./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1dd37f77a4dffee86b91224c7c955520c92cbe7ede1508833f89e1827406961d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:31:07,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:31:07,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 12:31:07,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:31:07,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:31:07,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:31:07,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:31:07,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:31:07,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:31:07,437 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:31:07,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:31:07,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:31:07,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:31:07,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:31:07,437 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:31:07,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:31:07,438 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:31:07,439 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:31:07,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 12:31:07,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 12:31:07,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:31:07,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:31:07,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:31:07,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:31:07,440 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dd37f77a4dffee86b91224c7c955520c92cbe7ede1508833f89e1827406961d [2025-03-03 12:31:07,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:31:07,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:31:07,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:31:07,693 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:31:07,693 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:31:07,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i [2025-03-03 12:31:08,870 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9e8da87/64f7d4f24cdc4d1faf48a96784c11f29/FLAG70ea6e335 [2025-03-03 12:31:09,172 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:31:09,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i [2025-03-03 12:31:09,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9e8da87/64f7d4f24cdc4d1faf48a96784c11f29/FLAG70ea6e335 [2025-03-03 12:31:09,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9e8da87/64f7d4f24cdc4d1faf48a96784c11f29 [2025-03-03 12:31:09,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:31:09,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:31:09,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:31:09,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:31:09,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:31:09,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee39ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09, skipping insertion in model container [2025-03-03 12:31:09,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:31:09,628 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:09,628 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:09,631 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i[63145,63158] [2025-03-03 12:31:09,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:31:09,640 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:31:09,676 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:09,676 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:09,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i[63145,63158] [2025-03-03 12:31:09,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:31:09,774 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:31:09,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09 WrapperNode [2025-03-03 12:31:09,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:31:09,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:31:09,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:31:09,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:31:09,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,801 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2025-03-03 12:31:09,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:31:09,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:31:09,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:31:09,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:31:09,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,820 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-03-03 12:31:09,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:31:09,825 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:31:09,825 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:31:09,825 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:31:09,826 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (1/1) ... [2025-03-03 12:31:09,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:31:09,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:31:09,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:31:09,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:31:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 12:31:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 12:31:09,933 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:31:09,935 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:31:09,992 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-03-03 12:31:09,992 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:31:09,998 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:31:09,999 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:31:09,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:09 BoogieIcfgContainer [2025-03-03 12:31:09,999 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:31:10,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:31:10,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:31:10,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:31:10,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:31:09" (1/3) ... [2025-03-03 12:31:10,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d74859b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:31:10, skipping insertion in model container [2025-03-03 12:31:10,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:09" (2/3) ... [2025-03-03 12:31:10,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d74859b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:31:10, skipping insertion in model container [2025-03-03 12:31:10,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:09" (3/3) ... [2025-03-03 12:31:10,007 INFO L128 eAbstractionObserver]: Analyzing ICFG exp_3_safe.c-amalgamation.i [2025-03-03 12:31:10,017 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:31:10,019 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG exp_3_safe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 12:31:10,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:31:10,067 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;@760bd3ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:31:10,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 12:31:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:31:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-03 12:31:10,074 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:31:10,075 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-03 12:31:10,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:31:10,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:31:10,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1211904766, now seen corresponding path program 1 times [2025-03-03 12:31:10,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 12:31:10,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726343753] [2025-03-03 12:31:10,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:31:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 12:31:10,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:10,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:10,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:10,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:31:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:31:10,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 12:31:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726343753] [2025-03-03 12:31:10,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726343753] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:31:10,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:31:10,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 12:31:10,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235725600] [2025-03-03 12:31:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:31:10,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 12:31:10,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 12:31:10,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 12:31:10,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:31:10,203 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) [2025-03-03 12:31:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:31:10,209 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-03-03 12:31:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 12:31:10,211 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 [2025-03-03 12:31:10,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:31:10,215 INFO L225 Difference]: With dead ends: 19 [2025-03-03 12:31:10,215 INFO L226 Difference]: Without dead ends: 7 [2025-03-03 12:31:10,217 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 [2025-03-03 12:31:10,219 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 [2025-03-03 12:31:10,221 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] [2025-03-03 12:31:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-03-03 12:31:10,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-03-03 12:31:10,236 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) [2025-03-03 12:31:10,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-03-03 12:31:10,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-03-03 12:31:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:31:10,240 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-03-03 12:31:10,240 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) [2025-03-03 12:31:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-03-03 12:31:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-03 12:31:10,240 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:31:10,240 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-03 12:31:10,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 12:31:10,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:31:10,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:31:10,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1211934557, now seen corresponding path program 1 times [2025-03-03 12:31:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 12:31:10,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297022322] [2025-03-03 12:31:10,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:31:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 12:31:10,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:10,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:10,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:10,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:31:10,263 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 12:31:10,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:10,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:10,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:10,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:31:10,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 12:31:10,285 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 12:31:10,286 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 12:31:10,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 12:31:10,290 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 12:31:10,297 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 12:31:10,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 12:31:10 BoogieIcfgContainer [2025-03-03 12:31:10,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 12:31:10,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 12:31:10,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 12:31:10,300 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 12:31:10,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:09" (3/4) ... [2025-03-03 12:31:10,302 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 12:31:10,303 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 12:31:10,303 INFO L158 Benchmark]: Toolchain (without parser) took 1086.16ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 89.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2025-03-03 12:31:10,303 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:10,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.71ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 50.9MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-03 12:31:10,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.26ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:10,304 INFO L158 Benchmark]: Boogie Preprocessor took 23.00ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 47.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:31:10,305 INFO L158 Benchmark]: IcfgBuilder took 174.33ms. Allocated memory is still 142.6MB. Free memory was 47.4MB in the beginning and 108.3MB in the end (delta: -60.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2025-03-03 12:31:10,305 INFO L158 Benchmark]: TraceAbstraction took 298.30ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 89.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 12:31:10,305 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 142.6MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:10,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.71ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 50.9MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.26ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.00ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 47.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 174.33ms. Allocated memory is still 142.6MB. Free memory was 47.4MB in the beginning and 108.3MB in the end (delta: -60.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 298.30ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 89.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 142.6MB. Free memory is still 89.1MB. 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: 853]: 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 853, overapproximation of someBinaryFLOATComparisonOperation at line 848, overapproximation of someBinaryArithmeticFLOAToperation at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x1, -88.0f) && __builtin_islessequal(x1, 88.0f))) [L849] float x2 = x1 + 1e-2f; [L850] float y1 = expf(x1); [L851] float y2 = expf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] COND TRUE !(__builtin_isgreaterequal(derivative, y1)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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, 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 [2025-03-03 12:31:10,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1dd37f77a4dffee86b91224c7c955520c92cbe7ede1508833f89e1827406961d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:31:12,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:31:12,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 12:31:12,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:31:12,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:31:12,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:31:12,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:31:12,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:31:12,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:31:12,238 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:31:12,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:31:12,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:31:12,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:31:12,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:31:12,239 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:31:12,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:31:12,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:31:12,239 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:31:12,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 12:31:12,240 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:31:12,241 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:31:12,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 12:31:12,241 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 12:31:12,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:31:12,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:31:12,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:31:12,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:31:12,242 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dd37f77a4dffee86b91224c7c955520c92cbe7ede1508833f89e1827406961d [2025-03-03 12:31:12,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:31:12,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:31:12,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:31:12,585 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:31:12,585 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:31:12,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i [2025-03-03 12:31:13,728 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c7f4132c/c2f273ec13de4f47a8aed8de21b634da/FLAG85d35cc3b [2025-03-03 12:31:13,965 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:31:13,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i [2025-03-03 12:31:13,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c7f4132c/c2f273ec13de4f47a8aed8de21b634da/FLAG85d35cc3b [2025-03-03 12:31:14,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c7f4132c/c2f273ec13de4f47a8aed8de21b634da [2025-03-03 12:31:14,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:31:14,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:31:14,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:31:14,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:31:14,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:31:14,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3591a1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14, skipping insertion in model container [2025-03-03 12:31:14,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:31:14,633 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:14,633 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:14,636 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i[63145,63158] [2025-03-03 12:31:14,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:31:14,647 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:31:14,683 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:14,683 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-03-03 12:31:14,684 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_3_safe.c-amalgamation.i[63145,63158] [2025-03-03 12:31:14,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:31:14,774 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:31:14,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14 WrapperNode [2025-03-03 12:31:14,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:31:14,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:31:14,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:31:14,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:31:14,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,807 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-03-03 12:31:14,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:31:14,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:31:14,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:31:14,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:31:14,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,821 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-03-03 12:31:14,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,828 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:31:14,832 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:31:14,832 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:31:14,832 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:31:14,832 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (1/1) ... [2025-03-03 12:31:14,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:31:14,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:31:14,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:31:14,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:31:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 12:31:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 12:31:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:31:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:31:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:31:14,941 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:31:14,942 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:31:16,104 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-03-03 12:31:16,104 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:31:16,109 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:31:16,109 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:31:16,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:16 BoogieIcfgContainer [2025-03-03 12:31:16,110 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:31:16,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:31:16,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:31:16,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:31:16,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:31:14" (1/3) ... [2025-03-03 12:31:16,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527529e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:31:16, skipping insertion in model container [2025-03-03 12:31:16,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:31:14" (2/3) ... [2025-03-03 12:31:16,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527529e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:31:16, skipping insertion in model container [2025-03-03 12:31:16,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:16" (3/3) ... [2025-03-03 12:31:16,117 INFO L128 eAbstractionObserver]: Analyzing ICFG exp_3_safe.c-amalgamation.i [2025-03-03 12:31:16,126 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:31:16,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG exp_3_safe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 12:31:16,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:31:16,164 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;@25dc672f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:31:16,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 12:31:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:31:16,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-03 12:31:16,171 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:31:16,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-03 12:31:16,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:31:16,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:31:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1211904766, now seen corresponding path program 1 times [2025-03-03 12:31:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:31:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652281816] [2025-03-03 12:31:16,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:31:16,185 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 [2025-03-03 12:31:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:31:16,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 12:31:16,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-03 12:31:16,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:16,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:16,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:16,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:31:16,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 12:31:16,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:31:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:31:16,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:31:16,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:31:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652281816] [2025-03-03 12:31:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652281816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:31:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:31:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 12:31:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867787982] [2025-03-03 12:31:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:31:16,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 12:31:16,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:31:16,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 12:31:16,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:31:16,443 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) [2025-03-03 12:31:16,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:31:16,448 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-03-03 12:31:16,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 12:31:16,449 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 [2025-03-03 12:31:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:31:16,454 INFO L225 Difference]: With dead ends: 19 [2025-03-03 12:31:16,454 INFO L226 Difference]: Without dead ends: 7 [2025-03-03 12:31:16,456 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 [2025-03-03 12:31:16,457 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 [2025-03-03 12:31:16,459 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] [2025-03-03 12:31:16,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-03-03 12:31:16,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-03-03 12:31:16,473 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) [2025-03-03 12:31:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-03-03 12:31:16,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-03-03 12:31:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:31:16,476 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-03-03 12:31:16,476 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) [2025-03-03 12:31:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-03-03 12:31:16,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-03 12:31:16,477 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:31:16,477 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-03 12:31:16,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 12:31:16,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:31:16,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:31:16,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:31:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1211934557, now seen corresponding path program 1 times [2025-03-03 12:31:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:31:16,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915105930] [2025-03-03 12:31:16,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:31:16,678 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 [2025-03-03 12:31:16,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:31:16,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 12:31:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-03 12:31:16,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:16,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:16,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:16,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:31:16,869 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 12:31:16,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-03 12:31:17,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-03 12:31:17,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:31:17,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:31:17,030 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-03 12:31:17,031 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 12:31:17,034 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 12:31:17,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-03-03 12:31:17,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:31:17,238 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 12:31:17,248 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 12:31:17,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 12:31:17 BoogieIcfgContainer [2025-03-03 12:31:17,250 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 12:31:17,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 12:31:17,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 12:31:17,251 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 12:31:17,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:31:16" (3/4) ... [2025-03-03 12:31:17,252 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 12:31:17,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 12:31:17,253 INFO L158 Benchmark]: Toolchain (without parser) took 2966.10ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 59.4MB in the end (delta: 13.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2025-03-03 12:31:17,253 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.73ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 53.9MB in the end (delta: 19.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.10ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: Boogie Preprocessor took 23.28ms. Allocated memory is still 100.7MB. Free memory was 51.1MB in the beginning and 50.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: IcfgBuilder took 1278.15ms. Allocated memory is still 100.7MB. Free memory was 49.5MB in the beginning and 40.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: TraceAbstraction took 1138.75ms. Allocated memory is still 100.7MB. Free memory was 39.9MB in the beginning and 60.0MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:17,254 INFO L158 Benchmark]: Witness Printer took 2.46ms. Allocated memory is still 100.7MB. Free memory was 60.0MB in the beginning and 59.4MB in the end (delta: 630.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:31:17,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.73ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 53.9MB in the end (delta: 19.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.10ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.28ms. Allocated memory is still 100.7MB. Free memory was 51.1MB in the beginning and 50.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1278.15ms. Allocated memory is still 100.7MB. Free memory was 49.5MB in the beginning and 40.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1138.75ms. Allocated memory is still 100.7MB. Free memory was 39.9MB in the beginning and 60.0MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.46ms. Allocated memory is still 100.7MB. Free memory was 60.0MB in the beginning and 59.4MB in the end (delta: 630.9kB). 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: 853]: 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 expf at line 851. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x1, -88.0f) && __builtin_islessequal(x1, 88.0f))) VAL [x1=0.0] [L849] float x2 = x1 + 1e-2f; [L850] float y1 = expf(x1); [L851] float y2 = expf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; VAL [derivative=-200.0, y1=2.0] [L853] COND TRUE !(__builtin_isgreaterequal(derivative, y1)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 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 could not prove your program: unable to determine feasibility of some traces [2025-03-03 12:31:17,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample