./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:46:57,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:46:57,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:46:57,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:46:57,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:46:57,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:46:57,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:46:57,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:46:57,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:46:57,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:46:57,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:46:57,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:46:57,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:46:57,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:46:57,935 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:46:57,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:46:57,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:46:57,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:46:57,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:46:57,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:46:57,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:46:57,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:46:57,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:46:57,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:46:57,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:46:57,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:46:57,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:46:57,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:46:57,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:46:57,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:46:57,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:46:57,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 [2024-11-11 18:46:58,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:46:58,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:46:58,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:46:58,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:46:58,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:46:58,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2024-11-11 18:46:59,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:46:59,673 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:46:59,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2024-11-11 18:46:59,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b6356bd/4f260d1e0f51455783726305c0cbd512/FLAGf28863574 [2024-11-11 18:46:59,707 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b6356bd/4f260d1e0f51455783726305c0cbd512 [2024-11-11 18:46:59,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:46:59,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:46:59,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:46:59,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:46:59,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:46:59,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:46:59" (1/1) ... [2024-11-11 18:46:59,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0dba95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:46:59, skipping insertion in model container [2024-11-11 18:46:59,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:46:59" (1/1) ... [2024-11-11 18:46:59,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:47:00,162 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-11 18:47:00,164 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2024-11-11 18:47:00,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:47:00,174 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:47:00,204 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-11 18:47:00,209 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2024-11-11 18:47:00,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:47:00,308 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:47:00,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00 WrapperNode [2024-11-11 18:47:00,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:47:00,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:47:00,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:47:00,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:47:00,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,350 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-11-11 18:47:00,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:47:00,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:47:00,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:47:00,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:47:00,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,373 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]. [2024-11-11 18:47:00,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:47:00,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:47:00,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:47:00,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:47:00,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (1/1) ... [2024-11-11 18:47:00,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:47:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:47:00,411 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) [2024-11-11 18:47:00,413 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 [2024-11-11 18:47:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:47:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:47:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:47:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:47:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:47:00,554 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:47:00,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:47:00,620 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-11 18:47:00,621 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:47:00,634 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:47:00,634 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 18:47:00,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:00 BoogieIcfgContainer [2024-11-11 18:47:00,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:47:00,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:47:00,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:47:00,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:47:00,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:46:59" (1/3) ... [2024-11-11 18:47:00,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7107e54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:47:00, skipping insertion in model container [2024-11-11 18:47:00,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:00" (2/3) ... [2024-11-11 18:47:00,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7107e54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:47:00, skipping insertion in model container [2024-11-11 18:47:00,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:00" (3/3) ... [2024-11-11 18:47:00,646 INFO L112 eAbstractionObserver]: Analyzing ICFG log_4_safe.c-amalgamation.i [2024-11-11 18:47:00,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:47:00,663 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:47:00,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:47:00,721 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;@465e39c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:47:00,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:47:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:00,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-11 18:47:00,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:47:00,730 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:47:00,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:47:00,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:47:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028935, now seen corresponding path program 1 times [2024-11-11 18:47:00,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:47:00,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395149297] [2024-11-11 18:47:00,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:47:00,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:47:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:47:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:47:00,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:47:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395149297] [2024-11-11 18:47:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395149297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:47:00,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:47:00,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:47:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288053569] [2024-11-11 18:47:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:47:00,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:47:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:47:00,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:47:00,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:47:00,897 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:47:00,905 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-11 18:47:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:47:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-11 18:47:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:47:00,911 INFO L225 Difference]: With dead ends: 20 [2024-11-11 18:47:00,911 INFO L226 Difference]: Without dead ends: 8 [2024-11-11 18:47:00,913 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 [2024-11-11 18:47:00,916 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2024-11-11 18:47:00,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:47:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-11 18:47:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-11 18:47:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-11 18:47:00,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2024-11-11 18:47:00,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:47:00,936 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-11-11 18:47:00,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:00,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-11 18:47:00,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-11 18:47:00,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:47:00,937 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:47:00,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:47:00,937 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:47:00,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:47:00,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1805088517, now seen corresponding path program 1 times [2024-11-11 18:47:00,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:47:00,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992530040] [2024-11-11 18:47:00,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:47:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:47:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:47:00,950 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:47:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:47:00,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:47:00,975 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:47:00,977 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:47:00,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:47:00,984 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:47:00,996 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:47:01,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:47:01 BoogieIcfgContainer [2024-11-11 18:47:01,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:47:01,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:47:01,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:47:01,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:47:01,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:00" (3/4) ... [2024-11-11 18:47:01,006 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:47:01,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:47:01,007 INFO L158 Benchmark]: Toolchain (without parser) took 1296.83ms. Allocated memory was 184.5MB in the beginning and 266.3MB in the end (delta: 81.8MB). Free memory was 124.0MB in the beginning and 207.8MB in the end (delta: -83.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:01,008 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:01,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.53ms. Allocated memory is still 184.5MB. Free memory was 123.6MB in the beginning and 63.2MB in the end (delta: 60.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-11 18:47:01,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 184.5MB. Free memory was 63.2MB in the beginning and 60.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-11 18:47:01,009 INFO L158 Benchmark]: Boogie Preprocessor took 28.58ms. Allocated memory is still 184.5MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:01,010 INFO L158 Benchmark]: RCFGBuilder took 254.67ms. Allocated memory was 184.5MB in the beginning and 266.3MB in the end (delta: 81.8MB). Free memory was 58.6MB in the beginning and 231.9MB in the end (delta: -173.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-11 18:47:01,010 INFO L158 Benchmark]: TraceAbstraction took 365.75ms. Allocated memory is still 266.3MB. Free memory was 231.9MB in the beginning and 207.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-11 18:47:01,010 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 266.3MB. Free memory is still 207.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:01,012 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 184.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.53ms. Allocated memory is still 184.5MB. Free memory was 123.6MB in the beginning and 63.2MB in the end (delta: 60.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 184.5MB. Free memory was 63.2MB in the beginning and 60.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.58ms. Allocated memory is still 184.5MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 254.67ms. Allocated memory was 184.5MB in the beginning and 266.3MB in the end (delta: 81.8MB). Free memory was 58.6MB in the beginning and 231.9MB in the end (delta: -173.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 365.75ms. Allocated memory is still 266.3MB. Free memory was 231.9MB in the beginning and 207.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 266.3MB. Free memory is still 207.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 855]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 855, overapproximation of someBinaryArithmeticFLOAToperation at line 852. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d2 = 1.0f / x2; [L854] float diff = derivative - d2; [L855] COND TRUE !(__builtin_isgreaterequal(diff, -1e-3f)) [L855] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 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, 12 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=12occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-11 18:47:01,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:47:02,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:47:02,884 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:47:02,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:47:02,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:47:02,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:47:02,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:47:02,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:47:02,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:47:02,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:47:02,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:47:02,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:47:02,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:47:02,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:47:02,924 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:47:02,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:47:02,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:47:02,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:47:02,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:47:02,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:47:02,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:47:02,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:47:02,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:47:02,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:47:02,929 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:47:02,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:47:02,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:47:02,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:47:02,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:47:02,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:47:02,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:47:02,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:47:02,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:47:02,931 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:47:02,931 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:47:02,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:47:02,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:47:02,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:47:02,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:47:02,932 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 191893af89e745e65c72b504e763dfd908536e4c3bc0a58c22606428a6927de5 [2024-11-11 18:47:03,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:47:03,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:47:03,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:47:03,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:47:03,197 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:47:03,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2024-11-11 18:47:04,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:47:04,694 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:47:04,696 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i [2024-11-11 18:47:04,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c49a81ab/0309ab751def42feb79bb75833299eeb/FLAGb8aaaa6e0 [2024-11-11 18:47:04,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c49a81ab/0309ab751def42feb79bb75833299eeb [2024-11-11 18:47:04,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:47:04,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:47:04,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:47:04,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:47:04,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:47:04,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:47:04" (1/1) ... [2024-11-11 18:47:04,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc44103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:04, skipping insertion in model container [2024-11-11 18:47:04,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:47:04" (1/1) ... [2024-11-11 18:47:04,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:47:05,245 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-11 18:47:05,246 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2024-11-11 18:47:05,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:47:05,263 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:47:05,294 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-11 18:47:05,296 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/log_4_safe.c-amalgamation.i[63189,63202] [2024-11-11 18:47:05,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:47:05,390 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:47:05,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05 WrapperNode [2024-11-11 18:47:05,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:47:05,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:47:05,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:47:05,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:47:05,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,448 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-11-11 18:47:05,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:47:05,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:47:05,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:47:05,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:47:05,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,478 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]. [2024-11-11 18:47:05,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:47:05,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:47:05,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:47:05,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:47:05,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (1/1) ... [2024-11-11 18:47:05,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:47:05,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:47:05,536 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) [2024-11-11 18:47:05,538 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 [2024-11-11 18:47:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:47:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:47:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:47:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:47:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:47:05,668 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:47:05,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:47:09,089 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-11 18:47:09,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:47:09,102 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:47:09,102 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 18:47:09,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:09 BoogieIcfgContainer [2024-11-11 18:47:09,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:47:09,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:47:09,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:47:09,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:47:09,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:47:04" (1/3) ... [2024-11-11 18:47:09,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e84e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:47:09, skipping insertion in model container [2024-11-11 18:47:09,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:47:05" (2/3) ... [2024-11-11 18:47:09,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e84e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:47:09, skipping insertion in model container [2024-11-11 18:47:09,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:09" (3/3) ... [2024-11-11 18:47:09,113 INFO L112 eAbstractionObserver]: Analyzing ICFG log_4_safe.c-amalgamation.i [2024-11-11 18:47:09,124 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:47:09,124 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:47:09,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:47:09,167 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;@5eb5da5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:47:09,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:47:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-11 18:47:09,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:47:09,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-11 18:47:09,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:47:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:47:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-11 18:47:09,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:47:09,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886645339] [2024-11-11 18:47:09,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:47:09,190 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 [2024-11-11 18:47:09,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:47:09,192 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) [2024-11-11 18:47:09,193 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 [2024-11-11 18:47:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:47:09,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:47:09,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:47:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:47:09,525 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:47:09,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:47:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886645339] [2024-11-11 18:47:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886645339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:47:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:47:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:47:09,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819404893] [2024-11-11 18:47:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:47:09,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:47:09,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:47:09,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:47:09,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:47:09,564 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:47:09,572 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-11 18:47:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:47:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-11 18:47:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:47:09,578 INFO L225 Difference]: With dead ends: 19 [2024-11-11 18:47:09,578 INFO L226 Difference]: Without dead ends: 7 [2024-11-11 18:47:09,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:47:09,583 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:47:09,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:47:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-11 18:47:09,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-11 18:47:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-11 18:47:09,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-11 18:47:09,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:47:09,606 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-11 18:47:09,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:47:09,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-11 18:47:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-11 18:47:09,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:47:09,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-11 18:47:09,620 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 [2024-11-11 18:47:09,807 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 [2024-11-11 18:47:09,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:47:09,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:47:09,809 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-11 18:47:09,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:47:09,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416438798] [2024-11-11 18:47:09,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:47:09,810 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 [2024-11-11 18:47:09,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:47:09,811 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) [2024-11-11 18:47:09,812 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 [2024-11-11 18:47:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:47:10,170 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:47:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:47:10,503 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-11 18:47:10,503 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:47:10,504 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:47:10,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-11 18:47:10,706 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 [2024-11-11 18:47:10,709 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:47:10,721 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:47:10,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:47:10 BoogieIcfgContainer [2024-11-11 18:47:10,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:47:10,724 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:47:10,724 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:47:10,724 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:47:10,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:47:09" (3/4) ... [2024-11-11 18:47:10,726 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:47:10,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:47:10,727 INFO L158 Benchmark]: Toolchain (without parser) took 5990.37ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.3MB in the beginning and 43.8MB in the end (delta: -7.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-11 18:47:10,728 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:10,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.26ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.1MB in the beginning and 31.8MB in the end (delta: 4.3MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-11-11 18:47:10,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.71ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 55.6MB in the end (delta: -23.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-11 18:47:10,729 INFO L158 Benchmark]: Boogie Preprocessor took 49.04ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:47:10,729 INFO L158 Benchmark]: RCFGBuilder took 3603.92ms. Allocated memory is still 81.8MB. Free memory was 53.5MB in the beginning and 42.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-11 18:47:10,729 INFO L158 Benchmark]: TraceAbstraction took 1619.29ms. Allocated memory is still 81.8MB. Free memory was 41.9MB in the beginning and 44.3MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:10,730 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 43.8MB in the end (delta: 486.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:47:10,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.26ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.1MB in the beginning and 31.8MB in the end (delta: 4.3MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.71ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 55.6MB in the end (delta: -23.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.04ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3603.92ms. Allocated memory is still 81.8MB. Free memory was 53.5MB in the beginning and 42.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1619.29ms. Allocated memory is still 81.8MB. Free memory was 41.9MB in the beginning and 44.3MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 43.8MB in the end (delta: 486.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 855]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of logf at line 850, overapproximation of __builtin_isinf_sign at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; VAL [x1=8589934592, x2=8589934592] [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d2 = 1.0f / x2; [L854] float diff = derivative - d2; VAL [diff=-1.5380859375] [L855] COND TRUE !(__builtin_isgreaterequal(diff, -1e-3f)) [L855] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, 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, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-11 18:47:10,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample