./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/neural-networks/logistic_7_unsafe.c-amalgamation.i -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 ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 19:19:13,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 19:19:13,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 19:19:13,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 19:19:13,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 19:19:13,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 19:19:13,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 19:19:13,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 19:19:13,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 19:19:13,416 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 19:19:13,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 19:19:13,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 19:19:13,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 19:19:13,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 19:19:13,417 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 19:19:13,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 19:19:13,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 19:19:13,417 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 19:19:13,418 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 19:19:13,419 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 19:19:13,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 19:19:13,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 19:19:13,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 19:19:13,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:19:13,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 19:19:13,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 19:19:13,420 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 -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2025-02-07 19:19:13,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 19:19:13,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 19:19:13,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 19:19:13,645 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 19:19:13,645 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 19:19:13,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:14,754 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8fe79962c/f5629ec67308499fa2f23b8f98029e3e/FLAGa7b76123d [2025-02-07 19:19:15,060 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 19:19:15,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:15,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8fe79962c/f5629ec67308499fa2f23b8f98029e3e/FLAGa7b76123d [2025-02-07 19:19:15,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8fe79962c/f5629ec67308499fa2f23b8f98029e3e [2025-02-07 19:19:15,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 19:19:15,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 19:19:15,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 19:19:15,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 19:19:15,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 19:19:15,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f62958a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15, skipping insertion in model container [2025-02-07 19:19:15,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 19:19:15,725 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/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2025-02-07 19:19:15,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:19:15,740 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 19:19:15,782 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/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2025-02-07 19:19:15,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:19:15,867 INFO L204 MainTranslator]: Completed translation [2025-02-07 19:19:15,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15 WrapperNode [2025-02-07 19:19:15,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 19:19:15,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 19:19:15,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 19:19:15,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 19:19:15,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,905 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2025-02-07 19:19:15,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 19:19:15,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 19:19:15,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 19:19:15,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 19:19:15,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,924 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]. [2025-02-07 19:19:15,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,927 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 19:19:15,929 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 19:19:15,930 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 19:19:15,930 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 19:19:15,930 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (1/1) ... [2025-02-07 19:19:15,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:19:15,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 19:19:15,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 19:19:15,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 19:19:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 19:19:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 19:19:15,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 19:19:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2025-02-07 19:19:15,971 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2025-02-07 19:19:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 19:19:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 19:19:16,029 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 19:19:16,030 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 19:19:16,058 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88; [2025-02-07 19:19:16,102 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-02-07 19:19:16,102 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 19:19:16,124 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 19:19:16,125 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 19:19:16,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:16 BoogieIcfgContainer [2025-02-07 19:19:16,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 19:19:16,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 19:19:16,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 19:19:16,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 19:19:16,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:19:15" (1/3) ... [2025-02-07 19:19:16,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3b0714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:19:16, skipping insertion in model container [2025-02-07 19:19:16,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:15" (2/3) ... [2025-02-07 19:19:16,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3b0714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:19:16, skipping insertion in model container [2025-02-07 19:19:16,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:16" (3/3) ... [2025-02-07 19:19:16,134 INFO L128 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:16,144 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 19:19:16,145 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG logistic_7_unsafe.c-amalgamation.i that has 2 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 19:19:16,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 19:19:16,188 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;@40e9c6fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 19:19:16,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 19:19:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:19:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:19:16,196 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:19:16,197 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:19:16,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:19:16,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:19:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1244825404, now seen corresponding path program 1 times [2025-02-07 19:19:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 19:19:16,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281482503] [2025-02-07 19:19:16,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:19:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 19:19:16,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:16,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:16,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:16,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 19:19:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 19:19:16,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 19:19:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281482503] [2025-02-07 19:19:16,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281482503] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 19:19:16,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 19:19:16,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 19:19:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491936769] [2025-02-07 19:19:16,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 19:19:16,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 19:19:16,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 19:19:16,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 19:19:16,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:19:16,315 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:19:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 19:19:16,322 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2025-02-07 19:19:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 19:19:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-07 19:19:16,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 19:19:16,326 INFO L225 Difference]: With dead ends: 28 [2025-02-07 19:19:16,326 INFO L226 Difference]: Without dead ends: 12 [2025-02-07 19:19:16,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:19:16,329 INFO L435 NwaCegarLoop]: 15 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, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 19:19:16,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 19:19:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-07 19:19:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-07 19:19:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:19:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2025-02-07 19:19:16,347 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 14 [2025-02-07 19:19:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 19:19:16,348 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2025-02-07 19:19:16,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:19:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2025-02-07 19:19:16,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:19:16,348 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:19:16,348 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:19:16,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 19:19:16,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:19:16,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:19:16,349 INFO L85 PathProgramCache]: Analyzing trace with hash 951422397, now seen corresponding path program 1 times [2025-02-07 19:19:16,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 19:19:16,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890186272] [2025-02-07 19:19:16,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:19:16,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 19:19:16,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:16,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:16,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:16,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:19:16,359 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 19:19:16,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:16,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:16,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:16,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:19:16,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 19:19:16,372 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 19:19:16,373 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 19:19:16,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 19:19:16,376 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 19:19:16,385 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 19:19:16,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:19:16 BoogieIcfgContainer [2025-02-07 19:19:16,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 19:19:16,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 19:19:16,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 19:19:16,387 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 19:19:16,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:16" (3/4) ... [2025-02-07 19:19:16,388 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 19:19:16,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 19:19:16,389 INFO L158 Benchmark]: Toolchain (without parser) took 1082.06ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 84.4MB in the end (delta: 21.4MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2025-02-07 19:19:16,390 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:16,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.31ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 50.0MB in the end (delta: 55.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 19:19:16,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.94ms. Allocated memory is still 142.6MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:16,390 INFO L158 Benchmark]: Boogie Preprocessor took 21.60ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 45.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:16,390 INFO L158 Benchmark]: IcfgBuilder took 196.35ms. Allocated memory is still 142.6MB. Free memory was 45.8MB in the beginning and 104.9MB in the end (delta: -59.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2025-02-07 19:19:16,391 INFO L158 Benchmark]: TraceAbstraction took 258.99ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 85.2MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 19:19:16,391 INFO L158 Benchmark]: Witness Printer took 2.38ms. Allocated memory is still 142.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:16,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.31ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 50.0MB in the end (delta: 55.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.94ms. Allocated memory is still 142.6MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.60ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 45.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 196.35ms. Allocated memory is still 142.6MB. Free memory was 45.8MB in the beginning and 104.9MB in the end (delta: -59.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 258.99ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 85.2MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.38ms. Allocated memory is still 142.6MB. Free memory is still 84.4MB. 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: 855]: 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 852, overapproximation of someBinaryFLOATComparisonOperation at line 855, overapproximation of someBinaryArithmeticFLOAToperation at line 847, overapproximation of someBinaryArithmeticFLOAToperation at line 854, overapproximation of someUnaryFLOAToperation at line 854. Possible FailurePath: [L851] float x = __VERIFIER_nondet_float(); [L852] COND FALSE !(!(__builtin_isgreaterequal(x, 0.0f))) [L853] CALL, EXPR logistic(x) VAL [\old(x)=119] [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L853] RET, EXPR logistic(x) VAL [x=119] [L853] float y = logistic(x); [L854] CALL, EXPR logistic(-x) [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L854] RET, EXPR logistic(-x) VAL [x=119] [L854] float z = 1.0f - logistic(-x); [L855] COND TRUE !(y == z) VAL [x=119] [L855] reach_error() VAL [x=119] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 2, 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, 15 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, 15 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=15occurred 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, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 19:19:16,406 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/neural-networks/logistic_7_unsafe.c-amalgamation.i -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 ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 19:19:18,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 19:19:18,824 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 19:19:18,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 19:19:18,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 19:19:18,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 19:19:18,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 19:19:18,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 19:19:18,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 19:19:18,849 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 19:19:18,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 19:19:18,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 19:19:18,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 19:19:18,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 19:19:18,849 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 19:19:18,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 19:19:18,850 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 19:19:18,851 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:19:18,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 19:19:18,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 19:19:18,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 19:19:18,852 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 -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2025-02-07 19:19:19,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 19:19:19,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 19:19:19,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 19:19:19,062 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 19:19:19,062 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 19:19:19,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:20,230 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54ffc7408/bc7bc188087948b5a1d8e0b3cca9db82/FLAGefcfd2a47 [2025-02-07 19:19:20,506 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 19:19:20,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:20,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54ffc7408/bc7bc188087948b5a1d8e0b3cca9db82/FLAGefcfd2a47 [2025-02-07 19:19:20,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54ffc7408/bc7bc188087948b5a1d8e0b3cca9db82 [2025-02-07 19:19:20,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 19:19:20,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 19:19:20,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 19:19:20,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 19:19:20,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 19:19:20,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:19:20" (1/1) ... [2025-02-07 19:19:20,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566cf1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:20, skipping insertion in model container [2025-02-07 19:19:20,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:19:20" (1/1) ... [2025-02-07 19:19:20,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 19:19:21,142 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/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2025-02-07 19:19:21,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:19:21,151 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 19:19:21,179 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/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2025-02-07 19:19:21,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:19:21,272 INFO L204 MainTranslator]: Completed translation [2025-02-07 19:19:21,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21 WrapperNode [2025-02-07 19:19:21,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 19:19:21,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 19:19:21,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 19:19:21,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 19:19:21,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,331 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-02-07 19:19:21,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 19:19:21,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 19:19:21,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 19:19:21,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 19:19:21,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,348 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]. [2025-02-07 19:19:21,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,352 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 19:19:21,359 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 19:19:21,359 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 19:19:21,359 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 19:19:21,363 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (1/1) ... [2025-02-07 19:19:21,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:19:21,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 19:19:21,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 19:19:21,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 19:19:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 19:19:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 19:19:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 19:19:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 19:19:21,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 19:19:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2025-02-07 19:19:21,407 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2025-02-07 19:19:21,466 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 19:19:21,467 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 19:19:21,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88; [2025-02-07 19:19:21,683 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-02-07 19:19:21,683 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 19:19:21,688 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 19:19:21,689 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 19:19:21,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:21 BoogieIcfgContainer [2025-02-07 19:19:21,689 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 19:19:21,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 19:19:21,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 19:19:21,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 19:19:21,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:19:20" (1/3) ... [2025-02-07 19:19:21,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1311c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:19:21, skipping insertion in model container [2025-02-07 19:19:21,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:19:21" (2/3) ... [2025-02-07 19:19:21,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1311c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:19:21, skipping insertion in model container [2025-02-07 19:19:21,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:21" (3/3) ... [2025-02-07 19:19:21,696 INFO L128 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2025-02-07 19:19:21,706 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 19:19:21,708 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG logistic_7_unsafe.c-amalgamation.i that has 2 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 19:19:21,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 19:19:21,742 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;@6c03a794, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 19:19:21,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 19:19:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:19:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:19:21,747 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:19:21,747 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:19:21,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:19:21,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:19:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1244825404, now seen corresponding path program 1 times [2025-02-07 19:19:21,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 19:19:21,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333016416] [2025-02-07 19:19:21,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:19:21,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:19:21,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 19:19:21,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 19:19:21,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 19:19:21,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:21,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:21,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:21,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 19:19:21,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 19:19:21,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 19:19:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 19:19:21,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 19:19:21,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 19:19:21,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333016416] [2025-02-07 19:19:21,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333016416] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 19:19:21,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 19:19:21,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 19:19:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135831705] [2025-02-07 19:19:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 19:19:21,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 19:19:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 19:19:21,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 19:19:21,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:19:21,907 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:19:21,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 19:19:21,915 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2025-02-07 19:19:21,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 19:19:21,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-07 19:19:21,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 19:19:21,919 INFO L225 Difference]: With dead ends: 28 [2025-02-07 19:19:21,919 INFO L226 Difference]: Without dead ends: 12 [2025-02-07 19:19:21,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:19:21,922 INFO L435 NwaCegarLoop]: 15 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, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 19:19:21,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 19:19:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-07 19:19:21,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-07 19:19:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:19:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2025-02-07 19:19:21,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 14 [2025-02-07 19:19:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 19:19:21,941 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2025-02-07 19:19:21,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:19:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2025-02-07 19:19:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:19:21,942 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:19:21,942 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:19:21,948 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 [2025-02-07 19:19:22,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:19:22,143 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:19:22,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:19:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash 951422397, now seen corresponding path program 1 times [2025-02-07 19:19:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 19:19:22,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084555208] [2025-02-07 19:19:22,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:19:22,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:19:22,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 19:19:22,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 19:19:22,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 19:19:22,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:22,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:22,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:22,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:19:22,255 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 19:19:22,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:19:22,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:19:22,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:19:22,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:19:22,355 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-07 19:19:22,356 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 19:19:22,357 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 19:19:22,366 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 (3)] Forceful destruction successful, exit code 0 [2025-02-07 19:19:22,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:19:22,565 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 19:19:22,582 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 19:19:22,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:19:22 BoogieIcfgContainer [2025-02-07 19:19:22,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 19:19:22,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 19:19:22,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 19:19:22,588 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 19:19:22,588 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:19:21" (3/4) ... [2025-02-07 19:19:22,590 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 19:19:22,591 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 19:19:22,591 INFO L158 Benchmark]: Toolchain (without parser) took 1773.15ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 57.1MB in the beginning and 39.9MB in the end (delta: 17.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2025-02-07 19:19:22,592 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:22,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.08ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 24.3MB in the end (delta: 32.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2025-02-07 19:19:22,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 24.3MB in the beginning and 73.4MB in the end (delta: -49.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2025-02-07 19:19:22,593 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 72.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:22,593 INFO L158 Benchmark]: IcfgBuilder took 330.36ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 61.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 19:19:22,594 INFO L158 Benchmark]: TraceAbstraction took 895.31ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 40.4MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 19:19:22,594 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 100.7MB. Free memory was 40.4MB in the beginning and 39.9MB in the end (delta: 483.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:19:22,596 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 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.08ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 24.3MB in the end (delta: 32.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 24.3MB in the beginning and 73.4MB in the end (delta: -49.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 72.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 330.36ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 61.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 895.31ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 40.4MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 100.7MB. Free memory was 40.4MB in the beginning and 39.9MB in the end (delta: 483.9kB). 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: 855]: 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 tanhf at line 847. Possible FailurePath: [L851] float x = __VERIFIER_nondet_float(); [L852] COND FALSE !(!(__builtin_isgreaterequal(x, 0.0f))) VAL [x=0.0] [L853] CALL, EXPR logistic(x) VAL [\old(x)=0.0] [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L853] RET, EXPR logistic(x) VAL [x=0.0] [L853] float y = logistic(x); [L854] CALL, EXPR logistic(-x) VAL [\old(x)=0.0] [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L854] RET, EXPR logistic(-x) VAL [x=0.0, y=0.5] [L854] float z = 1.0f - logistic(-x); [L855] COND TRUE !(y == z) VAL [x=0.0] [L855] reach_error() VAL [x=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, 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, 15 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, 15 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 19:19:22,612 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 Result: UNKNOWN: Overapproximated counterexample