./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_4_unsafe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 14:14:57,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 14:14:57,778 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 14:14:57,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 14:14:57,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 14:14:57,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 14:14:57,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 14:14:57,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 14:14:57,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 14:14:57,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 14:14:57,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 14:14:57,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 14:14:57,804 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:14:57,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 14:14:57,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 14:14:57,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 14:14:57,805 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 -> 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d [2025-02-05 14:14:58,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 14:14:58,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 14:14:58,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 14:14:58,132 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 14:14:58,132 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 14:14:58,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:14:59,322 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04c18c7f6/b5c29f665a0f4e6c918ec017247299e1/FLAG6b5c2a059 [2025-02-05 14:14:59,652 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 14:14:59,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:14:59,670 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04c18c7f6/b5c29f665a0f4e6c918ec017247299e1/FLAG6b5c2a059 [2025-02-05 14:14:59,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04c18c7f6/b5c29f665a0f4e6c918ec017247299e1 [2025-02-05 14:14:59,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 14:14:59,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 14:14:59,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 14:14:59,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 14:14:59,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 14:14:59,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:14:59" (1/1) ... [2025-02-05 14:14:59,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290797f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:14:59, skipping insertion in model container [2025-02-05 14:14:59,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:14:59" (1/1) ... [2025-02-05 14:14:59,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 14:15:00,159 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 14:15:00,164 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_4_unsafe.c-amalgamation.i[63165,63178] [2025-02-05 14:15:00,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:15:00,174 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 14:15:00,199 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 14:15:00,199 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_4_unsafe.c-amalgamation.i[63165,63178] [2025-02-05 14:15:00,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:15:00,318 INFO L204 MainTranslator]: Completed translation [2025-02-05 14:15:00,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00 WrapperNode [2025-02-05 14:15:00,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 14:15:00,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 14:15:00,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 14:15:00,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 14:15:00,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,349 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2025-02-05 14:15:00,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 14:15:00,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 14:15:00,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 14:15:00,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 14:15:00,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,381 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]. [2025-02-05 14:15:00,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,397 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 14:15:00,405 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 14:15:00,405 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 14:15:00,406 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 14:15:00,406 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (1/1) ... [2025-02-05 14:15:00,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:15:00,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 14:15:00,458 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) [2025-02-05 14:15:00,463 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 [2025-02-05 14:15:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 14:15:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 14:15:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 14:15:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2025-02-05 14:15:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2025-02-05 14:15:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 14:15:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 14:15:00,589 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 14:15:00,591 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 14:15:00,619 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88;havoc #t~nondet89; [2025-02-05 14:15:00,662 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-02-05 14:15:00,662 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 14:15:00,670 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 14:15:00,671 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 14:15:00,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:00 BoogieIcfgContainer [2025-02-05 14:15:00,671 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 14:15:00,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 14:15:00,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 14:15:00,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 14:15:00,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 02:14:59" (1/3) ... [2025-02-05 14:15:00,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce98b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:15:00, skipping insertion in model container [2025-02-05 14:15:00,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:00" (2/3) ... [2025-02-05 14:15:00,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce98b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:15:00, skipping insertion in model container [2025-02-05 14:15:00,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:00" (3/3) ... [2025-02-05 14:15:00,681 INFO L128 eAbstractionObserver]: Analyzing ICFG softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:15:00,714 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 14:15:00,716 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softplus_4_unsafe.c-amalgamation.i that has 2 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 14:15:00,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 14:15:00,768 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;@6e9bc528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 14:15:00,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 14:15:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-05 14:15:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-05 14:15:00,777 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 14:15:00,777 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 14:15:00,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 14:15:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 14:15:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1399499029, now seen corresponding path program 1 times [2025-02-05 14:15:00,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 14:15:00,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528488681] [2025-02-05 14:15:00,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 14:15:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 14:15:00,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:00,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:00,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:00,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 14:15:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-05 14:15:00,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 14:15:00,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528488681] [2025-02-05 14:15:00,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528488681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 14:15:00,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 14:15:00,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 14:15:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909730331] [2025-02-05 14:15:00,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 14:15:00,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 14:15:00,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 14:15:00,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 14:15:00,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 14:15:00,934 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 14:15:00,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 14:15:00,945 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2025-02-05 14:15:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 14:15:00,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-02-05 14:15:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 14:15:00,949 INFO L225 Difference]: With dead ends: 31 [2025-02-05 14:15:00,950 INFO L226 Difference]: Without dead ends: 13 [2025-02-05 14:15:00,953 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 [2025-02-05 14:15:00,956 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 14:15:00,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 14:15:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-02-05 14:15:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-05 14:15:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-05 14:15:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-02-05 14:15:00,980 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2025-02-05 14:15:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 14:15:00,980 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-05 14:15:00,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 14:15:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-02-05 14:15:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-05 14:15:00,982 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 14:15:00,982 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 14:15:00,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 14:15:00,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 14:15:00,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 14:15:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1692902036, now seen corresponding path program 1 times [2025-02-05 14:15:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 14:15:00,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480777948] [2025-02-05 14:15:00,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 14:15:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 14:15:00,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:01,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:01,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:01,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 14:15:01,004 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 14:15:01,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:01,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:01,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:01,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 14:15:01,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 14:15:01,030 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 14:15:01,031 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 14:15:01,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 14:15:01,034 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 14:15:01,045 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 14:15:01,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 02:15:01 BoogieIcfgContainer [2025-02-05 14:15:01,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 14:15:01,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 14:15:01,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 14:15:01,048 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 14:15:01,049 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:00" (3/4) ... [2025-02-05 14:15:01,050 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 14:15:01,051 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 14:15:01,052 INFO L158 Benchmark]: Toolchain (without parser) took 1362.65ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 91.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2025-02-05 14:15:01,053 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:01,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.23ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 55.2MB in the end (delta: 55.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-05 14:15:01,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.55ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:01,056 INFO L158 Benchmark]: Boogie Preprocessor took 54.76ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:01,056 INFO L158 Benchmark]: IcfgBuilder took 265.95ms. Allocated memory is still 142.6MB. Free memory was 51.5MB in the beginning and 41.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 14:15:01,056 INFO L158 Benchmark]: TraceAbstraction took 373.62ms. Allocated memory is still 142.6MB. Free memory was 41.5MB in the beginning and 91.0MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:01,056 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 142.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:01,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.23ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 55.2MB in the end (delta: 55.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.55ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.76ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 265.95ms. Allocated memory is still 142.6MB. Free memory was 51.5MB in the beginning and 41.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 373.62ms. Allocated memory is still 142.6MB. Free memory was 41.5MB in the beginning and 91.0MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 142.6MB. Free memory is still 91.0MB. 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 856, overapproximation of someBinaryArithmeticFLOAToperation at line 852. 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)=119] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=119] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=117] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=119, x2=117] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [x1=119, x2=117] [L857] COND TRUE !(__builtin_islessequal(derivative, 1.0f)) VAL [x1=119, x2=117] [L857] reach_error() VAL [x1=119, x2=117] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-05 14:15:01,072 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_4_unsafe.c-amalgamation.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 14:15:03,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 14:15:03,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 14:15:03,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 14:15:03,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 14:15:03,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 14:15:03,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 14:15:03,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 14:15:03,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 14:15:03,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 14:15:03,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 14:15:03,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 14:15:03,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 14:15:03,413 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:15:03,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 14:15:03,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 14:15:03,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 14:15:03,414 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 -> 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d [2025-02-05 14:15:03,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 14:15:03,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 14:15:03,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 14:15:03,693 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 14:15:03,693 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 14:15:03,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:15:04,926 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/917d5c59e/5d5553ef73b34bc4a67a2e74f35161f9/FLAG8a98c0bea [2025-02-05 14:15:05,265 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 14:15:05,268 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:15:05,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/917d5c59e/5d5553ef73b34bc4a67a2e74f35161f9/FLAG8a98c0bea [2025-02-05 14:15:05,497 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/917d5c59e/5d5553ef73b34bc4a67a2e74f35161f9 [2025-02-05 14:15:05,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 14:15:05,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 14:15:05,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 14:15:05,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 14:15:05,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 14:15:05,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:15:05" (1/1) ... [2025-02-05 14:15:05,515 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 05.02 02:15:05, skipping insertion in model container [2025-02-05 14:15:05,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 02:15:05" (1/1) ... [2025-02-05 14:15:05,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 14:15:05,978 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 14:15:05,980 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_4_unsafe.c-amalgamation.i[63165,63178] [2025-02-05 14:15:05,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:15:05,993 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 14:15:06,023 WARN L1731 CHandler]: Possible shadowing of function y1 [2025-02-05 14:15:06,023 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_4_unsafe.c-amalgamation.i[63165,63178] [2025-02-05 14:15:06,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 14:15:06,142 INFO L204 MainTranslator]: Completed translation [2025-02-05 14:15:06,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06 WrapperNode [2025-02-05 14:15:06,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 14:15:06,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 14:15:06,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 14:15:06,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 14:15:06,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,173 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2025-02-05 14:15:06,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 14:15:06,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 14:15:06,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 14:15:06,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 14:15:06,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,186 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]. [2025-02-05 14:15:06,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,195 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 14:15:06,202 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 14:15:06,202 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 14:15:06,203 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 14:15:06,203 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (1/1) ... [2025-02-05 14:15:06,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 14:15:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 14:15:06,230 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) [2025-02-05 14:15:06,239 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 [2025-02-05 14:15:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 14:15:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-05 14:15:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 14:15:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 14:15:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 14:15:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2025-02-05 14:15:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2025-02-05 14:15:06,328 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 14:15:06,329 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 14:15:06,348 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L847: havoc #t~nondet88;havoc #t~nondet89; [2025-02-05 14:15:07,479 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-02-05 14:15:07,479 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 14:15:07,489 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 14:15:07,489 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 14:15:07,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:07 BoogieIcfgContainer [2025-02-05 14:15:07,490 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 14:15:07,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 14:15:07,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 14:15:07,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 14:15:07,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 02:15:05" (1/3) ... [2025-02-05 14:15:07,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aca515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:15:07, skipping insertion in model container [2025-02-05 14:15:07,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 02:15:06" (2/3) ... [2025-02-05 14:15:07,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aca515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 02:15:07, skipping insertion in model container [2025-02-05 14:15:07,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:07" (3/3) ... [2025-02-05 14:15:07,507 INFO L128 eAbstractionObserver]: Analyzing ICFG softplus_4_unsafe.c-amalgamation.i [2025-02-05 14:15:07,529 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 14:15:07,530 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softplus_4_unsafe.c-amalgamation.i that has 2 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 14:15:07,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 14:15:07,645 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;@23f89c88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 14:15:07,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 14:15:07,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-05 14:15:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-05 14:15:07,653 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 14:15:07,653 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 14:15:07,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 14:15:07,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 14:15:07,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1399499029, now seen corresponding path program 1 times [2025-02-05 14:15:07,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 14:15:07,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742964353] [2025-02-05 14:15:07,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 14:15:07,671 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 [2025-02-05 14:15:07,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 14:15:07,674 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) [2025-02-05 14:15:07,676 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 [2025-02-05 14:15:07,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:07,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:07,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:07,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 14:15:07,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 14:15:07,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 14:15:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-05 14:15:07,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 14:15:07,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 14:15:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742964353] [2025-02-05 14:15:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742964353] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 14:15:07,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 14:15:07,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 14:15:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849646193] [2025-02-05 14:15:07,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 14:15:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 14:15:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 14:15:07,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 14:15:07,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 14:15:07,959 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 14:15:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 14:15:07,978 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2025-02-05 14:15:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 14:15:07,980 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-02-05 14:15:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 14:15:07,983 INFO L225 Difference]: With dead ends: 31 [2025-02-05 14:15:07,983 INFO L226 Difference]: Without dead ends: 13 [2025-02-05 14:15:07,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 14:15:07,988 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 14:15:07,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 14:15:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-02-05 14:15:08,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-05 14:15:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-05 14:15:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-02-05 14:15:08,025 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2025-02-05 14:15:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 14:15:08,025 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-05 14:15:08,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-05 14:15:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-02-05 14:15:08,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-05 14:15:08,027 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 14:15:08,027 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 14:15:08,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-02-05 14:15:08,232 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 [2025-02-05 14:15:08,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 14:15:08,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 14:15:08,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1692902036, now seen corresponding path program 1 times [2025-02-05 14:15:08,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 14:15:08,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708023436] [2025-02-05 14:15:08,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 14:15:08,234 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 [2025-02-05 14:15:08,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 14:15:08,237 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) [2025-02-05 14:15:08,238 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 [2025-02-05 14:15:08,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:08,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:08,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:08,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 14:15:08,469 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 14:15:08,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-05 14:15:08,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-05 14:15:08,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 14:15:08,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 14:15:08,696 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-05 14:15:08,696 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 14:15:08,697 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 14:15:08,710 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 [2025-02-05 14:15:08,899 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 [2025-02-05 14:15:08,903 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 14:15:08,922 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 14:15:08,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 02:15:08 BoogieIcfgContainer [2025-02-05 14:15:08,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 14:15:08,926 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 14:15:08,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 14:15:08,927 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 14:15:08,927 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 02:15:07" (3/4) ... [2025-02-05 14:15:08,929 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 14:15:08,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 14:15:08,930 INFO L158 Benchmark]: Toolchain (without parser) took 3428.90ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 82.8MB in the end (delta: 7.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2025-02-05 14:15:08,931 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:08,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.39ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 81.7MB in the end (delta: 7.6MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2025-02-05 14:15:08,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.86ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 14:15:08,931 INFO L158 Benchmark]: Boogie Preprocessor took 27.37ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:08,932 INFO L158 Benchmark]: IcfgBuilder took 1288.02ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 67.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 14:15:08,932 INFO L158 Benchmark]: TraceAbstraction took 1430.24ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 82.8MB in the end (delta: -16.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2025-02-05 14:15:08,932 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.8MB in the end (delta: 7.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 14:15:08,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.39ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 81.7MB in the end (delta: 7.6MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.86ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.37ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1288.02ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 67.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1430.24ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 82.8MB in the end (delta: -16.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.8MB in the end (delta: 7.0kB). 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=0.0] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [derivative=200000.0, x1=1.9999901056289673, x2=2.0] [L857] COND TRUE !(__builtin_islessequal(derivative, 1.0f)) 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 [2025-02-05 14:15:08,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample