39,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:14:39,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:39,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:14:39,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:14:39,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667df326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39, skipping insertion in model container [2025-02-05 13:14:39,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:14:39,832 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2025-02-05 13:14:39,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:39,861 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:14:39,878 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2025-02-05 13:14:39,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:39,898 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:14:39,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39 WrapperNode [2025-02-05 13:14:39,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:39,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:39,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:14:39,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:14:39,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,939 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2025-02-05 13:14:39,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:39,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:14:39,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:14:39,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:14:39,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,965 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]. [2025-02-05 13:14:39,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:14:39,979 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:14:39,980 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:14:39,980 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:14:39,980 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (1/1) ... [2025-02-05 13:14:39,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:40,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:14:40,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:14:40,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:14:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:14:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 13:14:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:14:40,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:14:40,084 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:14:40,085 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:14:40,172 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-05 13:14:40,172 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:14:40,178 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:14:40,179 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:14:40,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:40 BoogieIcfgContainer [2025-02-05 13:14:40,179 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:14:40,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:14:40,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:14:40,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:14:40,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:14:39" (1/3) ... [2025-02-05 13:14:40,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd915e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:40, skipping insertion in model container [2025-02-05 13:14:40,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:39" (2/3) ... [2025-02-05 13:14:40,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd915e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:40, skipping insertion in model container [2025-02-05 13:14:40,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:40" (3/3) ... [2025-02-05 13:14:40,187 INFO L128 eAbstractionObserver]: Analyzing ICFG loop1-2.c [2025-02-05 13:14:40,197 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:14:40,198 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop1-2.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 13:14:40,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:14:40,244 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;@155c8db8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:14:40,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:14:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) [2025-02-05 13:14:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-05 13:14:40,253 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:40,253 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-05 13:14:40,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:40,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1271099483, now seen corresponding path program 1 times [2025-02-05 13:14:40,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:14:40,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902739579] [2025-02-05 13:14:40,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:40,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:14:40,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:14:40,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:14:40,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:40,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:14:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:14:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 13:14:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902739579] [2025-02-05 13:14:40,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902739579] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:14:40,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:14:40,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:14:40,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929823731] [2025-02-05 13:14:40,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:14:40,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:14:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 13:14:40,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:14:40,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:40,372 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-02-05 13:14:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:14:40,379 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-02-05 13:14:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:14:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2025-02-05 13:14:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:14:40,383 INFO L225 Difference]: With dead ends: 20 [2025-02-05 13:14:40,384 INFO L226 Difference]: Without dead ends: 8 [2025-02-05 13:14:40,386 INFO L434 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 [2025-02-05 13:14:40,388 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2025-02-05 13:14:40,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:14:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-02-05 13:14:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-05 13:14:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-05 13:14:40,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2025-02-05 13:14:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:14:40,405 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-05 13:14:40,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-02-05 13:14:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-05 13:14:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 13:14:40,405 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:40,405 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:40,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 13:14:40,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:40,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:40,406 INFO L85 PathProgramCache]: Analyzing trace with hash 748486536, now seen corresponding path program 1 times [2025-02-05 13:14:40,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:14:40,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536240228] [2025-02-05 13:14:40,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:40,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:14:40,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:14:40,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:14:40,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:40,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:40,421 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:14:40,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:14:40,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:14:40,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:40,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:40,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 13:14:40,445 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:14:40,447 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 13:14:40,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 13:14:40,450 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 13:14:40,462 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:14:40,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:14:40 BoogieIcfgContainer [2025-02-05 13:14:40,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:14:40,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:14:40,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:14:40,465 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:14:40,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:40" (3/4) ... [2025-02-05 13:14:40,467 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 13:14:40,468 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:14:40,468 INFO L158 Benchmark]: Toolchain (without parser) took 841.05ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 62.6MB in the end (delta: 42.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-05 13:14:40,469 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:40,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.08ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 94.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:40,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.20ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 930.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:40,469 INFO L158 Benchmark]: Boogie Preprocessor took 33.77ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 92.4MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:40,470 INFO L158 Benchmark]: IcfgBuilder took 199.64ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 81.3MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:14:40,470 INFO L158 Benchmark]: TraceAbstraction took 284.03ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 62.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:14:40,470 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 142.6MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:40,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.08ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 94.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.20ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 930.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.77ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 92.4MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 199.64ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 81.3MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 284.03ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 62.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 142.6MB. Free memory is still 62.6MB. 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: 14]: 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 someBinaryFLOATComparisonOperation at line 37, overapproximation of someBinaryArithmeticFLOAToperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 24. Possible FailurePath: [L20] float x = __VERIFIER_nondet_float() ; [L21] float exp = 1.0 ; [L22] float term = 1.0 ; [L23] unsigned int count = 1 ; [L24] float result = 2*(1/(1-x)) ; [L25] int temp ; VAL [count=1] [L27] COND TRUE 1 [L29] term = term * (x/count) [L30] exp = exp + term [L31] count++ [L33] temp = __VERIFIER_nondet_int() [L34] COND TRUE temp ==0 VAL [count=2] [L37] CALL __VERIFIER_assert( result >= exp ) [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2025-02-05 13:14:40,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:14:42,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:14:42,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 13:14:42,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:14:42,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:14:42,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:14:42,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:14:42,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:14:42,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:14:42,464 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:14:42,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:14:42,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:14:42,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:14:42,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:14:42,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:14:42,466 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:14:42,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:14:42,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:14:42,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:42,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:14:42,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:14:42,467 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:14:42,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:14:42,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:14:42,468 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-jdk21/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 -> cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 [2025-02-05 13:14:42,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:14:42,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:14:42,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:14:42,736 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:14:42,736 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:14:42,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2025-02-05 13:14:43,929 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93ca008c2/c7aac30e80ad4c4b922753ab779b33e8/FLAGb755002bc [2025-02-05 13:14:44,122 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:14:44,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2025-02-05 13:14:44,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93ca008c2/c7aac30e80ad4c4b922753ab779b33e8/FLAGb755002bc [2025-02-05 13:14:44,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93ca008c2/c7aac30e80ad4c4b922753ab779b33e8 [2025-02-05 13:14:44,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:14:44,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:14:44,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:44,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:14:44,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:14:44,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a71983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44, skipping insertion in model container [2025-02-05 13:14:44,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:14:44,267 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2025-02-05 13:14:44,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:44,290 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:14:44,299 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2025-02-05 13:14:44,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:44,314 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:14:44,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44 WrapperNode [2025-02-05 13:14:44,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:44,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:44,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:14:44,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:14:44,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,338 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2025-02-05 13:14:44,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:44,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:14:44,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:14:44,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:14:44,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,355 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]. [2025-02-05 13:14:44,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,360 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:14:44,371 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:14:44,371 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:14:44,371 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:14:44,372 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (1/1) ... [2025-02-05 13:14:44,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:14:44,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:14:44,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:14:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:14:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 13:14:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:14:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:14:44,467 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:14:44,468 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:14:50,496 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-05 13:14:50,496 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:14:50,501 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:14:50,503 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:14:50,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:50 BoogieIcfgContainer [2025-02-05 13:14:50,503 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:14:50,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:14:50,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:14:50,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:14:50,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:14:44" (1/3) ... [2025-02-05 13:14:50,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558310fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:50, skipping insertion in model container [2025-02-05 13:14:50,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:44" (2/3) ... [2025-02-05 13:14:50,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558310fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:50, skipping insertion in model container [2025-02-05 13:14:50,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:50" (3/3) ... [2025-02-05 13:14:50,513 INFO L128 eAbstractionObserver]: Analyzing ICFG loop1-2.c [2025-02-05 13:14:50,522 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:14:50,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop1-2.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 13:14:50,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:14:50,567 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;@6252d1d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:14:50,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:14:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) [2025-02-05 13:14:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-05 13:14:50,576 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:50,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-05 13:14:50,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:50,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1271099483, now seen corresponding path program 1 times [2025-02-05 13:14:50,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:14:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205550373] [2025-02-05 13:14:50,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:50,592 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 [2025-02-05 13:14:50,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:14:50,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:14:50,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:14:50,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:14:50,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:14:50,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:50,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:14:50,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 13:14:50,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:14:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:14:50,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:14:50,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:14:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205550373] [2025-02-05 13:14:50,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205550373] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:14:50,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:14:50,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:14:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329784435] [2025-02-05 13:14:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:14:50,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:14:50,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:14:50,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:14:50,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:50,831 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-02-05 13:14:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:14:50,840 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-02-05 13:14:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:14:50,842 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2025-02-05 13:14:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:14:50,847 INFO L225 Difference]: With dead ends: 20 [2025-02-05 13:14:50,848 INFO L226 Difference]: Without dead ends: 8 [2025-02-05 13:14:50,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:50,854 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2025-02-05 13:14:50,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:14:50,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-02-05 13:14:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-05 13:14:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-05 13:14:50,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2025-02-05 13:14:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:14:50,878 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-05 13:14:50,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-02-05 13:14:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-05 13:14:50,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 13:14:50,878 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:50,878 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:50,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-05 13:14:51,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:14:51,084 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:51,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash 748486536, now seen corresponding path program 1 times [2025-02-05 13:14:51,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:14:51,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480024316] [2025-02-05 13:14:51,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:51,085 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 [2025-02-05 13:14:51,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:14:51,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:14:51,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:14:51,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:14:51,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:14:51,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:51,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:51,427 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:14:51,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 13:14:51,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 13:14:51,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:51,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:51,761 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-05 13:14:51,762 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:14:51,763 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 13:14:51,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:14:51,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:14:51,971 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 13:14:51,981 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:14:51,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:14:51 BoogieIcfgContainer [2025-02-05 13:14:51,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:14:51,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:14:51,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:14:51,984 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:14:51,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:50" (3/4) ... [2025-02-05 13:14:51,985 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-05 13:14:52,012 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 5. [2025-02-05 13:14:52,037 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-05 13:14:52,038 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-05 13:14:52,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:14:52,038 INFO L158 Benchmark]: Toolchain (without parser) took 7892.07ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 42.9MB in the end (delta: 48.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,039 INFO L158 Benchmark]: CDTParser took 2.63ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:52,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.05ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.26ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:52,039 INFO L158 Benchmark]: Boogie Preprocessor took 30.01ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,039 INFO L158 Benchmark]: IcfgBuilder took 6132.49ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,040 INFO L158 Benchmark]: TraceAbstraction took 1477.11ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 48.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,040 INFO L158 Benchmark]: Witness Printer took 54.36ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 42.9MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:52,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.63ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.05ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 80.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.26ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.01ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 6132.49ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1477.11ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 48.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 54.36ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 42.9MB in the end (delta: 5.7MB). 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: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float x = __VERIFIER_nondet_float() ; [L21] float exp = 1.0 ; [L22] float term = 1.0 ; [L23] unsigned int count = 1 ; [L24] float result = 2*(1/(1-x)) ; [L25] int temp ; VAL [count=1, exp=1.0, result=-2.0, term=1.0, x=2.0] [L27] COND TRUE 1 [L29] term = term * (x/count) [L30] exp = exp + term [L31] count++ [L33] temp = __VERIFIER_nondet_int() [L34] COND TRUE temp ==0 VAL [count=2, exp=3.0, result=-2.0, term=2.0, x=2.0] [L37] CALL __VERIFIER_assert( result >= exp ) [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2025-02-05 13:14:52,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE