/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:46:13,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:46:13,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:46:13,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 00:46:13,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 00:46:13,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 00:46:13,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 00:46:13,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 00:46:13,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 00:46:13,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 00:46:13,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 00:46:13,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 00:46:13,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 00:46:13,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 00:46:13,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 00:46:13,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 00:46:13,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 00:46:13,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 00:46:13,207 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:46:13,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:46:13,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:46:13,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:46:13,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:46:13,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:46:13,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:46:13,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:46:13,210 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:46:13,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:46:13,211 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:46:13,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:46:13,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:46:13,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:46:13,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:46:13,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:46:13,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:46:13,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:46:13,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:46:13,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:46:13,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:46:13,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:46:13,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:46:13,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:46:13,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:46:13,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:46:13,214 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:46:13,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:46:13,215 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:46:13,215 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:46:13,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:46:13,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:46:13,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:46:13,475 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:46:13,475 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:46:13,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2023-04-02 00:46:14,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:46:14,835 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:46:14,836 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2023-04-02 00:46:14,842 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e1d6d56/d08b392c4bbc4417bbb5bfbd0ad2fa60/FLAGa42451e71 [2023-04-02 00:46:14,856 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e1d6d56/d08b392c4bbc4417bbb5bfbd0ad2fa60 [2023-04-02 00:46:14,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:46:14,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:46:14,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:46:14,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:46:14,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:46:14,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:46:14" (1/1) ... [2023-04-02 00:46:14,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191dbdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:14, skipping insertion in model container [2023-04-02 00:46:14,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:46:14" (1/1) ... [2023-04-02 00:46:14,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:46:14,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:46:15,031 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2023-04-02 00:46:15,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:46:15,049 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:46:15,069 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2023-04-02 00:46:15,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:46:15,085 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:46:15,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15 WrapperNode [2023-04-02 00:46:15,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:46:15,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:46:15,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:46:15,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:46:15,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:46:15,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:46:15,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:46:15,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:46:15,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (1/1) ... [2023-04-02 00:46:15,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:46:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:46:15,160 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) [2023-04-02 00:46:15,174 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 [2023-04-02 00:46:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:46:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:46:15,198 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:46:15,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2023-04-02 00:46:15,198 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2023-04-02 00:46:15,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:46:15,198 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:46:15,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 00:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 00:46:15,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:46:15,265 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:46:15,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:46:15,523 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:46:15,528 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:46:15,529 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-02 00:46:15,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:46:15 BoogieIcfgContainer [2023-04-02 00:46:15,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:46:15,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:46:15,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:46:15,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:46:15,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:46:14" (1/3) ... [2023-04-02 00:46:15,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc3196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:46:15, skipping insertion in model container [2023-04-02 00:46:15,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:46:15" (2/3) ... [2023-04-02 00:46:15,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc3196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:46:15, skipping insertion in model container [2023-04-02 00:46:15,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:46:15" (3/3) ... [2023-04-02 00:46:15,547 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2023-04-02 00:46:15,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:46:15,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:46:15,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:46:15,605 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=LoopsAndPotentialCycles, 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;@5cd808b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:46:15,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:46:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.6) internal successors, (64), 41 states have internal predecessors, (64), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 00:46:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-02 00:46:15,616 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:46:15,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:46:15,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:46:15,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:46:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1308628745, now seen corresponding path program 1 times [2023-04-02 00:46:15,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:46:15,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086799297] [2023-04-02 00:46:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:46:15,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:46:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:15,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:46:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 00:46:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 00:46:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:46:15,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:46:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086799297] [2023-04-02 00:46:15,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086799297] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:46:15,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:46:15,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 00:46:15,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261859595] [2023-04-02 00:46:15,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:46:15,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 00:46:15,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:46:15,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 00:46:15,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 00:46:15,889 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.6) internal successors, (64), 41 states have internal predecessors, (64), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:46:16,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:46:16,136 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2023-04-02 00:46:16,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 00:46:16,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-04-02 00:46:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:46:16,147 INFO L225 Difference]: With dead ends: 92 [2023-04-02 00:46:16,147 INFO L226 Difference]: Without dead ends: 46 [2023-04-02 00:46:16,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:46:16,154 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 59 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 00:46:16,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 7 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 00:46:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-04-02 00:46:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-04-02 00:46:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 00:46:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2023-04-02 00:46:16,185 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 25 [2023-04-02 00:46:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:46:16,186 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2023-04-02 00:46:16,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:46:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2023-04-02 00:46:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-04-02 00:46:16,187 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:46:16,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:46:16,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:46:16,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:46:16,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:46:16,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1116987476, now seen corresponding path program 1 times [2023-04-02 00:46:16,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:46:16,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402902584] [2023-04-02 00:46:16,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:46:16,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:46:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:46:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 00:46:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 00:46:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:46:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:46:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:46:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402902584] [2023-04-02 00:46:16,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402902584] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:46:16,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:46:16,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 00:46:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653020760] [2023-04-02 00:46:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:46:16,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 00:46:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:46:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 00:46:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 00:46:16,512 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:46:16,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:46:16,742 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2023-04-02 00:46:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 00:46:16,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-04-02 00:46:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:46:16,751 INFO L225 Difference]: With dead ends: 82 [2023-04-02 00:46:16,753 INFO L226 Difference]: Without dead ends: 54 [2023-04-02 00:46:16,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 00:46:16,755 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 00:46:16,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 7 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 00:46:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-04-02 00:46:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2023-04-02 00:46:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 00:46:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2023-04-02 00:46:16,765 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 26 [2023-04-02 00:46:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:46:16,765 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-04-02 00:46:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:46:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-04-02 00:46:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-02 00:46:16,766 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:46:16,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:46:16,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 00:46:16,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:46:16,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:46:16,767 INFO L85 PathProgramCache]: Analyzing trace with hash -51761689, now seen corresponding path program 1 times [2023-04-02 00:46:16,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:46:16,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542892116] [2023-04-02 00:46:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:46:16,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:46:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:46:16,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 00:46:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:46:16,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 00:46:16,855 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 00:46:16,856 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:46:16,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 00:46:16,860 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-02 00:46:16,863 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:46:16,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:46:16 BoogieIcfgContainer [2023-04-02 00:46:16,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:46:16,888 INFO L158 Benchmark]: Toolchain (without parser) took 2028.72ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 146.0MB in the beginning and 182.2MB in the end (delta: -36.2MB). Peak memory consumption was 35.8MB. Max. memory is 8.0GB. [2023-04-02 00:46:16,888 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:46:16,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.19ms. Allocated memory is still 191.9MB. Free memory was 146.0MB in the beginning and 134.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 00:46:16,889 INFO L158 Benchmark]: Boogie Preprocessor took 40.30ms. Allocated memory is still 191.9MB. Free memory was 134.9MB in the beginning and 133.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-02 00:46:16,889 INFO L158 Benchmark]: RCFGBuilder took 403.31ms. Allocated memory is still 191.9MB. Free memory was 133.1MB in the beginning and 116.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-04-02 00:46:16,890 INFO L158 Benchmark]: TraceAbstraction took 1355.42ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 116.0MB in the beginning and 182.2MB in the end (delta: -66.2MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2023-04-02 00:46:16,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.19ms. Allocated memory is still 191.9MB. Free memory was 146.0MB in the beginning and 134.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.30ms. Allocated memory is still 191.9MB. Free memory was 134.9MB in the beginning and 133.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 403.31ms. Allocated memory is still 191.9MB. Free memory was 133.1MB in the beginning and 116.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1355.42ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 116.0MB in the beginning and 182.2MB in the end (delta: -66.2MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 76]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L70] double x = 0.0 / 0.0; [L72] CALL, EXPR trunc_double(x) VAL [\old(x)=6441402378] [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; VAL [\old(x)=6441402378, x=6441402378] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 VAL [\old(x)=6441402378, lsw=2146435074, msw=2146435072, signbit=0, x=6441402378] [L31] EXPR msw & 0x7ff00000 VAL [\old(x)=6441402378, lsw=2146435074, msw & 0x7ff00000=2146435072, msw=2146435072, signbit=0, x=6441402378] [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=6441402378, exponent_less_1023=1024, lsw=2146435074, msw=2146435072, signbit=0, x=6441402378] [L49] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=6441402378, exponent_less_1023=1024, lsw=2146435074, msw=2146435072, signbit=0, x=6441402378] [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [\old(x)=6441402378, exponent_less_1023=1024, lsw=2146435074, msw=2146435072, signbit=0, x=6441402378] [L72] RET, EXPR trunc_double(x) VAL [trunc_double(x)=6441402379, x=6441402378] [L72] double res = trunc_double(x); [L75] CALL, EXPR isnan_double(res) VAL [\old(x)=6441402379] [L17] return x != x; VAL [\old(x)=6441402379, \result=0, x=6441402379] [L75] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=6441402379, x=6441402378] [L75] COND TRUE !isnan_double(res) [L76] reach_error() VAL [res=6441402379, x=6441402378] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 8 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-04-02 00:46:16,906 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...