./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.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 ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:57:10,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:57:10,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:57:10,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:57:10,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:57:10,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:57:10,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:57:10,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:57:10,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:57:10,942 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:57:10,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:57:10,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:57:10,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:57:10,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:57:10,943 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:57:10,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:57:10,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:57:10,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:57:10,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:57:10,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:57:10,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:57:10,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:57:10,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:57:10,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:57:10,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:57:10,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:57:10,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:57:10,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:57:10,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:57:10,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:57:10,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:57:10,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:57:10,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:57:10,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:57:10,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:57:10,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:57:10,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:57:10,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:57:10,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:57:10,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:57:10,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:57:10,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:57:10,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2024-10-12 17:57:11,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:57:11,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:57:11,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:57:11,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:57:11,188 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:57:11,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:12,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:57:12,639 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:57:12,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:12,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296699957/c2b0101180c14af7a1ce598e7c737056/FLAG36f921df9 [2024-10-12 17:57:12,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296699957/c2b0101180c14af7a1ce598e7c737056 [2024-10-12 17:57:12,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:57:12,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:57:12,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:57:12,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:57:12,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:57:12,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:12" (1/1) ... [2024-10-12 17:57:12,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9a97c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:12, skipping insertion in model container [2024-10-12 17:57:12,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:12" (1/1) ... [2024-10-12 17:57:13,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:57:13,357 WARN L248 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/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-10-12 17:57:13,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:57:13,366 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:57:13,397 WARN L248 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/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-10-12 17:57:13,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:57:13,475 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:57:13,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13 WrapperNode [2024-10-12 17:57:13,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:57:13,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:57:13,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:57:13,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:57:13,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,507 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-12 17:57:13,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:57:13,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:57:13,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:57:13,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:57:13,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,529 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]. [2024-10-12 17:57:13,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:57:13,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:57:13,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:57:13,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:57:13,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (1/1) ... [2024-10-12 17:57:13,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:57:13,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:57:13,567 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) [2024-10-12 17:57:13,574 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 [2024-10-12 17:57:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:57:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:57:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:57:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2024-10-12 17:57:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2024-10-12 17:57:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:57:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:57:13,701 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:57:13,705 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:57:13,787 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-12 17:57:13,788 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:57:13,812 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:57:13,815 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 17:57:13,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:13 BoogieIcfgContainer [2024-10-12 17:57:13,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:57:13,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:57:13,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:57:13,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:57:13,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:57:12" (1/3) ... [2024-10-12 17:57:13,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb65ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:13, skipping insertion in model container [2024-10-12 17:57:13,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:13" (2/3) ... [2024-10-12 17:57:13,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb65ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:13, skipping insertion in model container [2024-10-12 17:57:13,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:13" (3/3) ... [2024-10-12 17:57:13,823 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:13,835 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:57:13,836 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:57:13,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:57:13,883 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;@260d6a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:57:13,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:57:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-10-12 17:57:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 17:57:13,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:57:13,893 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:57:13,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:57:13,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:57:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1179918097, now seen corresponding path program 1 times [2024-10-12 17:57:13,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:57:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100512549] [2024-10-12 17:57:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:57:13,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:57:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:57:13,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 17:57:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:57:14,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-12 17:57:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:57:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 17:57:14,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:57:14,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100512549] [2024-10-12 17:57:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100512549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:57:14,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:57:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:57:14,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868417202] [2024-10-12 17:57:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:57:14,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:57:14,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:57:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:57:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:57:14,035 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:57:14,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:57:14,054 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-10-12 17:57:14,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:57:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 12 [2024-10-12 17:57:14,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:57:14,060 INFO L225 Difference]: With dead ends: 24 [2024-10-12 17:57:14,060 INFO L226 Difference]: Without dead ends: 11 [2024-10-12 17:57:14,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:57:14,064 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:57:14,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:57:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-12 17:57:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-12 17:57:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2024-10-12 17:57:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-10-12 17:57:14,090 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 12 [2024-10-12 17:57:14,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:57:14,090 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-10-12 17:57:14,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:57:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-10-12 17:57:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 17:57:14,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:57:14,091 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:57:14,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:57:14,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:57:14,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:57:14,092 INFO L85 PathProgramCache]: Analyzing trace with hash -478853519, now seen corresponding path program 1 times [2024-10-12 17:57:14,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:57:14,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323023837] [2024-10-12 17:57:14,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:57:14,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:57:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:57:14,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:57:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:57:14,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:57:14,127 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:57:14,129 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:57:14,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 17:57:14,132 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 17:57:14,143 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:57:14,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:57:14 BoogieIcfgContainer [2024-10-12 17:57:14,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:57:14,147 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:57:14,147 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:57:14,147 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:57:14,147 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:13" (3/4) ... [2024-10-12 17:57:14,149 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:57:14,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:57:14,152 INFO L158 Benchmark]: Toolchain (without parser) took 1188.70ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 133.9MB in the beginning and 173.6MB in the end (delta: -39.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,153 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 138.4MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:14,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.02ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 74.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.88ms. Allocated memory is still 167.8MB. Free memory was 74.6MB in the beginning and 71.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,154 INFO L158 Benchmark]: Boogie Preprocessor took 27.32ms. Allocated memory is still 167.8MB. Free memory was 71.7MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,155 INFO L158 Benchmark]: RCFGBuilder took 279.16ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 69.8MB in the beginning and 198.7MB in the end (delta: -129.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,155 INFO L158 Benchmark]: TraceAbstraction took 329.57ms. Allocated memory is still 234.9MB. Free memory was 198.7MB in the beginning and 173.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-12 17:57:14,155 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 234.9MB. Free memory is still 173.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:14,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 138.4MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.02ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 74.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.88ms. Allocated memory is still 167.8MB. Free memory was 74.6MB in the beginning and 71.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.32ms. Allocated memory is still 167.8MB. Free memory was 71.7MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.16ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 69.8MB in the beginning and 198.7MB in the end (delta: -129.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 329.57ms. Allocated memory is still 234.9MB. Free memory was 198.7MB in the beginning and 173.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 234.9MB. Free memory is still 173.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 855, 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)=118] [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L853] RET, EXPR logistic(x) VAL [x=118] [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=118] [L854] float z = 1.0f - logistic(-x); [L855] COND TRUE !(y == z) VAL [x=118] [L855] reach_error() VAL [x=118] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 17:57:14,178 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/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.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 ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:57:15,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:57:16,005 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:57:16,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:57:16,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:57:16,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:57:16,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:57:16,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:57:16,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:57:16,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:57:16,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:57:16,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:57:16,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:57:16,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:57:16,041 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:57:16,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:57:16,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:57:16,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:57:16,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:57:16,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:57:16,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:57:16,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:57:16,044 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:57:16,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:57:16,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:57:16,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:57:16,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:57:16,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:57:16,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:57:16,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:57:16,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:57:16,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:57:16,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:57:16,047 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:57:16,047 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:57:16,048 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2024-10-12 17:57:16,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:57:16,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:57:16,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:57:16,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:57:16,309 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:57:16,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:17,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:57:17,725 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:57:17,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:17,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084fdc0a7/2710edc767f44e81b73f5cf60efe3cf9/FLAG1675a4772 [2024-10-12 17:57:18,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084fdc0a7/2710edc767f44e81b73f5cf60efe3cf9 [2024-10-12 17:57:18,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:57:18,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:57:18,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:57:18,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:57:18,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:57:18,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31dff543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18, skipping insertion in model container [2024-10-12 17:57:18,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,134 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:57:18,651 WARN L248 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/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-10-12 17:57:18,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:57:18,663 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:57:18,688 WARN L248 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/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-10-12 17:57:18,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:57:18,830 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:57:18,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18 WrapperNode [2024-10-12 17:57:18,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:57:18,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:57:18,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:57:18,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:57:18,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,876 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-10-12 17:57:18,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:57:18,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:57:18,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:57:18,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:57:18,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,897 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]. [2024-10-12 17:57:18,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:57:18,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:57:18,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:57:18,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:57:18,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (1/1) ... [2024-10-12 17:57:18,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:57:18,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:57:18,942 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) [2024-10-12 17:57:18,945 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 [2024-10-12 17:57:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:57:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:57:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:57:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:57:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:57:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2024-10-12 17:57:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2024-10-12 17:57:19,051 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:57:19,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:57:19,228 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-12 17:57:19,228 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:57:19,254 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:57:19,254 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 17:57:19,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:19 BoogieIcfgContainer [2024-10-12 17:57:19,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:57:19,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:57:19,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:57:19,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:57:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:57:18" (1/3) ... [2024-10-12 17:57:19,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6367255a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:19, skipping insertion in model container [2024-10-12 17:57:19,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:18" (2/3) ... [2024-10-12 17:57:19,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6367255a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:19, skipping insertion in model container [2024-10-12 17:57:19,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:19" (3/3) ... [2024-10-12 17:57:19,263 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2024-10-12 17:57:19,276 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:57:19,276 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:57:19,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:57:19,322 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;@16c25e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:57:19,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:57:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-10-12 17:57:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 17:57:19,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:57:19,329 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:57:19,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:57:19,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:57:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1179918097, now seen corresponding path program 1 times [2024-10-12 17:57:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:57:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715039064] [2024-10-12 17:57:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:57:19,342 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 [2024-10-12 17:57:19,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:57:19,344 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) [2024-10-12 17:57:19,345 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 [2024-10-12 17:57:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:57:19,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:57:19,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:57:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 17:57:19,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:57:19,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:57:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715039064] [2024-10-12 17:57:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715039064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:57:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:57:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:57:19,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568142786] [2024-10-12 17:57:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:57:19,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:57:19,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:57:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:57:19,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:57:19,542 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:57:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:57:19,673 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-10-12 17:57:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:57:19,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 12 [2024-10-12 17:57:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:57:19,679 INFO L225 Difference]: With dead ends: 24 [2024-10-12 17:57:19,680 INFO L226 Difference]: Without dead ends: 11 [2024-10-12 17:57:19,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:57:19,685 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:57:19,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 17:57:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-12 17:57:19,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-12 17:57:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2024-10-12 17:57:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-10-12 17:57:19,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 12 [2024-10-12 17:57:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:57:19,709 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-10-12 17:57:19,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:57:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-10-12 17:57:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 17:57:19,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:57:19,710 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:57:19,716 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 [2024-10-12 17:57:19,911 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 [2024-10-12 17:57:19,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:57:19,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:57:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -478853519, now seen corresponding path program 1 times [2024-10-12 17:57:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:57:19,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291873426] [2024-10-12 17:57:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:57:19,913 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 [2024-10-12 17:57:19,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:57:19,915 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) [2024-10-12 17:57:19,916 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 [2024-10-12 17:57:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:57:20,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:57:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:57:20,152 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-12 17:57:20,153 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:57:20,154 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:57:20,163 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 (3)] Ended with exit code 0 [2024-10-12 17:57:20,355 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 [2024-10-12 17:57:20,358 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 17:57:20,372 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:57:20,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:57:20 BoogieIcfgContainer [2024-10-12 17:57:20,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:57:20,374 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:57:20,374 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:57:20,374 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:57:20,375 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:19" (3/4) ... [2024-10-12 17:57:20,376 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:57:20,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:57:20,377 INFO L158 Benchmark]: Toolchain (without parser) took 2302.49ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 34.4MB in the beginning and 86.7MB in the end (delta: -52.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:20,378 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 73.4MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:20,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.36ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 34.2MB in the beginning and 90.0MB in the end (delta: -55.8MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-10-12 17:57:20,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.46ms. Allocated memory is still 119.5MB. Free memory was 90.0MB in the beginning and 87.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:57:20,379 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 119.5MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:57:20,379 INFO L158 Benchmark]: RCFGBuilder took 338.42ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:57:20,379 INFO L158 Benchmark]: TraceAbstraction took 1114.92ms. Allocated memory is still 119.5MB. Free memory was 71.9MB in the beginning and 87.9MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:20,380 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 86.7MB in the end (delta: 335.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:57:20,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 73.4MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.36ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 34.2MB in the beginning and 90.0MB in the end (delta: -55.8MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.46ms. Allocated memory is still 119.5MB. Free memory was 90.0MB in the beginning and 87.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 119.5MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.42ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1114.92ms. Allocated memory is still 119.5MB. Free memory was 71.9MB in the beginning and 87.9MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 86.7MB in the end (delta: 335.6kB). 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=0.44921875] [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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 17:57:20,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample