./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/softplus_5_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/softplus_5_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 a966a605a376a7423f0837302dd49b8eac83714d1a5a5b057358f5c771a14c45 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 19:48:54,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 19:48:54,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 19:48:54,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 19:48:54,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 19:48:54,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 19:48:54,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 19:48:54,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 19:48:54,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 19:48:54,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 19:48:54,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 19:48:54,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 19:48:54,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 19:48:54,478 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:48:54,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 19:48:54,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 19:48:54,479 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 -> a966a605a376a7423f0837302dd49b8eac83714d1a5a5b057358f5c771a14c45 [2025-02-07 19:48:54,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 19:48:54,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 19:48:54,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 19:48:54,700 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 19:48:54,700 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 19:48:54,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softplus_5_safe.c-amalgamation.i [2025-02-07 19:48:55,748 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96ba9038e/817f0b19748541c9b4574365f5e1c285/FLAGfe2a32fe6 [2025-02-07 19:48:56,031 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 19:48:56,031 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/softplus_5_safe.c-amalgamation.i [2025-02-07 19:48:56,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96ba9038e/817f0b19748541c9b4574365f5e1c285/FLAGfe2a32fe6 [2025-02-07 19:48:56,310 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96ba9038e/817f0b19748541c9b4574365f5e1c285 [2025-02-07 19:48:56,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 19:48:56,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 19:48:56,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 19:48:56,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 19:48:56,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 19:48:56,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0e4973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56, skipping insertion in model container [2025-02-07 19:48:56,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 19:48:56,744 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-07 19:48:56,746 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/softplus_5_safe.c-amalgamation.i[63168,63181] [2025-02-07 19:48:56,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:48:56,754 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 19:48:56,780 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-07 19:48:56,781 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/softplus_5_safe.c-amalgamation.i[63168,63181] [2025-02-07 19:48:56,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:48:56,856 INFO L204 MainTranslator]: Completed translation [2025-02-07 19:48:56,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56 WrapperNode [2025-02-07 19:48:56,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 19:48:56,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 19:48:56,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 19:48:56,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 19:48:56,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,882 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2025-02-07 19:48:56,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 19:48:56,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 19:48:56,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 19:48:56,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 19:48:56,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,894 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-02-07 19:48:56,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,896 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 19:48:56,899 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 19:48:56,899 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 19:48:56,899 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 19:48:56,899 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (1/1) ... [2025-02-07 19:48:56,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:48:56,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 19:48:56,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 19:48:56,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 19:48:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 19:48:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 19:48:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 19:48:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2025-02-07 19:48:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2025-02-07 19:48:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 19:48:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 19:48:57,005 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 19:48:57,006 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 19:48:57,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88;havoc #t~nondet89; [2025-02-07 19:48:57,080 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-02-07 19:48:57,080 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 19:48:57,087 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 19:48:57,088 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 19:48:57,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:48:57 BoogieIcfgContainer [2025-02-07 19:48:57,089 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 19:48:57,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 19:48:57,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 19:48:57,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 19:48:57,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:48:56" (1/3) ... [2025-02-07 19:48:57,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383f5dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:48:57, skipping insertion in model container [2025-02-07 19:48:57,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:48:56" (2/3) ... [2025-02-07 19:48:57,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383f5dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:48:57, skipping insertion in model container [2025-02-07 19:48:57,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:48:57" (3/3) ... [2025-02-07 19:48:57,097 INFO L128 eAbstractionObserver]: Analyzing ICFG softplus_5_safe.c-amalgamation.i [2025-02-07 19:48:57,112 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 19:48:57,113 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softplus_5_safe.c-amalgamation.i that has 2 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 19:48:57,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 19:48:57,164 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46300a2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 19:48:57,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 19:48:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:48:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:48:57,174 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:48:57,174 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:48:57,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:48:57,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:48:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1244825404, now seen corresponding path program 1 times [2025-02-07 19:48:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 19:48:57,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410172235] [2025-02-07 19:48:57,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:48:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 19:48:57,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:48:57,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:48:57,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:48:57,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 19:48:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 19:48:57,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 19:48:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410172235] [2025-02-07 19:48:57,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410172235] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 19:48:57,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 19:48:57,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 19:48:57,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889679579] [2025-02-07 19:48:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 19:48:57,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 19:48:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 19:48:57,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 19:48:57,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:48:57,302 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:48:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 19:48:57,311 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2025-02-07 19:48:57,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 19:48:57,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-07 19:48:57,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 19:48:57,315 INFO L225 Difference]: With dead ends: 28 [2025-02-07 19:48:57,315 INFO L226 Difference]: Without dead ends: 12 [2025-02-07 19:48:57,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:48:57,319 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 19:48:57,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 19:48:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-07 19:48:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-07 19:48:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:48:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2025-02-07 19:48:57,339 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 14 [2025-02-07 19:48:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 19:48:57,339 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2025-02-07 19:48:57,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:48:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2025-02-07 19:48:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:48:57,340 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:48:57,340 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:48:57,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 19:48:57,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:48:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:48:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash 951422397, now seen corresponding path program 1 times [2025-02-07 19:48:57,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 19:48:57,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310237656] [2025-02-07 19:48:57,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:48:57,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 19:48:57,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:48:57,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:48:57,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:48:57,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:48:57,353 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 19:48:57,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:48:57,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:48:57,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:48:57,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:48:57,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 19:48:57,369 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 19:48:57,370 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 19:48:57,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 19:48:57,373 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 19:48:57,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 19:48:57,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:48:57 BoogieIcfgContainer [2025-02-07 19:48:57,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 19:48:57,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 19:48:57,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 19:48:57,386 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 19:48:57,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:48:57" (3/4) ... [2025-02-07 19:48:57,388 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 19:48:57,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 19:48:57,389 INFO L158 Benchmark]: Toolchain (without parser) took 1076.67ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 61.6MB in the end (delta: 93.1MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2025-02-07 19:48:57,389 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 218.1MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:48:57,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.68ms. Allocated memory is still 201.3MB. Free memory was 154.3MB in the beginning and 97.1MB in the end (delta: 57.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 19:48:57,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.69ms. Allocated memory is still 201.3MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:48:57,390 INFO L158 Benchmark]: Boogie Preprocessor took 15.83ms. Allocated memory is still 201.3MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 19:48:57,390 INFO L158 Benchmark]: IcfgBuilder took 190.27ms. Allocated memory is still 201.3MB. Free memory was 93.6MB in the beginning and 82.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 19:48:57,390 INFO L158 Benchmark]: TraceAbstraction took 295.19ms. Allocated memory is still 201.3MB. Free memory was 81.9MB in the beginning and 61.6MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 19:48:57,390 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 201.3MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:48:57,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 218.1MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.68ms. Allocated memory is still 201.3MB. Free memory was 154.3MB in the beginning and 97.1MB in the end (delta: 57.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.69ms. Allocated memory is still 201.3MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.83ms. Allocated memory is still 201.3MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 190.27ms. Allocated memory is still 201.3MB. Free memory was 93.6MB in the beginning and 82.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 295.19ms. Allocated memory is still 201.3MB. Free memory was 81.9MB in the beginning and 61.6MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 201.3MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 857]: 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 log1pf at line 847, overapproximation of someBinaryFLOATComparisonOperation at line 857, overapproximation of someBinaryFLOATComparisonOperation at line 853, overapproximation of someBinaryArithmeticFLOAToperation at line 852, overapproximation of someBinaryArithmeticFLOAToperation at line 856. Possible FailurePath: [L851] float x1 = __VERIFIER_nondet_float(); [L852] float x2 = x1 + 1e-5f; [L853] COND FALSE !(!(__builtin_islessequal(x1, 88.0f))) [L854] CALL, EXPR softplus(x1) VAL [\old(x)=120] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=120] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=118] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=120, x2=118] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [x1=120, x2=118] [L857] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [x1=120, x2=118] [L857] reach_error() VAL [x1=120, x2=118] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 19:48:57,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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/softplus_5_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 a966a605a376a7423f0837302dd49b8eac83714d1a5a5b057358f5c771a14c45 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 19:48:59,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 19:48:59,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 19:48:59,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 19:48:59,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 19:48:59,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 19:48:59,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 19:48:59,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 19:48:59,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 19:48:59,519 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 19:48:59,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 19:48:59,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 19:48:59,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 19:48:59,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 19:48:59,519 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 19:48:59,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 19:48:59,525 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 19:48:59,526 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 19:48:59,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:48:59,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 19:48:59,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 19:48:59,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 19:48:59,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 19:48:59,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 19:48:59,528 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 -> a966a605a376a7423f0837302dd49b8eac83714d1a5a5b057358f5c771a14c45 [2025-02-07 19:48:59,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 19:48:59,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 19:48:59,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 19:48:59,902 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 19:48:59,902 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 19:48:59,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softplus_5_safe.c-amalgamation.i [2025-02-07 19:49:01,158 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91e7f7061/c3e2a49360ed4209a76cc0064e1d2bb9/FLAG7ab265ac3 [2025-02-07 19:49:01,382 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 19:49:01,383 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/softplus_5_safe.c-amalgamation.i [2025-02-07 19:49:01,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91e7f7061/c3e2a49360ed4209a76cc0064e1d2bb9/FLAG7ab265ac3 [2025-02-07 19:49:01,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91e7f7061/c3e2a49360ed4209a76cc0064e1d2bb9 [2025-02-07 19:49:01,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 19:49:01,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 19:49:01,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 19:49:01,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 19:49:01,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 19:49:01,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410386fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01, skipping insertion in model container [2025-02-07 19:49:01,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 19:49:01,772 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-07 19:49:01,775 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/softplus_5_safe.c-amalgamation.i[63168,63181] [2025-02-07 19:49:01,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:49:01,791 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 19:49:01,834 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-07 19:49:01,835 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/softplus_5_safe.c-amalgamation.i[63168,63181] [2025-02-07 19:49:01,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 19:49:01,947 INFO L204 MainTranslator]: Completed translation [2025-02-07 19:49:01,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01 WrapperNode [2025-02-07 19:49:01,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 19:49:01,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 19:49:01,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 19:49:01,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 19:49:01,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,988 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2025-02-07 19:49:01,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 19:49:01,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 19:49:01,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 19:49:01,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 19:49:01,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:01,997 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,008 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-02-07 19:49:02,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,015 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 19:49:02,023 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 19:49:02,023 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 19:49:02,023 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 19:49:02,024 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (1/1) ... [2025-02-07 19:49:02,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 19:49:02,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 19:49:02,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 19:49:02,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 19:49:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 19:49:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 19:49:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 19:49:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 19:49:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 19:49:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2025-02-07 19:49:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2025-02-07 19:49:02,156 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 19:49:02,158 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 19:49:02,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88;havoc #t~nondet89; [2025-02-07 19:49:03,171 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-02-07 19:49:03,171 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 19:49:03,177 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 19:49:03,177 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 19:49:03,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:49:03 BoogieIcfgContainer [2025-02-07 19:49:03,178 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 19:49:03,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 19:49:03,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 19:49:03,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 19:49:03,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:49:01" (1/3) ... [2025-02-07 19:49:03,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a8005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:49:03, skipping insertion in model container [2025-02-07 19:49:03,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:49:01" (2/3) ... [2025-02-07 19:49:03,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a8005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:49:03, skipping insertion in model container [2025-02-07 19:49:03,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:49:03" (3/3) ... [2025-02-07 19:49:03,186 INFO L128 eAbstractionObserver]: Analyzing ICFG softplus_5_safe.c-amalgamation.i [2025-02-07 19:49:03,195 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 19:49:03,195 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softplus_5_safe.c-amalgamation.i that has 2 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 19:49:03,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 19:49:03,237 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;@1aef758b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 19:49:03,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 19:49:03,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:49:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:49:03,244 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:49:03,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:49:03,245 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:49:03,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:49:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1244825404, now seen corresponding path program 1 times [2025-02-07 19:49:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 19:49:03,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092456955] [2025-02-07 19:49:03,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:49:03,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:49:03,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 19:49:03,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 19:49:03,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 19:49:03,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:49:03,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:49:03,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:49:03,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 19:49:03,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 19:49:03,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 19:49:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 19:49:03,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 19:49:03,469 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 19:49:03,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092456955] [2025-02-07 19:49:03,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092456955] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 19:49:03,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 19:49:03,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 19:49:03,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597016902] [2025-02-07 19:49:03,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 19:49:03,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 19:49:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 19:49:03,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 19:49:03,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:49:03,489 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:49:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 19:49:03,497 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2025-02-07 19:49:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 19:49:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-07 19:49:03,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 19:49:03,501 INFO L225 Difference]: With dead ends: 28 [2025-02-07 19:49:03,501 INFO L226 Difference]: Without dead ends: 12 [2025-02-07 19:49:03,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 19:49:03,504 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 19:49:03,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 19:49:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-07 19:49:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-07 19:49:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 19:49:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2025-02-07 19:49:03,533 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 14 [2025-02-07 19:49:03,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 19:49:03,534 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2025-02-07 19:49:03,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 19:49:03,535 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2025-02-07 19:49:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-07 19:49:03,535 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 19:49:03,535 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 19:49:03,547 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 [2025-02-07 19:49:03,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:49:03,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 19:49:03,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 19:49:03,737 INFO L85 PathProgramCache]: Analyzing trace with hash 951422397, now seen corresponding path program 1 times [2025-02-07 19:49:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 19:49:03,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631000697] [2025-02-07 19:49:03,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 19:49:03,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:49:03,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 19:49:03,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 19:49:03,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 19:49:03,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:49:03,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:49:03,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:49:03,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:49:03,957 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 19:49:03,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-07 19:49:04,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-07 19:49:04,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 19:49:04,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 19:49:04,169 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-07 19:49:04,170 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 19:49:04,171 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 19:49:04,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-02-07 19:49:04,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 19:49:04,378 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 19:49:04,392 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 19:49:04,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:49:04 BoogieIcfgContainer [2025-02-07 19:49:04,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 19:49:04,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 19:49:04,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 19:49:04,421 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 19:49:04,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 07:49:03" (3/4) ... [2025-02-07 19:49:04,423 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 19:49:04,424 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 19:49:04,424 INFO L158 Benchmark]: Toolchain (without parser) took 3017.84ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 88.8MB in the beginning and 187.6MB in the end (delta: -98.8MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2025-02-07 19:49:04,424 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.79ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 73.0MB in the end (delta: 15.6MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.64ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 70.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: Boogie Preprocessor took 28.03ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: IcfgBuilder took 1155.18ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 58.4MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: TraceAbstraction took 1240.99ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 57.9MB in the beginning and 187.7MB in the end (delta: -129.7MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2025-02-07 19:49:04,425 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 218.1MB. Free memory was 187.7MB in the beginning and 187.6MB in the end (delta: 60.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 19:49:04,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.79ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 73.0MB in the end (delta: 15.6MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.64ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 70.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.03ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1155.18ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 58.4MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1240.99ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 57.9MB in the beginning and 187.7MB in the end (delta: -129.7MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 218.1MB. Free memory was 187.7MB in the beginning and 187.6MB in the end (delta: 60.2kB). 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: 857]: 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 log1pf at line 847. Possible FailurePath: [L851] float x1 = __VERIFIER_nondet_float(); [L852] float x2 = x1 + 1e-5f; VAL [x1=1.9999901056289673, x2=2.0] [L853] COND FALSE !(!(__builtin_islessequal(x1, 88.0f))) VAL [x1=1.9999901056289673, x2=2.0] [L854] CALL, EXPR softplus(x1) VAL [\old(x)=1.9999901056289673] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=1.9999901056289673, x2=2.0] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=2.0] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=1.9999901056289673, x2=2.0, y1=-0.00000000000000000005802176981161664] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [derivative=-0.000000000000015904774920043677, x1=1.9999901056289673, x2=2.0] [L857] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [x1=1.9999901056289673, x2=2.0] [L857] reach_error() VAL [x1=1.9999901056289673, x2=2.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 19:49:04,448 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