./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/combinations/gcd_1+newton_1_4.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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 22:24:42,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 22:24:42,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 22:24:42,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 22:24:42,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 22:24:42,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 22:24:42,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 22:24:42,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 22:24:42,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 22:24:42,088 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 22:24:42,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 22:24:42,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 22:24:42,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 22:24:42,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 22:24:42,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 22:24:42,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 22:24:42,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 22:24:42,091 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 22:24:42,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 22:24:42,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 22:24:42,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 22:24:42,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 22:24:42,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 22:24:42,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 22:24:42,094 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 22:24:42,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 22:24:42,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 22:24:42,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 22:24:42,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 22:24:42,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 22:24:42,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 22:24:42,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:24:42,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 22:24:42,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 22:24:42,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 22:24:42,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 22:24:42,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 22:24:42,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 22:24:42,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 22:24:42,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 22:24:42,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 22:24:42,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 22:24:42,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 22:24:42,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 22:24:42,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 22:24:42,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 22:24:42,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 22:24:42,357 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 22:24:42,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i [2023-11-22 22:24:43,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 22:24:43,697 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 22:24:43,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i [2023-11-22 22:24:43,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f669c03/f29800ae0b3b4705a383a0ae59314003/FLAGc86d575ad [2023-11-22 22:24:43,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f669c03/f29800ae0b3b4705a383a0ae59314003 [2023-11-22 22:24:43,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 22:24:43,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 22:24:43,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 22:24:43,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 22:24:43,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 22:24:43,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:24:43" (1/1) ... [2023-11-22 22:24:43,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ea75fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:43, skipping insertion in model container [2023-11-22 22:24:43,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:24:43" (1/1) ... [2023-11-22 22:24:43,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 22:24:43,922 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-22 22:24:43,963 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-22 22:24:43,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:24:43,974 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 22:24:43,983 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-22 22:24:43,991 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-22 22:24:43,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:24:44,007 INFO L206 MainTranslator]: Completed translation [2023-11-22 22:24:44,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44 WrapperNode [2023-11-22 22:24:44,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 22:24:44,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 22:24:44,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 22:24:44,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 22:24:44,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,039 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 89 [2023-11-22 22:24:44,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 22:24:44,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 22:24:44,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 22:24:44,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 22:24:44,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,055 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,064 INFO L189 HeapSplitter]: Split 10 memory accesses to 2 slices as follows [2, 8] [2023-11-22 22:24:44,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 22:24:44,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 22:24:44,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 22:24:44,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 22:24:44,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (1/1) ... [2023-11-22 22:24:44,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:24:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 22:24:44,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 22:24:44,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 22:24:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 22:24:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 22:24:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 22:24:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 22:24:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 22:24:44,235 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 22:24:44,239 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 22:24:44,391 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 22:24:44,424 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 22:24:44,424 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 22:24:44,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:44 BoogieIcfgContainer [2023-11-22 22:24:44,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 22:24:44,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 22:24:44,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 22:24:44,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 22:24:44,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:24:43" (1/3) ... [2023-11-22 22:24:44,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3720e762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:24:44, skipping insertion in model container [2023-11-22 22:24:44,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:44" (2/3) ... [2023-11-22 22:24:44,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3720e762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:24:44, skipping insertion in model container [2023-11-22 22:24:44,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:44" (3/3) ... [2023-11-22 22:24:44,437 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2023-11-22 22:24:44,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 22:24:44,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-22 22:24:44,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 22:24:44,497 INFO L357 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, mHoare=true, 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;@569ee145, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 22:24:44,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-22 22:24:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 19 states have internal predecessors, (28), 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) [2023-11-22 22:24:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-22 22:24:44,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 22:24:44,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-22 22:24:44,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 22:24:44,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 22:24:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1037804606, now seen corresponding path program 1 times [2023-11-22 22:24:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 22:24:44,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987101694] [2023-11-22 22:24:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 22:24:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 22:24:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 22:24:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 22:24:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 22:24:44,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987101694] [2023-11-22 22:24:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987101694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 22:24:44,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 22:24:44,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 22:24:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586269208] [2023-11-22 22:24:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 22:24:44,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 22:24:44,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 22:24:44,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 22:24:44,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 22:24:44,667 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 19 states have internal predecessors, (28), 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) [2023-11-22 22:24:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 22:24:44,711 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2023-11-22 22:24:44,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 22:24:44,714 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 [2023-11-22 22:24:44,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 22:24:44,720 INFO L225 Difference]: With dead ends: 33 [2023-11-22 22:24:44,720 INFO L226 Difference]: Without dead ends: 15 [2023-11-22 22:24:44,723 INFO L412 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 [2023-11-22 22:24:44,727 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 22:24:44,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 22:24:44,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-22 22:24:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-22 22:24:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 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) [2023-11-22 22:24:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-22 22:24:44,754 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2023-11-22 22:24:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 22:24:44,755 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-22 22:24:44,760 INFO L496 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) [2023-11-22 22:24:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-22 22:24:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-22 22:24:44,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 22:24:44,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-22 22:24:44,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 22:24:44,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 22:24:44,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 22:24:44,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1037745024, now seen corresponding path program 1 times [2023-11-22 22:24:44,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 22:24:44,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836849418] [2023-11-22 22:24:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 22:24:44,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 22:24:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 22:24:44,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-22 22:24:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 22:24:44,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-22 22:24:44,840 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-22 22:24:44,855 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-22 22:24:44,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-22 22:24:44,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 22:24:44,860 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-22 22:24:44,863 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 22:24:44,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:24:44 BoogieIcfgContainer [2023-11-22 22:24:44,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 22:24:44,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 22:24:44,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 22:24:44,887 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 22:24:44,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:44" (3/4) ... [2023-11-22 22:24:44,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-22 22:24:44,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 22:24:44,892 INFO L158 Benchmark]: Toolchain (without parser) took 1173.84ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 127.9MB in the beginning and 159.0MB in the end (delta: -31.1MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,892 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 22:24:44,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.04ms. Allocated memory is still 159.4MB. Free memory was 127.9MB in the beginning and 118.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.13ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 116.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,897 INFO L158 Benchmark]: Boogie Preprocessor took 35.87ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 114.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,897 INFO L158 Benchmark]: RCFGBuilder took 348.63ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 100.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,898 INFO L158 Benchmark]: TraceAbstraction took 453.90ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.9MB in the beginning and 159.3MB in the end (delta: -59.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-11-22 22:24:44,898 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 192.9MB. Free memory was 159.3MB in the beginning and 159.0MB in the end (delta: 309.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 22:24:44,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.04ms. Allocated memory is still 159.4MB. Free memory was 127.9MB in the beginning and 118.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.13ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 116.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.87ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 114.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.63ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 100.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 453.90ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.9MB in the beginning and 159.3MB in the end (delta: -59.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 192.9MB. Free memory was 159.3MB in the beginning and 159.0MB in the end (delta: 309.3kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 6 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=20occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-22 22:24:44,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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/current/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 ../../../trunk/examples/svcomp/combinations/gcd_1+newton_1_4.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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 22:24:47,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 22:24:47,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-22 22:24:47,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 22:24:47,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 22:24:47,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 22:24:47,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 22:24:47,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 22:24:47,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 22:24:47,218 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 22:24:47,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 22:24:47,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 22:24:47,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 22:24:47,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 22:24:47,220 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 22:24:47,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 22:24:47,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 22:24:47,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 22:24:47,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 22:24:47,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 22:24:47,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 22:24:47,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 22:24:47,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 22:24:47,224 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 22:24:47,224 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-22 22:24:47,224 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-22 22:24:47,225 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 22:24:47,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 22:24:47,225 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 22:24:47,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 22:24:47,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 22:24:47,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 22:24:47,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 22:24:47,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:24:47,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 22:24:47,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 22:24:47,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 22:24:47,229 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-22 22:24:47,229 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-22 22:24:47,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 22:24:47,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 22:24:47,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 22:24:47,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 22:24:47,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 22:24:47,239 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-22 22:24:47,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 22:24:47,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 22:24:47,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 22:24:47,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 22:24:47,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 22:24:47,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 22:24:47,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i [2023-11-22 22:24:48,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 22:24:48,999 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 22:24:48,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i [2023-11-22 22:24:49,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21f6f80c7/6eae90a23f2a42ff94e0165315b56e3b/FLAG40ac47a7a [2023-11-22 22:24:49,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21f6f80c7/6eae90a23f2a42ff94e0165315b56e3b [2023-11-22 22:24:49,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 22:24:49,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 22:24:49,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 22:24:49,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 22:24:49,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 22:24:49,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c91a93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49, skipping insertion in model container [2023-11-22 22:24:49,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 22:24:49,211 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-22 22:24:49,253 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-22 22:24:49,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:24:49,271 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 22:24:49,291 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-22 22:24:49,316 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-22 22:24:49,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 22:24:49,335 INFO L206 MainTranslator]: Completed translation [2023-11-22 22:24:49,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49 WrapperNode [2023-11-22 22:24:49,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 22:24:49,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 22:24:49,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 22:24:49,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 22:24:49,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,378 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2023-11-22 22:24:49,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 22:24:49,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 22:24:49,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 22:24:49,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 22:24:49,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,398 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,416 INFO L189 HeapSplitter]: Split 10 memory accesses to 2 slices as follows [2, 8] [2023-11-22 22:24:49,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 22:24:49,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 22:24:49,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 22:24:49,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 22:24:49,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (1/1) ... [2023-11-22 22:24:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 22:24:49,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 22:24:49,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 22:24:49,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 22:24:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 22:24:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-22 22:24:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-22 22:24:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 22:24:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 22:24:49,634 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 22:24:49,636 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 22:24:54,459 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 22:24:54,509 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 22:24:54,509 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 22:24:54,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:54 BoogieIcfgContainer [2023-11-22 22:24:54,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 22:24:54,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 22:24:54,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 22:24:54,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 22:24:54,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:24:49" (1/3) ... [2023-11-22 22:24:54,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a48b370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:24:54, skipping insertion in model container [2023-11-22 22:24:54,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:24:49" (2/3) ... [2023-11-22 22:24:54,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a48b370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:24:54, skipping insertion in model container [2023-11-22 22:24:54,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:54" (3/3) ... [2023-11-22 22:24:54,517 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2023-11-22 22:24:54,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 22:24:54,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-22 22:24:54,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 22:24:54,571 INFO L357 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, mHoare=true, 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;@638bca76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 22:24:54,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-22 22:24:54,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 19 states have internal predecessors, (28), 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) [2023-11-22 22:24:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-22 22:24:54,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 22:24:54,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-22 22:24:54,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 22:24:54,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 22:24:54,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1037804606, now seen corresponding path program 1 times [2023-11-22 22:24:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 22:24:54,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736712870] [2023-11-22 22:24:54,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 22:24:54,605 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 [2023-11-22 22:24:54,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 22:24:54,612 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) [2023-11-22 22:24:54,657 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 (2)] Waiting until timeout for monitored process [2023-11-22 22:24:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 22:24:55,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-22 22:24:55,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 22:24:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 22:24:55,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 22:24:55,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 22:24:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736712870] [2023-11-22 22:24:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736712870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 22:24:55,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 22:24:55,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 22:24:55,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067518544] [2023-11-22 22:24:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 22:24:55,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 22:24:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 22:24:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 22:24:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 22:24:55,351 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 19 states have internal predecessors, (28), 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) [2023-11-22 22:24:57,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-22 22:24:58,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 22:24:58,112 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2023-11-22 22:24:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 22:24:58,115 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 [2023-11-22 22:24:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 22:24:58,120 INFO L225 Difference]: With dead ends: 33 [2023-11-22 22:24:58,120 INFO L226 Difference]: Without dead ends: 15 [2023-11-22 22:24:58,121 INFO L412 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 [2023-11-22 22:24:58,124 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-22 22:24:58,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2023-11-22 22:24:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-22 22:24:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-22 22:24:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 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) [2023-11-22 22:24:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-22 22:24:58,147 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2023-11-22 22:24:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 22:24:58,148 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-22 22:24:58,148 INFO L496 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) [2023-11-22 22:24:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-22 22:24:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-22 22:24:58,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 22:24:58,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-22 22:24:58,162 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 (2)] Ended with exit code 0 [2023-11-22 22:24:58,349 WARN L477 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 [2023-11-22 22:24:58,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 22:24:58,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 22:24:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1037745024, now seen corresponding path program 1 times [2023-11-22 22:24:58,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 22:24:58,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690990244] [2023-11-22 22:24:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 22:24:58,352 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 [2023-11-22 22:24:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 22:24:58,353 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) [2023-11-22 22:24:58,359 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 [2023-11-22 22:25:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 22:25:59,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-22 22:26:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 22:26:38,925 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-22 22:26:38,926 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-22 22:26:38,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-22 22:26:38,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-22 22:26:38,960 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 [2023-11-22 22:26:39,130 WARN L477 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 [2023-11-22 22:26:39,134 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-22 22:26:39,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 22:26:39,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:26:39 BoogieIcfgContainer [2023-11-22 22:26:39,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 22:26:39,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 22:26:39,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 22:26:39,156 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 22:26:39,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:24:54" (3/4) ... [2023-11-22 22:26:39,157 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-22 22:26:39,186 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-22 22:26:39,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 22:26:39,187 INFO L158 Benchmark]: Toolchain (without parser) took 110161.68ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 41.9MB in the beginning and 73.7MB in the end (delta: -31.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,187 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 25.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 22:26:39,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.49ms. Allocated memory is still 79.7MB. Free memory was 41.7MB in the beginning and 52.8MB in the end (delta: -11.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.33ms. Allocated memory is still 79.7MB. Free memory was 52.8MB in the beginning and 50.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,188 INFO L158 Benchmark]: Boogie Preprocessor took 75.10ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,189 INFO L158 Benchmark]: RCFGBuilder took 5055.41ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 48.4MB in the beginning and 101.0MB in the end (delta: -52.6MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,189 INFO L158 Benchmark]: TraceAbstraction took 104643.46ms. Allocated memory is still 123.7MB. Free memory was 100.4MB in the beginning and 75.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,190 INFO L158 Benchmark]: Witness Printer took 30.68ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 22:26:39,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 25.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.49ms. Allocated memory is still 79.7MB. Free memory was 41.7MB in the beginning and 52.8MB in the end (delta: -11.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.33ms. Allocated memory is still 79.7MB. Free memory was 52.8MB in the beginning and 50.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.10ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5055.41ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 48.4MB in the beginning and 101.0MB in the end (delta: -52.6MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 104643.46ms. Allocated memory is still 123.7MB. Free memory was 100.4MB in the beginning and 75.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 30.68ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7144843339920044, x=0.15249937772750854] [L102] reach_error() VAL [IN=-0.7144843339920044, x=0.15249937772750854] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 104.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 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=20occurred 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, 62.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 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 proved your program to be incorrect! [2023-11-22 22:26:39,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE