./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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.fs.icfgbuilder-eval-023d838-m [2024-11-09 21:18:32,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 21:18:33,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 21:18:33,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 21:18:33,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 21:18:33,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 21:18:33,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 21:18:33,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 21:18:33,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 21:18:33,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 21:18:33,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 21:18:33,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 21:18:33,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 21:18:33,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 21:18:33,095 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 21:18:33,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 21:18:33,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 21:18:33,096 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 21:18:33,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 21:18:33,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 21:18:33,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 21:18:33,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 21:18:33,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 21:18:33,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 21:18:33,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 21:18:33,102 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 21:18:33,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 21:18:33,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 21:18:33,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 21:18:33,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 21:18:33,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 21:18:33,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 21:18:33,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:18:33,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 21:18:33,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 21:18:33,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 21:18:33,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 21:18:33,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 21:18:33,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 21:18:33,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 21:18:33,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 21:18:33,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 21:18:33,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2024-11-09 21:18:33,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 21:18:33,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 21:18:33,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 21:18:33,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 21:18:33,385 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 21:18:33,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:34,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 21:18:35,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 21:18:35,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:35,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3ac6bdd/21654a7f73014ddeb03e7b8f1fb43b21/FLAG8bf08a499 [2024-11-09 21:18:35,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e3ac6bdd/21654a7f73014ddeb03e7b8f1fb43b21 [2024-11-09 21:18:35,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 21:18:35,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 21:18:35,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 21:18:35,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 21:18:35,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 21:18:35,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:35" (1/1) ... [2024-11-09 21:18:35,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce7b614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:35, skipping insertion in model container [2024-11-09 21:18:35,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:35" (1/1) ... [2024-11-09 21:18:35,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 21:18:35,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-11-09 21:18:35,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:18:35,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 21:18:36,042 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-11-09 21:18:36,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:18:36,172 INFO L204 MainTranslator]: Completed translation [2024-11-09 21:18:36,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36 WrapperNode [2024-11-09 21:18:36,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 21:18:36,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 21:18:36,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 21:18:36,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 21:18:36,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,271 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-09 21:18:36,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 21:18:36,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 21:18:36,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 21:18:36,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 21:18:36,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,297 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]. [2024-11-09 21:18:36,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,302 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 21:18:36,307 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 21:18:36,308 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 21:18:36,308 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 21:18:36,308 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (1/1) ... [2024-11-09 21:18:36,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:18:36,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 21:18:36,341 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) [2024-11-09 21:18:36,347 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 [2024-11-09 21:18:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 21:18:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 21:18:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 21:18:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2024-11-09 21:18:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2024-11-09 21:18:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 21:18:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 21:18:36,527 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 21:18:36,530 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 21:18:36,577 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88; [2024-11-09 21:18:36,635 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 21:18:36,635 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 21:18:36,648 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 21:18:36,648 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 21:18:36,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:36 BoogieIcfgContainer [2024-11-09 21:18:36,649 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 21:18:36,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 21:18:36,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 21:18:36,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 21:18:36,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:18:35" (1/3) ... [2024-11-09 21:18:36,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c455e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:18:36, skipping insertion in model container [2024-11-09 21:18:36,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:36" (2/3) ... [2024-11-09 21:18:36,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c455e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:18:36, skipping insertion in model container [2024-11-09 21:18:36,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:36" (3/3) ... [2024-11-09 21:18:36,663 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:36,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 21:18:36,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 21:18:36,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 21:18:36,762 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;@78ca64f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 21:18:36,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 21:18:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2024-11-09 21:18:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 21:18:36,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:18:36,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 21:18:36,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:18:36,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:18:36,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1399499029, now seen corresponding path program 1 times [2024-11-09 21:18:36,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 21:18:36,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850020672] [2024-11-09 21:18:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:18:36,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 21:18:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:18:36,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 21:18:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:18:36,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 21:18:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:18:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 21:18:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 21:18:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850020672] [2024-11-09 21:18:36,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850020672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 21:18:36,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 21:18:36,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 21:18:36,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291260240] [2024-11-09 21:18:36,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 21:18:36,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 21:18:36,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 21:18:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 21:18:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 21:18:37,001 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 21:18:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 21:18:37,013 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-09 21:18:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 21:18:37,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15 [2024-11-09 21:18:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 21:18:37,019 INFO L225 Difference]: With dead ends: 31 [2024-11-09 21:18:37,019 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 21:18:37,021 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 [2024-11-09 21:18:37,024 INFO L432 NwaCegarLoop]: 17 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, 17 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 [2024-11-09 21:18:37,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 21:18:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 21:18:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 21:18:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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) [2024-11-09 21:18:37,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-09 21:18:37,056 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2024-11-09 21:18:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 21:18:37,057 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-09 21:18:37,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 21:18:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-09 21:18:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 21:18:37,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:18:37,059 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 21:18:37,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 21:18:37,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:18:37,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:18:37,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1692902036, now seen corresponding path program 1 times [2024-11-09 21:18:37,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 21:18:37,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908275519] [2024-11-09 21:18:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:18:37,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 21:18:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 21:18:37,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 21:18:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 21:18:37,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 21:18:37,126 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 21:18:37,127 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 21:18:37,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 21:18:37,132 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 21:18:37,148 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 21:18:37,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:18:37 BoogieIcfgContainer [2024-11-09 21:18:37,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 21:18:37,156 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 21:18:37,157 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 21:18:37,157 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 21:18:37,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:36" (3/4) ... [2024-11-09 21:18:37,160 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 21:18:37,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 21:18:37,162 INFO L158 Benchmark]: Toolchain (without parser) took 1752.97ms. Allocated memory is still 165.7MB. Free memory was 110.2MB in the beginning and 94.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-09 21:18:37,163 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:37,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.50ms. Allocated memory is still 165.7MB. Free memory was 109.8MB in the beginning and 46.1MB in the end (delta: 63.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-09 21:18:37,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.91ms. Allocated memory is still 165.7MB. Free memory was 45.7MB in the beginning and 132.8MB in the end (delta: -87.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 21:18:37,164 INFO L158 Benchmark]: Boogie Preprocessor took 29.56ms. Allocated memory is still 165.7MB. Free memory was 132.8MB in the beginning and 131.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:37,164 INFO L158 Benchmark]: IcfgBuilder took 342.22ms. Allocated memory is still 165.7MB. Free memory was 131.6MB in the beginning and 120.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 21:18:37,164 INFO L158 Benchmark]: TraceAbstraction took 503.31ms. Allocated memory is still 165.7MB. Free memory was 119.2MB in the beginning and 95.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 21:18:37,165 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 165.7MB. Free memory was 95.0MB in the beginning and 94.1MB in the end (delta: 933.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:37,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.50ms. Allocated memory is still 165.7MB. Free memory was 109.8MB in the beginning and 46.1MB in the end (delta: 63.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.91ms. Allocated memory is still 165.7MB. Free memory was 45.7MB in the beginning and 132.8MB in the end (delta: -87.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.56ms. Allocated memory is still 165.7MB. Free memory was 132.8MB in the beginning and 131.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 342.22ms. Allocated memory is still 165.7MB. Free memory was 131.6MB in the beginning and 120.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 503.31ms. Allocated memory is still 165.7MB. Free memory was 119.2MB in the beginning and 95.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 165.7MB. Free memory was 95.0MB in the beginning and 94.1MB in the end (delta: 933.3kB). 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)=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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 17 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, 17 mSDtfsCounter, 0 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=17occurred 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, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 21:18:37,204 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/11.0.12-open/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 ../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.fs.icfgbuilder-eval-023d838-m [2024-11-09 21:18:39,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 21:18:39,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 21:18:39,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 21:18:39,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 21:18:39,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 21:18:39,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 21:18:39,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 21:18:39,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 21:18:39,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 21:18:39,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 21:18:39,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 21:18:39,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 21:18:39,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 21:18:39,535 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 21:18:39,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 21:18:39,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 21:18:39,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 21:18:39,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 21:18:39,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 21:18:39,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 21:18:39,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 21:18:39,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 21:18:39,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 21:18:39,540 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 21:18:39,540 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 21:18:39,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 21:18:39,540 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 21:18:39,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 21:18:39,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 21:18:39,543 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 21:18:39,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 21:18:39,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 21:18:39,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 21:18:39,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:18:39,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 21:18:39,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 21:18:39,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 21:18:39,546 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 21:18:39,546 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 21:18:39,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 21:18:39,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 21:18:39,547 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 21:18:39,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 21:18:39,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccad69bf2a43109412117cf9af202331a7b762d9bdb0d50b9b04c5553820591c [2024-11-09 21:18:39,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 21:18:39,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 21:18:39,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 21:18:39,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 21:18:39,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 21:18:39,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:41,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 21:18:41,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 21:18:41,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:41,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349019735/8d2bd8cd89f24c02b626745bd912d878/FLAG0e0537349 [2024-11-09 21:18:41,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349019735/8d2bd8cd89f24c02b626745bd912d878 [2024-11-09 21:18:41,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 21:18:41,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 21:18:41,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 21:18:41,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 21:18:41,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 21:18:41,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:41" (1/1) ... [2024-11-09 21:18:41,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527c8698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:41, skipping insertion in model container [2024-11-09 21:18:41,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:18:41" (1/1) ... [2024-11-09 21:18:41,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 21:18:42,567 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-11-09 21:18:42,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:18:42,584 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 21:18:42,635 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/logistic_7_unsafe.c-amalgamation.i[63087,63100] [2024-11-09 21:18:42,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:18:42,782 INFO L204 MainTranslator]: Completed translation [2024-11-09 21:18:42,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42 WrapperNode [2024-11-09 21:18:42,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 21:18:42,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 21:18:42,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 21:18:42,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 21:18:42,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,844 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-09 21:18:42,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 21:18:42,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 21:18:42,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 21:18:42,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 21:18:42,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,867 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]. [2024-11-09 21:18:42,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,876 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 21:18:42,883 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 21:18:42,883 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 21:18:42,883 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 21:18:42,884 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (1/1) ... [2024-11-09 21:18:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:18:42,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 21:18:42,917 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) [2024-11-09 21:18:42,919 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 [2024-11-09 21:18:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 21:18:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 21:18:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 21:18:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 21:18:42,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 21:18:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure logistic [2024-11-09 21:18:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure logistic [2024-11-09 21:18:43,084 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 21:18:43,086 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 21:18:43,254 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88; [2024-11-09 21:18:43,342 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 21:18:43,342 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 21:18:43,354 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 21:18:43,355 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 21:18:43,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:43 BoogieIcfgContainer [2024-11-09 21:18:43,356 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 21:18:43,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 21:18:43,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 21:18:43,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 21:18:43,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:18:41" (1/3) ... [2024-11-09 21:18:43,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b143fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:18:43, skipping insertion in model container [2024-11-09 21:18:43,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:18:42" (2/3) ... [2024-11-09 21:18:43,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b143fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:18:43, skipping insertion in model container [2024-11-09 21:18:43,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:43" (3/3) ... [2024-11-09 21:18:43,367 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_7_unsafe.c-amalgamation.i [2024-11-09 21:18:43,382 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 21:18:43,382 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 21:18:43,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 21:18:43,437 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;@588507b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 21:18:43,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 21:18:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2024-11-09 21:18:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 21:18:43,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:18:43,451 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 21:18:43,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:18:43,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:18:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1399499029, now seen corresponding path program 1 times [2024-11-09 21:18:43,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 21:18:43,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081683129] [2024-11-09 21:18:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:18:43,474 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 [2024-11-09 21:18:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 21:18:43,478 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) [2024-11-09 21:18:43,479 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 [2024-11-09 21:18:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:18:43,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 21:18:43,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 21:18:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 21:18:43,660 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 21:18:43,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 21:18:43,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081683129] [2024-11-09 21:18:43,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081683129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 21:18:43,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 21:18:43,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 21:18:43,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698947747] [2024-11-09 21:18:43,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 21:18:43,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 21:18:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 21:18:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 21:18:43,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 21:18:43,696 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 21:18:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 21:18:43,712 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-09 21:18:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 21:18:43,714 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15 [2024-11-09 21:18:43,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 21:18:43,720 INFO L225 Difference]: With dead ends: 31 [2024-11-09 21:18:43,720 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 21:18:43,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 21:18:43,727 INFO L432 NwaCegarLoop]: 17 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, 17 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 [2024-11-09 21:18:43,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 21:18:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 21:18:43,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 21:18:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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) [2024-11-09 21:18:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-09 21:18:43,753 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2024-11-09 21:18:43,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 21:18:43,753 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-09 21:18:43,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 21:18:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-09 21:18:43,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 21:18:43,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:18:43,755 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 21:18:43,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 21:18:43,955 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 [2024-11-09 21:18:43,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:18:43,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:18:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1692902036, now seen corresponding path program 1 times [2024-11-09 21:18:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 21:18:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158912207] [2024-11-09 21:18:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:18:43,958 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 [2024-11-09 21:18:43,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 21:18:43,961 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) [2024-11-09 21:18:43,962 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 [2024-11-09 21:18:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 21:18:44,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 21:18:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 21:18:44,232 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-09 21:18:44,232 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 21:18:44,234 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 21:18:44,252 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 [2024-11-09 21:18:44,436 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 [2024-11-09 21:18:44,439 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 21:18:44,455 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 21:18:44,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:18:44 BoogieIcfgContainer [2024-11-09 21:18:44,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 21:18:44,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 21:18:44,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 21:18:44,459 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 21:18:44,460 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:18:43" (3/4) ... [2024-11-09 21:18:44,462 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 21:18:44,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 21:18:44,466 INFO L158 Benchmark]: Toolchain (without parser) took 2612.50ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 41.8MB in the beginning and 32.9MB in the end (delta: 8.8MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-09 21:18:44,466 INFO L158 Benchmark]: CDTParser took 1.04ms. Allocated memory is still 52.4MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:44,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 930.90ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 41.6MB in the beginning and 36.6MB in the end (delta: 5.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-09 21:18:44,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.30ms. Allocated memory is still 75.5MB. Free memory was 36.6MB in the beginning and 33.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 21:18:44,468 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 75.5MB. Free memory was 33.8MB in the beginning and 32.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:44,468 INFO L158 Benchmark]: IcfgBuilder took 473.62ms. Allocated memory is still 75.5MB. Free memory was 31.7MB in the beginning and 40.3MB in the end (delta: -8.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 21:18:44,469 INFO L158 Benchmark]: TraceAbstraction took 1100.08ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 33.4MB in the end (delta: 6.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-11-09 21:18:44,469 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 32.9MB in the end (delta: 430.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:18:44,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04ms. Allocated memory is still 52.4MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 930.90ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 41.6MB in the beginning and 36.6MB in the end (delta: 5.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.30ms. Allocated memory is still 75.5MB. Free memory was 36.6MB in the beginning and 33.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 75.5MB. Free memory was 33.8MB in the beginning and 32.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 473.62ms. Allocated memory is still 75.5MB. Free memory was 31.7MB in the beginning and 40.3MB in the end (delta: -8.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1100.08ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 33.4MB in the end (delta: 6.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 75.5MB. Free memory was 33.4MB in the beginning and 32.9MB in the end (delta: 430.5kB). 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 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, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 21:18:44,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample