/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-benchs/zonotope_loose.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:42:56,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:42:56,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:42:56,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:42:56,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:42:56,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:42:56,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:42:56,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:42:56,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:42:56,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:42:56,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:42:56,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:42:56,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:42:56,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:42:56,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:42:56,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:42:56,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:42:56,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:42:56,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:42:56,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:42:56,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:42:56,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:42:56,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:42:56,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:42:56,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 16:42:56,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 16:42:56,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 16:42:56,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 16:42:56,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 16:42:56,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 16:42:56,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:42:56,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:42:56,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:42:56,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:42:56,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:42:56,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:42:56,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:42:56,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:42:56,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:42:56,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:42:56,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:42:56,721 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 16:42:56,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:42:56,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:42:56,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:42:56,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:42:56,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:42:56,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:42:56,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:42:56,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:42:56,788 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:42:56,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:42:56,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:42:56,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:42:56,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:42:56,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:42:56,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:42:56,791 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:42:56,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:42:56,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:42:56,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:42:56,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:42:56,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:42:56,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:42:56,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:42:56,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:42:56,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:42:56,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:42:57,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:42:57,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:42:57,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:42:57,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:42:57,243 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:42:57,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-10-15 16:42:57,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cdc0c4e/7daa1d96461e433bbae744764918f985/FLAG7905eb1d3 [2022-10-15 16:42:57,963 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:42:57,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-10-15 16:42:57,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cdc0c4e/7daa1d96461e433bbae744764918f985/FLAG7905eb1d3 [2022-10-15 16:42:58,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cdc0c4e/7daa1d96461e433bbae744764918f985 [2022-10-15 16:42:58,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:42:58,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:42:58,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:42:58,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:42:58,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:42:58,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73de5484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58, skipping insertion in model container [2022-10-15 16:42:58,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:42:58,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:42:58,520 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-benchs/zonotope_loose.c[577,590] [2022-10-15 16:42:58,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:42:58,545 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:42:58,559 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-benchs/zonotope_loose.c[577,590] [2022-10-15 16:42:58,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:42:58,578 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:42:58,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58 WrapperNode [2022-10-15 16:42:58,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:42:58,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:42:58,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:42:58,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:42:58,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,617 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2022-10-15 16:42:58,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:42:58,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:42:58,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:42:58,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:42:58,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,638 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:42:58,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:42:58,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:42:58,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:42:58,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (1/1) ... [2022-10-15 16:42:58,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:42:58,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:42:58,680 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 16:42:58,704 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 16:42:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:42:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:42:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:42:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:42:58,812 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:42:58,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:42:58,941 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:42:58,948 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:42:58,949 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 16:42:58,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:42:58 BoogieIcfgContainer [2022-10-15 16:42:58,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:42:58,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:42:58,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:42:58,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:42:58,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:42:58" (1/3) ... [2022-10-15 16:42:58,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15926f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:42:58, skipping insertion in model container [2022-10-15 16:42:58,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:58" (2/3) ... [2022-10-15 16:42:58,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15926f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:42:58, skipping insertion in model container [2022-10-15 16:42:58,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:42:58" (3/3) ... [2022-10-15 16:42:58,963 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2022-10-15 16:42:58,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:42:58,988 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:42:59,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:42:59,058 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;@3276f0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:42:59,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:42:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 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 16:42:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 16:42:59,093 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:59,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:59,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-10-15 16:42:59,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:59,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821418033] [2022-10-15 16:42:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:59,435 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 16:42:59,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:42:59,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821418033] [2022-10-15 16:42:59,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821418033] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:42:59,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:42:59,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:42:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242867216] [2022-10-15 16:42:59,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:42:59,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 16:42:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:42:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 16:42:59,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 16:42:59,511 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:42:59,533 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-10-15 16:42:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 16:42:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 16:42:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:42:59,549 INFO L225 Difference]: With dead ends: 14 [2022-10-15 16:42:59,549 INFO L226 Difference]: Without dead ends: 12 [2022-10-15 16:42:59,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 16:42:59,559 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:42:59,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:42:59,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-15 16:42:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-15 16:42:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-15 16:42:59,602 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-10-15 16:42:59,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:42:59,603 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-10-15 16:42:59,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-15 16:42:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 16:42:59,605 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:59,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:59,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:42:59,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-10-15 16:42:59,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:59,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237916862] [2022-10-15 16:42:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:42:59,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:42:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:42:59,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:42:59,719 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:42:59,721 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 16:42:59,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 16:42:59,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:42:59,728 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-15 16:42:59,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:42:59,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:42:59 BoogieIcfgContainer [2022-10-15 16:42:59,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:42:59,759 INFO L158 Benchmark]: Toolchain (without parser) took 1435.83ms. Allocated memory is still 158.3MB. Free memory was 132.6MB in the beginning and 124.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2022-10-15 16:42:59,760 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 158.3MB. Free memory was 128.3MB in the beginning and 128.2MB in the end (delta: 148.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:42:59,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.41ms. Allocated memory is still 158.3MB. Free memory was 132.4MB in the beginning and 122.8MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:42:59,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.27ms. Allocated memory is still 158.3MB. Free memory was 122.7MB in the beginning and 121.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:42:59,762 INFO L158 Benchmark]: Boogie Preprocessor took 22.24ms. Allocated memory is still 158.3MB. Free memory was 121.2MB in the beginning and 120.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:42:59,763 INFO L158 Benchmark]: RCFGBuilder took 310.22ms. Allocated memory is still 158.3MB. Free memory was 120.2MB in the beginning and 110.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 16:42:59,763 INFO L158 Benchmark]: TraceAbstraction took 803.32ms. Allocated memory is still 158.3MB. Free memory was 109.6MB in the beginning and 124.8MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:42:59,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 158.3MB. Free memory was 128.3MB in the beginning and 128.2MB in the end (delta: 148.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.41ms. Allocated memory is still 158.3MB. Free memory was 132.4MB in the beginning and 122.8MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.27ms. Allocated memory is still 158.3MB. Free memory was 122.7MB in the beginning and 121.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.24ms. Allocated memory is still 158.3MB. Free memory was 121.2MB in the beginning and 120.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 310.22ms. Allocated memory is still 158.3MB. Free memory was 120.2MB in the beginning and 110.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 803.32ms. Allocated memory is still 158.3MB. Free memory was 109.6MB in the beginning and 124.8MB in the end (delta: -15.1MB). 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: 14]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24, overapproximation of memtrack at line 14. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 105.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 16]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-15 16:42:59,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...