/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/floats-cbmc-regression/float-to-double2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:46:17,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:46:17,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:46:17,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:46:17,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:46:17,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:46:17,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:46:17,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:46:17,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:46:17,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:46:17,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:46:17,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:46:17,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:46:17,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:46:17,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:46:17,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:46:17,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:46:17,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:46:17,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:46:17,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:46:17,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:46:17,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:46:17,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:46:17,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:46:17,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:46:17,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:46:17,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:46:17,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:46:17,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:46:17,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:46:17,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:46:17,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:46:17,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:46:17,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:46:17,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:46:17,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:46:17,188 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 16:46:17,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:46:17,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:46:17,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:46:17,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:46:17,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:46:17,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:46:17,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:46:17,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:46:17,255 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:46:17,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:46:17,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:46:17,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:46:17,257 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:46:17,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:46:17,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:46:17,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:46:17,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:46:17,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:46:17,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:46:17,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:46:17,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:46:17,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:46:17,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:46:17,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:46:17,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:46:17,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:46:17,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:46:17,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:46:17,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:46:17,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:46:17,739 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:46:17,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-10-15 16:46:17,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d30d53a/8b85d104a2214cdfbfb33420ca6910b0/FLAGd368ed0a3 [2022-10-15 16:46:18,442 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:46:18,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2022-10-15 16:46:18,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d30d53a/8b85d104a2214cdfbfb33420ca6910b0/FLAGd368ed0a3 [2022-10-15 16:46:18,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d30d53a/8b85d104a2214cdfbfb33420ca6910b0 [2022-10-15 16:46:18,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:46:18,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:46:18,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:46:18,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:46:18,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:46:18,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:46:18" (1/1) ... [2022-10-15 16:46:18,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353baefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:18, skipping insertion in model container [2022-10-15 16:46:18,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:46:18" (1/1) ... [2022-10-15 16:46:18,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:46:18,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:46:19,127 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/floats-cbmc-regression/float-to-double2.c[380,393] [2022-10-15 16:46:19,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:46:19,144 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:46:19,163 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/floats-cbmc-regression/float-to-double2.c[380,393] [2022-10-15 16:46:19,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:46:19,197 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:46:19,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19 WrapperNode [2022-10-15 16:46:19,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:46:19,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:46:19,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:46:19,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:46:19,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,243 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-10-15 16:46:19,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:46:19,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:46:19,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:46:19,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:46:19,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:46:19,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:46:19,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:46:19,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:46:19,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (1/1) ... [2022-10-15 16:46:19,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:46:19,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:46:19,304 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 16:46:19,315 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 16:46:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:46:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:46:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:46:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:46:19,435 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:46:19,437 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:46:19,571 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:46:19,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:46:19,578 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 16:46:19,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:46:19 BoogieIcfgContainer [2022-10-15 16:46:19,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:46:19,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:46:19,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:46:19,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:46:19,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:46:18" (1/3) ... [2022-10-15 16:46:19,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d83d7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:46:19, skipping insertion in model container [2022-10-15 16:46:19,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:46:19" (2/3) ... [2022-10-15 16:46:19,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d83d7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:46:19, skipping insertion in model container [2022-10-15 16:46:19,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:46:19" (3/3) ... [2022-10-15 16:46:19,594 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2022-10-15 16:46:19,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:46:19,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:46:19,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:46:19,725 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;@64453449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:46:19,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:46:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 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 16:46:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:46:19,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:46:19,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:46:19,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:46:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:46:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-15 16:46:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:46:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313670657] [2022-10-15 16:46:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:46:19,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:46:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:46:19,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:46:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:46:19,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:46:19,986 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:46:19,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 16:46:19,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 16:46:19,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:46:20,000 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-15 16:46:20,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:46:20,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:46:20 BoogieIcfgContainer [2022-10-15 16:46:20,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:46:20,033 INFO L158 Benchmark]: Toolchain (without parser) took 1216.98ms. Allocated memory is still 152.0MB. Free memory was 126.5MB in the beginning and 131.2MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:46:20,035 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 152.0MB. Free memory was 121.4MB in the beginning and 121.0MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:46:20,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.55ms. Allocated memory is still 152.0MB. Free memory was 126.3MB in the beginning and 116.6MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:46:20,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.41ms. Allocated memory is still 152.0MB. Free memory was 116.4MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:46:20,039 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 152.0MB. Free memory was 115.0MB in the beginning and 114.1MB in the end (delta: 922.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:46:20,044 INFO L158 Benchmark]: RCFGBuilder took 314.40ms. Allocated memory is still 152.0MB. Free memory was 114.1MB in the beginning and 105.6MB in the end (delta: 8.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:46:20,047 INFO L158 Benchmark]: TraceAbstraction took 445.43ms. Allocated memory is still 152.0MB. Free memory was 104.8MB in the beginning and 131.2MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:46:20,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 152.0MB. Free memory was 121.4MB in the beginning and 121.0MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 376.55ms. Allocated memory is still 152.0MB. Free memory was 126.3MB in the beginning and 116.6MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.41ms. Allocated memory is still 152.0MB. Free memory was 116.4MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 152.0MB. Free memory was 115.0MB in the beginning and 114.1MB in the end (delta: 922.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 314.40ms. Allocated memory is still 152.0MB. Free memory was 114.1MB in the beginning and 105.6MB in the end (delta: 8.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 445.43ms. Allocated memory is still 152.0MB. Free memory was 104.8MB in the beginning and 131.2MB in the end (delta: -26.4MB). There was no memory consumed. 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: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of memtrack at line 11, overapproximation of someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; VAL [f=53, fp=53] [L11] COND TRUE !(d == fp) VAL [f=53, fp=53] [L11] reach_error() VAL [f=53, fp=53] - UnprovableResult [Line: 5]: 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 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 16:46:20,111 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...