./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7a786ae073e026dbbd21689328725a476f652df15b702977675df9b5c10f237 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 02:29:31,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 02:29:31,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 02:29:31,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 02:29:31,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 02:29:31,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 02:29:31,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 02:29:31,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 02:29:31,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 02:29:31,340 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 02:29:31,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 02:29:31,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 02:29:31,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 02:29:31,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 02:29:31,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 02:29:31,343 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:29:31,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:31,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:31,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 02:29:31,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 02:29:31,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 02:29:31,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 02:29:31,345 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a786ae073e026dbbd21689328725a476f652df15b702977675df9b5c10f237 [2025-01-09 02:29:31,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 02:29:31,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 02:29:31,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 02:29:31,592 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 02:29:31,592 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 02:29:31,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:32,701 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ad50189bc/70adb5add0e64deb96094eac560b8444/FLAG54f6269a0 [2025-01-09 02:29:32,963 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 02:29:32,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:32,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ad50189bc/70adb5add0e64deb96094eac560b8444/FLAG54f6269a0 [2025-01-09 02:29:33,271 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ad50189bc/70adb5add0e64deb96094eac560b8444 [2025-01-09 02:29:33,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 02:29:33,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 02:29:33,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 02:29:33,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 02:29:33,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 02:29:33,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d21bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33, skipping insertion in model container [2025-01-09 02:29:33,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 02:29:33,630 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i[63008,63021] [2025-01-09 02:29:33,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:29:33,638 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 02:29:33,673 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i[63008,63021] [2025-01-09 02:29:33,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:29:33,753 INFO L204 MainTranslator]: Completed translation [2025-01-09 02:29:33,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33 WrapperNode [2025-01-09 02:29:33,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 02:29:33,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 02:29:33,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 02:29:33,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 02:29:33,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,785 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2025-01-09 02:29:33,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 02:29:33,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 02:29:33,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 02:29:33,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 02:29:33,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,799 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-01-09 02:29:33,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,802 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 02:29:33,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 02:29:33,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 02:29:33,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 02:29:33,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (1/1) ... [2025-01-09 02:29:33,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:33,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:29:33,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 02:29:33,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 02:29:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 02:29:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 02:29:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 02:29:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 02:29:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 02:29:33,926 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 02:29:33,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 02:29:33,966 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-01-09 02:29:33,966 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 02:29:33,971 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 02:29:33,971 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 02:29:33,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:33 BoogieIcfgContainer [2025-01-09 02:29:33,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 02:29:33,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 02:29:33,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 02:29:33,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 02:29:33,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:29:33" (1/3) ... [2025-01-09 02:29:33,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f58a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:29:33, skipping insertion in model container [2025-01-09 02:29:33,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:33" (2/3) ... [2025-01-09 02:29:33,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f58a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:29:33, skipping insertion in model container [2025-01-09 02:29:33,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:33" (3/3) ... [2025-01-09 02:29:33,979 INFO L128 eAbstractionObserver]: Analyzing ICFG tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:33,989 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 02:29:33,991 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tanh_7_safe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 02:29:34,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 02:29:34,029 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;@24bc11d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 02:29:34,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 02:29:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:34,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 02:29:34,035 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:29:34,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 02:29:34,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:29:34,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:29:34,039 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2025-01-09 02:29:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:29:34,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839886171] [2025-01-09 02:29:34,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:29:34,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:29:34,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:34,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:34,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:34,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:29:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 02:29:34,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 02:29:34,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839886171] [2025-01-09 02:29:34,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839886171] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 02:29:34,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 02:29:34,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 02:29:34,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209675323] [2025-01-09 02:29:34,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 02:29:34,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 02:29:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 02:29:34,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 02:29:34,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:29:34,165 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:34,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 02:29:34,173 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-01-09 02:29:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 02:29:34,174 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-01-09 02:29:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 02:29:34,178 INFO L225 Difference]: With dead ends: 19 [2025-01-09 02:29:34,178 INFO L226 Difference]: Without dead ends: 7 [2025-01-09 02:29:34,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:29:34,184 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 02:29:34,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 02:29:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-01-09 02:29:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-01-09 02:29:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-01-09 02:29:34,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-01-09 02:29:34,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 02:29:34,207 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-01-09 02:29:34,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-01-09 02:29:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 02:29:34,207 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:29:34,208 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 02:29:34,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 02:29:34,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:29:34,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:29:34,209 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2025-01-09 02:29:34,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:29:34,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676343426] [2025-01-09 02:29:34,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:29:34,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:29:34,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:34,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:34,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:34,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 02:29:34,225 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 02:29:34,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:34,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:34,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:34,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 02:29:34,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 02:29:34,249 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 02:29:34,250 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 02:29:34,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 02:29:34,254 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 02:29:34,262 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 02:29:34,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:29:34 BoogieIcfgContainer [2025-01-09 02:29:34,266 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 02:29:34,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 02:29:34,267 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 02:29:34,267 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 02:29:34,268 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:33" (3/4) ... [2025-01-09 02:29:34,269 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 02:29:34,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 02:29:34,271 INFO L158 Benchmark]: Toolchain (without parser) took 996.55ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 65.7MB in the end (delta: 91.9MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2025-01-09 02:29:34,272 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:34,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.69ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 98.6MB in the end (delta: 59.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 02:29:34,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.18ms. Allocated memory is still 201.3MB. Free memory was 98.6MB in the beginning and 96.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:34,273 INFO L158 Benchmark]: Boogie Preprocessor took 20.77ms. Allocated memory is still 201.3MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 02:29:34,274 INFO L158 Benchmark]: RCFGBuilder took 164.60ms. Allocated memory is still 201.3MB. Free memory was 94.8MB in the beginning and 84.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 02:29:34,274 INFO L158 Benchmark]: TraceAbstraction took 293.21ms. Allocated memory is still 201.3MB. Free memory was 84.0MB in the beginning and 65.7MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 02:29:34,274 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 201.3MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:34,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.69ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 98.6MB in the end (delta: 59.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.18ms. Allocated memory is still 201.3MB. Free memory was 98.6MB in the beginning and 96.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.77ms. Allocated memory is still 201.3MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 164.60ms. Allocated memory is still 201.3MB. Free memory was 94.8MB in the beginning and 84.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 293.21ms. Allocated memory is still 201.3MB. Free memory was 84.0MB in the beginning and 65.7MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 201.3MB. Free memory is still 65.7MB. 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: 851]: 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 851, overapproximation of someBinaryFLOATComparisonOperation at line 848, overapproximation of someUnaryFLOAToperation at line 850. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x, 0.0f))) [L849] float y = tanhf(x); [L850] float z = -tanhf(-x); [L851] COND TRUE !(y == z) [L851] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 02:29:34,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7a786ae073e026dbbd21689328725a476f652df15b702977675df9b5c10f237 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 02:29:36,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 02:29:36,245 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 02:29:36,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 02:29:36,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 02:29:36,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 02:29:36,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 02:29:36,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 02:29:36,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 02:29:36,279 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 02:29:36,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 02:29:36,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 02:29:36,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 02:29:36,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 02:29:36,280 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 02:29:36,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 02:29:36,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 02:29:36,280 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 02:29:36,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 02:29:36,282 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:29:36,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:36,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:36,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 02:29:36,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 02:29:36,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 02:29:36,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 02:29:36,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 02:29:36,284 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a786ae073e026dbbd21689328725a476f652df15b702977675df9b5c10f237 [2025-01-09 02:29:36,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 02:29:36,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 02:29:36,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 02:29:36,554 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 02:29:36,555 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 02:29:36,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:37,755 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb5d5f32c/300aa420949d42739768d6941b3faff7/FLAGf707ecb07 [2025-01-09 02:29:38,029 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 02:29:38,032 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:38,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb5d5f32c/300aa420949d42739768d6941b3faff7/FLAGf707ecb07 [2025-01-09 02:29:38,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb5d5f32c/300aa420949d42739768d6941b3faff7 [2025-01-09 02:29:38,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 02:29:38,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 02:29:38,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 02:29:38,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 02:29:38,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 02:29:38,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c09ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38, skipping insertion in model container [2025-01-09 02:29:38,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 02:29:38,428 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i[63008,63021] [2025-01-09 02:29:38,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:29:38,440 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 02:29:38,484 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/tanh_7_safe.c-amalgamation.i[63008,63021] [2025-01-09 02:29:38,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:29:38,634 INFO L204 MainTranslator]: Completed translation [2025-01-09 02:29:38,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38 WrapperNode [2025-01-09 02:29:38,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 02:29:38,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 02:29:38,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 02:29:38,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 02:29:38,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,683 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2025-01-09 02:29:38,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 02:29:38,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 02:29:38,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 02:29:38,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 02:29:38,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,701 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-01-09 02:29:38,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,708 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 02:29:38,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 02:29:38,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 02:29:38,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 02:29:38,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (1/1) ... [2025-01-09 02:29:38,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:29:38,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:29:38,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 02:29:38,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 02:29:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 02:29:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 02:29:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 02:29:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 02:29:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 02:29:38,842 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 02:29:38,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 02:29:38,891 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-01-09 02:29:38,891 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 02:29:38,896 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 02:29:38,897 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 02:29:38,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:38 BoogieIcfgContainer [2025-01-09 02:29:38,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 02:29:38,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 02:29:38,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 02:29:38,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 02:29:38,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:29:38" (1/3) ... [2025-01-09 02:29:38,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107168fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:29:38, skipping insertion in model container [2025-01-09 02:29:38,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:29:38" (2/3) ... [2025-01-09 02:29:38,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107168fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:29:38, skipping insertion in model container [2025-01-09 02:29:38,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:38" (3/3) ... [2025-01-09 02:29:38,905 INFO L128 eAbstractionObserver]: Analyzing ICFG tanh_7_safe.c-amalgamation.i [2025-01-09 02:29:38,915 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 02:29:38,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tanh_7_safe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 02:29:38,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 02:29:38,964 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;@15afb440, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 02:29:38,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 02:29:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 02:29:38,972 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:29:38,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 02:29:38,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:29:38,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:29:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2025-01-09 02:29:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 02:29:38,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817383901] [2025-01-09 02:29:38,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:29:38,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 02:29:38,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 02:29:38,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 02:29:38,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-01-09 02:29:39,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:39,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:39,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:39,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:29:39,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 02:29:39,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 02:29:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 02:29:39,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 02:29:39,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 02:29:39,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817383901] [2025-01-09 02:29:39,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817383901] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 02:29:39,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 02:29:39,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 02:29:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364916933] [2025-01-09 02:29:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 02:29:39,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 02:29:39,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 02:29:39,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 02:29:39,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:29:39,062 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:39,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 02:29:39,068 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-01-09 02:29:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 02:29:39,069 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-01-09 02:29:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 02:29:39,073 INFO L225 Difference]: With dead ends: 19 [2025-01-09 02:29:39,073 INFO L226 Difference]: Without dead ends: 7 [2025-01-09 02:29:39,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:29:39,076 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 02:29:39,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 02:29:39,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-01-09 02:29:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-01-09 02:29:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-01-09 02:29:39,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-01-09 02:29:39,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 02:29:39,092 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-01-09 02:29:39,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 02:29:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-01-09 02:29:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 02:29:39,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:29:39,092 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 02:29:39,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-01-09 02:29:39,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 02:29:39,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:29:39,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:29:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2025-01-09 02:29:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 02:29:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852788016] [2025-01-09 02:29:39,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:29:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 02:29:39,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 02:29:39,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 02:29:39,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-01-09 02:29:39,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:39,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:39,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:39,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 02:29:39,337 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 02:29:39,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 02:29:39,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 02:29:39,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:29:39,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 02:29:39,362 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 02:29:39,362 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 02:29:39,363 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 02:29:39,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-01-09 02:29:39,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 02:29:39,568 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 02:29:39,576 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 02:29:39,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 02:29:39 BoogieIcfgContainer [2025-01-09 02:29:39,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 02:29:39,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 02:29:39,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 02:29:39,581 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 02:29:39,581 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:29:38" (3/4) ... [2025-01-09 02:29:39,583 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 02:29:39,583 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 02:29:39,584 INFO L158 Benchmark]: Toolchain (without parser) took 1510.63ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 55.6MB in the beginning and 48.1MB in the end (delta: 7.5MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2025-01-09 02:29:39,584 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:39,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.18ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 55.4MB in the beginning and 80.5MB in the end (delta: -25.1MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2025-01-09 02:29:39,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.41ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 77.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 02:29:39,585 INFO L158 Benchmark]: Boogie Preprocessor took 31.59ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:39,585 INFO L158 Benchmark]: RCFGBuilder took 181.56ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 67.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 02:29:39,585 INFO L158 Benchmark]: TraceAbstraction took 680.95ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 48.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 02:29:39,586 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 12.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 02:29:39,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.18ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 55.4MB in the beginning and 80.5MB in the end (delta: -25.1MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.41ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 77.8MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.59ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 181.56ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 67.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 680.95ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 48.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 12.6kB). 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: 851]: 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 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x, 0.0f))) [L849] float y = tanhf(x); [L850] float z = -tanhf(-x); [L851] COND TRUE !(y == z) [L851] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 02:29:39,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample