./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/float_int_inv_square.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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/float-benchs/float_int_inv_square.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 a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:52:10,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:52:10,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:52:10,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:52:10,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:52:10,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:52:10,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:52:10,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:52:10,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:52:10,569 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:52:10,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:52:10,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:52:10,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:52:10,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:52:10,569 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:52:10,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:52:10,570 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:10,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:52:10,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:10,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:52:10,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:52:10,571 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 -> a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 [2025-01-09 00:52:10,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:52:10,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:52:10,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:52:10,760 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:52:10,761 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:52:10,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_int_inv_square.c [2025-01-09 00:52:11,915 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdb164073/9267641cdfd041e2824e6287da5af2ab/FLAG55fbb90fd [2025-01-09 00:52:12,144 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:52:12,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/float_int_inv_square.c [2025-01-09 00:52:12,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdb164073/9267641cdfd041e2824e6287da5af2ab/FLAG55fbb90fd [2025-01-09 00:52:12,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdb164073/9267641cdfd041e2824e6287da5af2ab [2025-01-09 00:52:12,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:52:12,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:52:12,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:52:12,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:52:12,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:52:12,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3221f481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12, skipping insertion in model container [2025-01-09 00:52:12,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:52:12,604 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/float-benchs/float_int_inv_square.c[488,501] [2025-01-09 00:52:12,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:52:12,626 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:52:12,634 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/float-benchs/float_int_inv_square.c[488,501] [2025-01-09 00:52:12,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:52:12,647 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:52:12,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12 WrapperNode [2025-01-09 00:52:12,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:52:12,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:52:12,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:52:12,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:52:12,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,668 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2025-01-09 00:52:12,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:52:12,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:52:12,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:52:12,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:52:12,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,680 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]. [2025-01-09 00:52:12,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,682 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:52:12,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:52:12,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:52:12,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:52:12,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (1/1) ... [2025-01-09 00:52:12,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:52:12,713 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) [2025-01-09 00:52:12,715 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 [2025-01-09 00:52:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:52:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:52:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:52:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:52:12,766 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:52:12,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:52:12,829 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-01-09 00:52:12,829 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:52:12,838 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:52:12,839 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:52:12,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:12 BoogieIcfgContainer [2025-01-09 00:52:12,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:52:12,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:52:12,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:52:12,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:52:12,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:52:12" (1/3) ... [2025-01-09 00:52:12,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61525a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:12, skipping insertion in model container [2025-01-09 00:52:12,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:12" (2/3) ... [2025-01-09 00:52:12,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61525a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:12, skipping insertion in model container [2025-01-09 00:52:12,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:12" (3/3) ... [2025-01-09 00:52:12,847 INFO L128 eAbstractionObserver]: Analyzing ICFG float_int_inv_square.c [2025-01-09 00:52:12,859 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:52:12,860 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_int_inv_square.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:52:12,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:52:12,913 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;@6dc1d893, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:52:12,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:52:12,916 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) [2025-01-09 00:52:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 00:52:12,920 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:52:12,920 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 00:52:12,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:52:12,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:52:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2025-01-09 00:52:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:52:12,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447925591] [2025-01-09 00:52:12,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:52:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:52:12,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:13,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:13,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:13,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:52:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:52:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:52:13,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447925591] [2025-01-09 00:52:13,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447925591] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:52:13,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:52:13,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 00:52:13,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318223306] [2025-01-09 00:52:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:52:13,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 00:52:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:52:13,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 00:52:13,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 00:52:13,062 INFO L87 Difference]: Start difference. First 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) 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) [2025-01-09 00:52:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:52:13,068 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-01-09 00:52:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 00:52:13,069 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 [2025-01-09 00:52:13,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:52:13,073 INFO L225 Difference]: With dead ends: 19 [2025-01-09 00:52:13,074 INFO L226 Difference]: Without dead ends: 7 [2025-01-09 00:52:13,078 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 [2025-01-09 00:52:13,082 INFO L435 NwaCegarLoop]: 10 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, 10 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 [2025-01-09 00:52:13,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:52:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-01-09 00:52:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-01-09 00:52:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2025-01-09 00:52:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-01-09 00:52:13,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-01-09 00:52:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:52:13,104 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-01-09 00:52:13,104 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) [2025-01-09 00:52:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-01-09 00:52:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 00:52:13,104 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:52:13,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 00:52:13,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:52:13,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:52:13,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:52:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2025-01-09 00:52:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:52:13,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484425504] [2025-01-09 00:52:13,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:52:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:52:13,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:13,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:13,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:13,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:52:13,130 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:52:13,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:13,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:13,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:13,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:52:13,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 00:52:13,148 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:52:13,149 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:52:13,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 00:52:13,153 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 00:52:13,161 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:52:13,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:52:13 BoogieIcfgContainer [2025-01-09 00:52:13,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:52:13,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:52:13,164 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:52:13,164 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:52:13,165 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:12" (3/4) ... [2025-01-09 00:52:13,166 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 00:52:13,167 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:52:13,167 INFO L158 Benchmark]: Toolchain (without parser) took 671.75ms. Allocated memory is still 201.3MB. Free memory was 160.0MB in the beginning and 118.0MB in the end (delta: 42.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 00:52:13,168 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 209.7MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:13,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.58ms. Allocated memory is still 201.3MB. Free memory was 160.0MB in the beginning and 149.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:52:13,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.24ms. Allocated memory is still 201.3MB. Free memory was 149.1MB in the beginning and 148.1MB in the end (delta: 983.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:13,168 INFO L158 Benchmark]: Boogie Preprocessor took 15.98ms. Allocated memory is still 201.3MB. Free memory was 148.1MB in the beginning and 146.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:13,169 INFO L158 Benchmark]: RCFGBuilder took 148.71ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 137.3MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:52:13,169 INFO L158 Benchmark]: TraceAbstraction took 322.26ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 118.0MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:52:13,169 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:13,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 209.7MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.58ms. Allocated memory is still 201.3MB. Free memory was 160.0MB in the beginning and 149.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.24ms. Allocated memory is still 201.3MB. Free memory was 149.1MB in the beginning and 148.1MB in the end (delta: 983.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.98ms. Allocated memory is still 201.3MB. Free memory was 148.1MB in the beginning and 146.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 148.71ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 137.3MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 322.26ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 118.0MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. 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: 11]: 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 22, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L15] int x; [L16] float y, z; [L18] x = __VERIFIER_nondet_int() [L19] CALL assume_abort_if_not(x >= -10 && x <= 10) [L9] COND FALSE !(!cond) [L19] RET assume_abort_if_not(x >= -10 && x <= 10) [L21] y = x*x - 4.f [L22] CALL __VERIFIER_assert(y != 0.f) [L11] COND TRUE !(cond) [L11] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 10 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, 10 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=11occurred 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, 12 NumberOfCodeBlocks, 12 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 [2025-01-09 00:52:13,187 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/float-benchs/float_int_inv_square.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 a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:52:15,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:52:15,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 00:52:15,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:52:15,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:52:15,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:52:15,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:52:15,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:52:15,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:52:15,251 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:52:15,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:52:15,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:52:15,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:52:15,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:52:15,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:52:15,253 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:52:15,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:15,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:15,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:52:15,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:52:15,254 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 -> a3f1488b0e5756e8d9e219e50ec38e84e8e4fac76b2e3a5e1785d4e14d4111d8 [2025-01-09 00:52:15,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:52:15,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:52:15,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:52:15,701 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:52:15,701 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:52:15,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_int_inv_square.c [2025-01-09 00:52:16,868 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3a936578/b5201f3ba07141a7adc87c34d4873cd3/FLAG5e901b94d [2025-01-09 00:52:17,074 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:52:17,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/float_int_inv_square.c [2025-01-09 00:52:17,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3a936578/b5201f3ba07141a7adc87c34d4873cd3/FLAG5e901b94d [2025-01-09 00:52:17,095 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3a936578/b5201f3ba07141a7adc87c34d4873cd3 [2025-01-09 00:52:17,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:52:17,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:52:17,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:52:17,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:52:17,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:52:17,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca4d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17, skipping insertion in model container [2025-01-09 00:52:17,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:52:17,214 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/float-benchs/float_int_inv_square.c[488,501] [2025-01-09 00:52:17,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:52:17,235 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:52:17,243 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/float-benchs/float_int_inv_square.c[488,501] [2025-01-09 00:52:17,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:52:17,259 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:52:17,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17 WrapperNode [2025-01-09 00:52:17,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:52:17,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:52:17,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:52:17,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:52:17,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,281 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2025-01-09 00:52:17,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:52:17,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:52:17,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:52:17,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:52:17,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,302 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]. [2025-01-09 00:52:17,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:52:17,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:52:17,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:52:17,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:52:17,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ... [2025-01-09 00:52:17,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:52:17,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:52:17,333 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) [2025-01-09 00:52:17,342 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 [2025-01-09 00:52:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:52:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 00:52:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:52:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:52:17,396 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:52:17,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:52:18,128 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-01-09 00:52:18,128 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:52:18,134 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:52:18,135 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:52:18,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:18 BoogieIcfgContainer [2025-01-09 00:52:18,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:52:18,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:52:18,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:52:18,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:52:18,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:52:17" (1/3) ... [2025-01-09 00:52:18,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194d8a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:18, skipping insertion in model container [2025-01-09 00:52:18,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (2/3) ... [2025-01-09 00:52:18,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194d8a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:18, skipping insertion in model container [2025-01-09 00:52:18,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:18" (3/3) ... [2025-01-09 00:52:18,143 INFO L128 eAbstractionObserver]: Analyzing ICFG float_int_inv_square.c [2025-01-09 00:52:18,154 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:52:18,155 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_int_inv_square.c that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:52:18,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:52:18,195 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;@63d551e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:52:18,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:52:18,199 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) [2025-01-09 00:52:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 00:52:18,202 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:52:18,202 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 00:52:18,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:52:18,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:52:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2025-01-09 00:52:18,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:52:18,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540690167] [2025-01-09 00:52:18,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:52:18,216 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 [2025-01-09 00:52:18,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:52:18,218 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) [2025-01-09 00:52:18,220 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 [2025-01-09 00:52:18,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:18,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:18,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:18,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:52:18,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 00:52:18,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:52:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:52:18,359 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 00:52:18,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 00:52:18,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540690167] [2025-01-09 00:52:18,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540690167] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:52:18,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:52:18,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 00:52:18,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586167160] [2025-01-09 00:52:18,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:52:18,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 00:52:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 00:52:18,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 00:52:18,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 00:52:18,378 INFO L87 Difference]: Start difference. First 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) 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) [2025-01-09 00:52:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:52:18,385 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-01-09 00:52:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 00:52:18,386 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 [2025-01-09 00:52:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:52:18,390 INFO L225 Difference]: With dead ends: 19 [2025-01-09 00:52:18,390 INFO L226 Difference]: Without dead ends: 7 [2025-01-09 00:52:18,392 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 [2025-01-09 00:52:18,394 INFO L435 NwaCegarLoop]: 10 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, 10 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 [2025-01-09 00:52:18,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:52:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-01-09 00:52:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-01-09 00:52:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2025-01-09 00:52:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-01-09 00:52:18,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-01-09 00:52:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:52:18,417 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-01-09 00:52:18,417 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) [2025-01-09 00:52:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-01-09 00:52:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 00:52:18,418 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:52:18,418 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 00:52:18,424 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-01-09 00:52:18,622 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 [2025-01-09 00:52:18,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:52:18,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:52:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2025-01-09 00:52:18,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:52:18,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409995271] [2025-01-09 00:52:18,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:52:18,627 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 [2025-01-09 00:52:18,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:52:18,629 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) [2025-01-09 00:52:18,631 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 [2025-01-09 00:52:18,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:18,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:18,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:18,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:52:18,686 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:52:18,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 00:52:18,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 00:52:18,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:52:18,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:52:18,736 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 00:52:18,736 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:52:18,737 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:52:18,744 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 [2025-01-09 00:52:18,940 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 [2025-01-09 00:52:18,942 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 00:52:18,958 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:52:18,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:52:18 BoogieIcfgContainer [2025-01-09 00:52:18,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:52:18,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:52:18,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:52:18,961 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:52:18,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:18" (3/4) ... [2025-01-09 00:52:18,962 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 00:52:18,989 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 6. [2025-01-09 00:52:19,028 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 00:52:19,029 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 00:52:19,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:52:19,029 INFO L158 Benchmark]: Toolchain (without parser) took 1931.28ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 46.1MB in the end (delta: 46.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 00:52:19,030 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:19,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.27ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:52:19,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.86ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:19,031 INFO L158 Benchmark]: Boogie Preprocessor took 27.54ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:52:19,031 INFO L158 Benchmark]: RCFGBuilder took 824.63ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 69.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:52:19,031 INFO L158 Benchmark]: TraceAbstraction took 822.84ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 51.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:52:19,031 INFO L158 Benchmark]: Witness Printer took 68.19ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 46.1MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:52:19,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.27ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.86ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.54ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 824.63ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 69.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 822.84ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 51.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 68.19ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 46.1MB in the end (delta: 5.0MB). 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 - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int x; [L16] float y, z; [L18] x = __VERIFIER_nondet_int() [L19] CALL assume_abort_if_not(x >= -10 && x <= 10) [L9] COND FALSE !(!cond) [L19] RET assume_abort_if_not(x >= -10 && x <= 10) [L21] y = x*x - 4.f [L22] CALL __VERIFIER_assert(y != 0.f) [L11] COND TRUE !(cond) [L11] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 10 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, 10 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=11occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 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! [2025-01-09 00:52:19,055 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