/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:44:29,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:44:29,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:44:29,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:44:29,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:44:29,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:44:29,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:44:29,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:44:29,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:44:29,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:44:29,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:44:29,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:44:29,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:44:29,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:44:29,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:44:29,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:44:29,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:44:29,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:44:29,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:44:29,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:44:29,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:44:29,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:44:29,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:44:29,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:44:29,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:44:29,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:44:29,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:44:29,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:44:29,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:44:29,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:44:29,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:44:29,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:44:29,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:44:29,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:44:29,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:44:29,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:44:29,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 16:44:29,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:44:29,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:44:29,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:44:29,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:44:29,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:44:29,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:44:29,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:44:29,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:44:29,975 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:44:29,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:44:29,975 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:44:29,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:44:29,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:44:29,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:44:29,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:44:29,976 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:44:29,976 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:44:29,976 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:44:29,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:44:29,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:44:29,977 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:44:29,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:44:29,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:44:29,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:44:29,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:44:29,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:44:29,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:44:29,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:44:29,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:44:29,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:44:29,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:44:30,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:44:30,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:44:30,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:44:30,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:44:30,381 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:44:30,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2022-10-15 16:44:30,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8192e74a6/674cd0287ae64988819c5375bf39ce67/FLAG1f3eb1a61 [2022-10-15 16:44:31,068 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:44:31,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1231b.c [2022-10-15 16:44:31,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8192e74a6/674cd0287ae64988819c5375bf39ce67/FLAG1f3eb1a61 [2022-10-15 16:44:31,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8192e74a6/674cd0287ae64988819c5375bf39ce67 [2022-10-15 16:44:31,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:44:31,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:44:31,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:44:31,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:44:31,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:44:31,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:31,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f275e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31, skipping insertion in model container [2022-10-15 16:44:31,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:31,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:44:31,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:44:31,833 WARN L230 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_1231b.c[1765,1778] [2022-10-15 16:44:31,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:44:31,857 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:44:31,911 WARN L230 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_1231b.c[1765,1778] [2022-10-15 16:44:31,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:44:31,943 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:44:31,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31 WrapperNode [2022-10-15 16:44:31,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:44:31,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:44:31,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:44:31,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:44:31,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:31,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,021 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-10-15 16:44:32,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:44:32,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:44:32,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:44:32,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:44:32,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:44:32,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:44:32,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:44:32,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:44:32,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (1/1) ... [2022-10-15 16:44:32,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:44:32,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:44:32,146 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) [2022-10-15 16:44:32,177 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 [2022-10-15 16:44:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:44:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:44:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:44:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2022-10-15 16:44:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2022-10-15 16:44:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-15 16:44:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:44:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:44:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:44:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:44:32,396 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:44:32,398 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:44:32,683 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:44:32,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:44:32,692 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 16:44:32,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:32 BoogieIcfgContainer [2022-10-15 16:44:32,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:44:32,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:44:32,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:44:32,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:44:32,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:44:31" (1/3) ... [2022-10-15 16:44:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee36ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:32, skipping insertion in model container [2022-10-15 16:44:32,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:31" (2/3) ... [2022-10-15 16:44:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee36ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:32, skipping insertion in model container [2022-10-15 16:44:32,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:32" (3/3) ... [2022-10-15 16:44:32,707 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2022-10-15 16:44:32,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:44:32,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-15 16:44:32,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:44:32,898 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@68f47be5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:44:32,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-15 16:44:32,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 37 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:44:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 16:44:32,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:32,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 16:44:32,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2102430376, now seen corresponding path program 1 times [2022-10-15 16:44:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:32,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933506683] [2022-10-15 16:44:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:33,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933506683] [2022-10-15 16:44:33,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933506683] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:33,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:33,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:44:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48939151] [2022-10-15 16:44:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:33,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:44:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:33,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:44:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,228 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 37 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-10-15 16:44:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:33,292 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-10-15 16:44:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:44:33,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2022-10-15 16:44:33,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:33,305 INFO L225 Difference]: With dead ends: 43 [2022-10-15 16:44:33,305 INFO L226 Difference]: Without dead ends: 39 [2022-10-15 16:44:33,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,313 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:33,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 79 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:44:33,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-15 16:44:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-15 16:44:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.5) internal successors, (42), 35 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:44:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-10-15 16:44:33,374 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 6 [2022-10-15 16:44:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:33,374 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-10-15 16:44:33,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-10-15 16:44:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-10-15 16:44:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 16:44:33,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:33,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:44:33,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:44:33,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:33,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1771477905, now seen corresponding path program 1 times [2022-10-15 16:44:33,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:33,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710390252] [2022-10-15 16:44:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:33,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:33,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710390252] [2022-10-15 16:44:33,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710390252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:33,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:33,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:44:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70172300] [2022-10-15 16:44:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:33,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:44:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:33,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:44:33,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,586 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:44:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:33,621 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-10-15 16:44:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:44:33,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 16:44:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:33,623 INFO L225 Difference]: With dead ends: 36 [2022-10-15 16:44:33,623 INFO L226 Difference]: Without dead ends: 36 [2022-10-15 16:44:33,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,625 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:33,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 67 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:44:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-15 16:44:33,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-10-15 16:44:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:44:33,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2022-10-15 16:44:33,634 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 8 [2022-10-15 16:44:33,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:33,634 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2022-10-15 16:44:33,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:44:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-10-15 16:44:33,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 16:44:33,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:33,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:44:33,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:44:33,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:33,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:33,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1771477906, now seen corresponding path program 1 times [2022-10-15 16:44:33,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:33,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252114887] [2022-10-15 16:44:33,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:33,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:33,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:33,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252114887] [2022-10-15 16:44:33,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252114887] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:33,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:33,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:44:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177316768] [2022-10-15 16:44:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:33,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:44:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:44:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,831 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:44:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:33,868 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-10-15 16:44:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:44:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 16:44:33,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:33,870 INFO L225 Difference]: With dead ends: 33 [2022-10-15 16:44:33,870 INFO L226 Difference]: Without dead ends: 33 [2022-10-15 16:44:33,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:44:33,873 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:33,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 69 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:44:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-15 16:44:33,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-15 16:44:33,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:44:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-10-15 16:44:33,881 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2022-10-15 16:44:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:33,881 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-10-15 16:44:33,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:44:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-10-15 16:44:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 16:44:33,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:33,883 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] [2022-10-15 16:44:33,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:44:33,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash 783238808, now seen corresponding path program 1 times [2022-10-15 16:44:33,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:33,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488916382] [2022-10-15 16:44:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:33,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 16:44:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:34,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:34,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488916382] [2022-10-15 16:44:34,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488916382] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:34,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:34,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 16:44:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284146011] [2022-10-15 16:44:34,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 16:44:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:34,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 16:44:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,149 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:34,205 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-10-15 16:44:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:44:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-15 16:44:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:34,209 INFO L225 Difference]: With dead ends: 37 [2022-10-15 16:44:34,209 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 16:44:34,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,212 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:34,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 129 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:44:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 16:44:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-15 16:44:34,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 16:44:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-10-15 16:44:34,223 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 21 [2022-10-15 16:44:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:34,223 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-10-15 16:44:34,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-10-15 16:44:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 16:44:34,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:34,225 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] [2022-10-15 16:44:34,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:44:34,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:34,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2110994987, now seen corresponding path program 1 times [2022-10-15 16:44:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:34,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886026755] [2022-10-15 16:44:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:34,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 16:44:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:34,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:34,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886026755] [2022-10-15 16:44:34,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886026755] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:34,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:34,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 16:44:34,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457544889] [2022-10-15 16:44:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:34,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 16:44:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:34,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 16:44:34,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,488 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:34,569 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-10-15 16:44:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:44:34,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-10-15 16:44:34,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:34,575 INFO L225 Difference]: With dead ends: 41 [2022-10-15 16:44:34,576 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 16:44:34,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,587 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:34,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:44:34,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 16:44:34,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-10-15 16:44:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 16:44:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-10-15 16:44:34,609 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 22 [2022-10-15 16:44:34,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:34,610 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-10-15 16:44:34,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-10-15 16:44:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 16:44:34,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:34,615 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] [2022-10-15 16:44:34,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:44:34,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:34,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1038344628, now seen corresponding path program 1 times [2022-10-15 16:44:34,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:34,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130221248] [2022-10-15 16:44:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:34,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 16:44:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:34,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:34,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130221248] [2022-10-15 16:44:34,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130221248] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:34,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:34,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 16:44:34,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490152280] [2022-10-15 16:44:34,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:34,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 16:44:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 16:44:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,808 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:34,873 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-10-15 16:44:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:44:34,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-10-15 16:44:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:34,879 INFO L225 Difference]: With dead ends: 41 [2022-10-15 16:44:34,880 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 16:44:34,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:44:34,886 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:34,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:44:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 16:44:34,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-10-15 16:44:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 16:44:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-10-15 16:44:34,902 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2022-10-15 16:44:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:34,905 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-10-15 16:44:34,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-10-15 16:44:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 16:44:34,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:34,908 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] [2022-10-15 16:44:34,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:44:34,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:34,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1735068367, now seen corresponding path program 1 times [2022-10-15 16:44:34,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:34,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939053534] [2022-10-15 16:44:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:34,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 16:44:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:44:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:44:35,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:44:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939053534] [2022-10-15 16:44:35,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939053534] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:44:35,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:44:35,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 16:44:35,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085226048] [2022-10-15 16:44:35,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:44:35,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 16:44:35,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:44:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 16:44:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:44:35,270 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:44:35,335 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-10-15 16:44:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 16:44:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-15 16:44:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:44:35,338 INFO L225 Difference]: With dead ends: 41 [2022-10-15 16:44:35,338 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 16:44:35,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:44:35,342 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:44:35,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 167 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:44:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 16:44:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-10-15 16:44:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 16:44:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-10-15 16:44:35,364 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 24 [2022-10-15 16:44:35,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:44:35,364 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-10-15 16:44:35,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 16:44:35,366 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-10-15 16:44:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 16:44:35,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:44:35,368 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] [2022-10-15 16:44:35,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 16:44:35,368 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2022-10-15 16:44:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:44:35,369 INFO L85 PathProgramCache]: Analyzing trace with hash 7741968, now seen corresponding path program 1 times [2022-10-15 16:44:35,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:44:35,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527200346] [2022-10-15 16:44:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:44:35,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:44:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:44:35,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:44:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:44:35,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:44:35,462 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:44:35,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-10-15 16:44:35,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-10-15 16:44:35,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-10-15 16:44:35,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-10-15 16:44:35,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-10-15 16:44:35,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2022-10-15 16:44:35,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2022-10-15 16:44:35,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-10-15 16:44:35,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 16:44:35,474 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:44:35,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:44:35,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:44:35 BoogieIcfgContainer [2022-10-15 16:44:35,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:44:35,531 INFO L158 Benchmark]: Toolchain (without parser) took 4084.10ms. Allocated memory was 160.4MB in the beginning and 215.0MB in the end (delta: 54.5MB). Free memory was 135.0MB in the beginning and 124.2MB in the end (delta: 10.8MB). Peak memory consumption was 67.7MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,532 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 160.4MB. Free memory was 130.2MB in the beginning and 130.1MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:44:35,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.33ms. Allocated memory is still 160.4MB. Free memory was 134.7MB in the beginning and 123.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.62ms. Allocated memory is still 160.4MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,536 INFO L158 Benchmark]: Boogie Preprocessor took 76.20ms. Allocated memory is still 160.4MB. Free memory was 122.1MB in the beginning and 120.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,537 INFO L158 Benchmark]: RCFGBuilder took 595.04ms. Allocated memory is still 160.4MB. Free memory was 120.8MB in the beginning and 107.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,538 INFO L158 Benchmark]: TraceAbstraction took 2833.10ms. Allocated memory was 160.4MB in the beginning and 215.0MB in the end (delta: 54.5MB). Free memory was 107.0MB in the beginning and 124.2MB in the end (delta: -17.2MB). Peak memory consumption was 39.4MB. Max. memory is 8.0GB. [2022-10-15 16:44:35,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 160.4MB. Free memory was 130.2MB in the beginning and 130.1MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 489.33ms. Allocated memory is still 160.4MB. Free memory was 134.7MB in the beginning and 123.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.62ms. Allocated memory is still 160.4MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.20ms. Allocated memory is still 160.4MB. Free memory was 122.1MB in the beginning and 120.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 595.04ms. Allocated memory is still 160.4MB. Free memory was 120.8MB in the beginning and 107.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2833.10ms. Allocated memory was 160.4MB in the beginning and 215.0MB in the end (delta: 54.5MB). Free memory was 107.0MB in the beginning and 124.2MB in the end (delta: -17.2MB). Peak memory consumption was 39.4MB. 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: 70]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryArithmeticDOUBLEoperation at line 63, overapproximation of memtrack at line 70. Possible FailurePath: [L62] double x = __VERIFIER_nondet_double(); [L63] double y = 0.0 / 0.0; [L64] CALL, EXPR isnan_double(x) [L18] return x != x; VAL [\old(x)=4294967304, \result=0, x=4294967304] [L64] RET, EXPR isnan_double(x) [L64] COND TRUE !isnan_double(x) [L66] CALL, EXPR fmin_double(x, y) [L47] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967304] [L20] __uint32_t msw, lsw; VAL [\old(x)=4294967304, x=4294967304] [L23] ieee_double_shape_type ew_u; VAL [\old(x)=4294967304, ew_u={5:0}, x=4294967304] [L24] ew_u.value = (x) VAL [\old(x)=4294967304, ew_u={5:0}, x=4294967304] [L25] EXPR ew_u.parts.msw VAL [\old(x)=4294967304, ew_u={5:0}, ew_u.parts.msw=4293918721, x=4294967304] [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw VAL [\old(x)=4294967304, ew_u={5:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967304] [L26] (lsw) = ew_u.parts.lsw [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967304, lsw=4294967297, msw=4293918721, x=4294967304] [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967304, lsw=4294967297, msw=4293918721, x=4294967304] [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967304, lsw=4294967297, msw=4293918721, x=4294967304] [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; VAL [\old(x)=4294967304, \result=0, lsw=4294967297, msw=4293918721, x=4294967304] [L47] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967304, \old(y)=4294967305, __fpclassify_double(x)=0, x=4294967304, y=4294967305] [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; VAL [\old(x)=4294967304, \old(y)=4294967305, \result=4294967305, x=4294967304, y=4294967305] [L66] RET, EXPR fmin_double(x, y) [L66] double res = fmin_double(x, y); [L69] COND TRUE res != x VAL [res=4294967305, x=4294967304, y=4294967305] [L70] reach_error() VAL [res=4294967305, x=4294967304, y=4294967305] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 801 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 522 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 279 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2022-10-15 16:44:35,616 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...