/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/neural-networks/softplus_3_safe.c-amalgamation.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 10:39:38,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 10:39:38,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 10:39:38,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 10:39:38,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 10:39:38,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 10:39:38,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 10:39:38,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 10:39:38,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 10:39:38,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 10:39:38,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 10:39:38,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 10:39:38,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 10:39:38,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 10:39:38,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 10:39:38,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 10:39:38,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 10:39:38,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 10:39:38,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 10:39:38,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 10:39:38,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 10:39:38,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 10:39:38,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 10:39:38,632 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 10:39:38,632 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 10:39:38,632 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 10:39:38,633 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 10:39:38,633 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 10:39:38,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 10:39:38,633 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 10:39:38,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 10:39:38,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 10:39:38,634 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 10:39:38,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 10:39:38,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 10:39:38,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 10:39:38,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 10:39:38,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 10:39:38,635 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 10:39:38,635 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 10:39:38,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 10:39:38,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 10:39:38,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 10:39:38,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 10:39:38,636 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 10:39:38,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 10:39:38,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 10:39:38,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 10:39:38,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 10:39:38,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 10:39:38,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/neural-networks/softplus_3_safe.c-amalgamation.i [2024-11-06 10:39:40,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 10:39:40,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 10:39:40,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softplus_3_safe.c-amalgamation.i [2024-11-06 10:39:40,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8c659976/c2337db3694047518f380afb0316be29/FLAGbd716448e [2024-11-06 10:39:40,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8c659976/c2337db3694047518f380afb0316be29 [2024-11-06 10:39:40,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 10:39:40,866 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 10:39:40,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 10:39:40,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 10:39:40,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 10:39:40,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:40" (1/1) ... [2024-11-06 10:39:40,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7196005b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:40, skipping insertion in model container [2024-11-06 10:39:40,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:40" (1/1) ... [2024-11-06 10:39:40,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 10:39:41,410 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-06 10:39:41,411 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softplus_3_safe.c-amalgamation.i[63105,63118] [2024-11-06 10:39:41,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 10:39:41,425 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 10:39:41,475 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-06 10:39:41,476 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/softplus_3_safe.c-amalgamation.i[63105,63118] [2024-11-06 10:39:41,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 10:39:41,622 INFO L204 MainTranslator]: Completed translation [2024-11-06 10:39:41,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41 WrapperNode [2024-11-06 10:39:41,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 10:39:41,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 10:39:41,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 10:39:41,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 10:39:41,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,683 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-11-06 10:39:41,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 10:39:41,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 10:39:41,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 10:39:41,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 10:39:41,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,712 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-06 10:39:41,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 10:39:41,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 10:39:41,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 10:39:41,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 10:39:41,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (1/1) ... [2024-11-06 10:39:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 10:39:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 10:39:41,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 10:39:41,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 10:39:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 10:39:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 10:39:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 10:39:41,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 10:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 10:39:41,801 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2024-11-06 10:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2024-11-06 10:39:41,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 10:39:41,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 10:39:42,157 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-06 10:39:42,157 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 10:39:42,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 10:39:42,166 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 10:39:42,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:42 BoogieIcfgContainer [2024-11-06 10:39:42,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 10:39:42,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 10:39:42,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 10:39:42,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 10:39:42,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:39:40" (1/3) ... [2024-11-06 10:39:42,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484d2270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:42, skipping insertion in model container [2024-11-06 10:39:42,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:41" (2/3) ... [2024-11-06 10:39:42,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484d2270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:42, skipping insertion in model container [2024-11-06 10:39:42,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:42" (3/3) ... [2024-11-06 10:39:42,176 INFO L112 eAbstractionObserver]: Analyzing ICFG softplus_3_safe.c-amalgamation.i [2024-11-06 10:39:42,195 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 10:39:42,196 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 10:39:42,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 10:39:42,240 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;@5bd50b2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 10:39:42,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 10:39:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-06 10:39:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-06 10:39:42,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 10:39:42,248 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 10:39:42,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 10:39:42,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 10:39:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2056638151, now seen corresponding path program 1 times [2024-11-06 10:39:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 10:39:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886462950] [2024-11-06 10:39:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 10:39:42,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 10:39:42,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 10:39:42,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 10:39:42,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-06 10:39:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 10:39:42,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 10:39:42,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 10:39:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 10:39:42,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 10:39:42,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 10:39:42,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886462950] [2024-11-06 10:39:42,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886462950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 10:39:42,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 10:39:42,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 10:39:42,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942475990] [2024-11-06 10:39:42,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 10:39:42,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 10:39:42,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 10:39:42,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 10:39:42,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 10:39:42,393 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-06 10:39:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 10:39:42,406 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-06 10:39:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 10:39:42,408 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-06 10:39:42,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 10:39:42,413 INFO L225 Difference]: With dead ends: 31 [2024-11-06 10:39:42,413 INFO L226 Difference]: Without dead ends: 13 [2024-11-06 10:39:42,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 10:39:42,418 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 10:39:42,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 10:39:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-06 10:39:42,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-06 10:39:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-06 10:39:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-06 10:39:42,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2024-11-06 10:39:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 10:39:42,449 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-06 10:39:42,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-06 10:39:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-06 10:39:42,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-06 10:39:42,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 10:39:42,451 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 10:39:42,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-06 10:39:42,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 10:39:42,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 10:39:42,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 10:39:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1469832137, now seen corresponding path program 1 times [2024-11-06 10:39:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 10:39:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767821617] [2024-11-06 10:39:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 10:39:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 10:39:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 10:39:42,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 10:39:42,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-06 10:39:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 10:39:42,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 10:39:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 10:39:42,796 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-06 10:39:42,797 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 10:39:42,798 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 10:39:42,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-06 10:39:43,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 10:39:43,003 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-06 10:39:43,022 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 10:39:43,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:39:43 BoogieIcfgContainer [2024-11-06 10:39:43,025 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 10:39:43,025 INFO L158 Benchmark]: Toolchain (without parser) took 2159.45ms. Allocated memory is still 284.2MB. Free memory was 230.1MB in the beginning and 179.4MB in the end (delta: 50.7MB). Peak memory consumption was 51.7MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,026 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory was 151.1MB in the beginning and 151.0MB in the end (delta: 190.3kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-06 10:39:43,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.68ms. Allocated memory is still 284.2MB. Free memory was 230.1MB in the beginning and 225.0MB in the end (delta: 5.1MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.33ms. Allocated memory is still 284.2MB. Free memory was 225.0MB in the beginning and 222.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,027 INFO L158 Benchmark]: Boogie Preprocessor took 45.59ms. Allocated memory is still 284.2MB. Free memory was 222.4MB in the beginning and 220.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,029 INFO L158 Benchmark]: RCFGBuilder took 435.87ms. Allocated memory is still 284.2MB. Free memory was 220.3MB in the beginning and 208.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,030 INFO L158 Benchmark]: TraceAbstraction took 856.33ms. Allocated memory is still 284.2MB. Free memory was 207.7MB in the beginning and 179.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2024-11-06 10:39:43,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory was 151.1MB in the beginning and 151.0MB in the end (delta: 190.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 755.68ms. Allocated memory is still 284.2MB. Free memory was 230.1MB in the beginning and 225.0MB in the end (delta: 5.1MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.33ms. Allocated memory is still 284.2MB. Free memory was 225.0MB in the beginning and 222.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.59ms. Allocated memory is still 284.2MB. Free memory was 222.4MB in the beginning and 220.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 435.87ms. Allocated memory is still 284.2MB. Free memory was 220.3MB in the beginning and 208.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 856.33ms. Allocated memory is still 284.2MB. Free memory was 207.7MB in the beginning and 179.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * 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: 856]: 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=0.0, x2=0.000009999999747378752] [L853] COND FALSE !(!(!__builtin_isnan (x1))) VAL [x1=0.0, x2=0.000009999999747378752] [L854] CALL, EXPR softplus(x1) VAL [\old(x)=0.0] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=0.0, x2=0.000009999999747378752] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=0.000009999999747378752] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=0.0, x2=0.000009999999747378752, y1=0.0] [L855] float y2 = softplus(x2); [L856] COND TRUE !(__builtin_islessequal(y1, y2)) VAL [x1=0.0, x2=0.000009999999747378752] [L856] reach_error() VAL [x1=0.0, x2=0.000009999999747378752] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-06 10:39:43,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...