/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/signedintegeroverflow-regression/Division-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:48:46,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:48:46,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:48:46,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:48:46,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:48:46,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:48:46,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:48:46,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:48:46,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:48:46,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:48:46,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:48:46,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:48:46,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:48:46,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:48:46,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:48:46,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:48:46,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:48:46,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:48:46,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:48:46,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:48:46,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:48:46,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:48:46,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:48:46,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:48:46,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:48:46,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:48:46,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:48:46,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:48:46,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:48:46,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:48:46,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:48:46,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:48:46,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:48:46,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:48:46,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:48:46,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:48:46,346 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 17:48:46,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:48:46,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:48:46,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:48:46,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:48:46,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:48:46,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:48:46,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:48:46,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:48:46,386 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:48:46,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:48:46,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:48:46,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:48:46,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:48:46,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:48:46,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:48:46,387 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:48:46,388 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:48:46,388 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:48:46,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:48:46,388 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:48:46,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:48:46,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:48:46,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:48:46,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:48:46,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:48:46,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:48:46,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:48:46,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:48:46,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:48:46,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:48:46,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:48:46,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:48:46,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:48:46,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:48:46,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:48:46,762 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:48:46,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/Division-1.i [2022-10-15 17:48:46,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083d21a08/982a6936e6664ed7aa1cc484250a3f7d/FLAGed4b5abc5 [2022-10-15 17:48:47,520 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:48:47,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/Division-1.i [2022-10-15 17:48:47,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083d21a08/982a6936e6664ed7aa1cc484250a3f7d/FLAGed4b5abc5 [2022-10-15 17:48:47,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083d21a08/982a6936e6664ed7aa1cc484250a3f7d [2022-10-15 17:48:47,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:48:47,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:48:47,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:48:47,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:48:47,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:48:47,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:48:47" (1/1) ... [2022-10-15 17:48:47,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a635695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:47, skipping insertion in model container [2022-10-15 17:48:47,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:48:47" (1/1) ... [2022-10-15 17:48:47,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:48:47,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:48:48,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:48:48,211 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:48:48,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:48:48,289 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:48:48,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48 WrapperNode [2022-10-15 17:48:48,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:48:48,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:48:48,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:48:48,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:48:48,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,343 INFO L138 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-10-15 17:48:48,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:48:48,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:48:48,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:48:48,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:48:48,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:48:48,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:48:48,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:48:48,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:48:48,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (1/1) ... [2022-10-15 17:48:48,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:48:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:48:48,417 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 17:48:48,439 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 17:48:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:48:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:48:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:48:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:48:48,598 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:48:48,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:48:48,670 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:48:48,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:48:48,677 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:48:48,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:48:48 BoogieIcfgContainer [2022-10-15 17:48:48,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:48:48,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:48:48,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:48:48,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:48:48,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:48:47" (1/3) ... [2022-10-15 17:48:48,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eeb74f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:48:48, skipping insertion in model container [2022-10-15 17:48:48,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:48:48" (2/3) ... [2022-10-15 17:48:48,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eeb74f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:48:48, skipping insertion in model container [2022-10-15 17:48:48,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:48:48" (3/3) ... [2022-10-15 17:48:48,728 INFO L112 eAbstractionObserver]: Analyzing ICFG Division-1.i [2022-10-15 17:48:48,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:48:48,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-15 17:48:48,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:48:48,829 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;@3f8ed117, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:48:48,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-15 17:48:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 17:48:48,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 17:48:48,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:48:48,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 17:48:48,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:48:48,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:48:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-10-15 17:48:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:48:48,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583229521] [2022-10-15 17:48:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:48:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:48:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:48:49,064 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 17:48:49,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:48:49,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583229521] [2022-10-15 17:48:49,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583229521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:48:49,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:48:49,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:48:49,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706808410] [2022-10-15 17:48:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:48:49,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:48:49,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:48:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:48:49,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:48:49,115 INFO L87 Difference]: Start difference. First operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 17:48:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:48:49,140 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2022-10-15 17:48:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:48:49,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-10-15 17:48:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:48:49,162 INFO L225 Difference]: With dead ends: 5 [2022-10-15 17:48:49,162 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:48:49,168 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 17:48:49,178 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:48:49,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:48:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:48:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:48:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 17:48:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:48:49,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-10-15 17:48:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:48:49,225 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:48:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 17:48:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:48:49,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:48:49,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2022-10-15 17:48:49,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:48:49,236 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-15 17:48:49,240 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:48:49,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:48:49 BoogieIcfgContainer [2022-10-15 17:48:49,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:48:49,252 INFO L158 Benchmark]: Toolchain (without parser) took 1396.78ms. Allocated memory is still 168.8MB. Free memory was 141.0MB in the beginning and 130.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,253 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 168.8MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:48:49,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.59ms. Allocated memory is still 168.8MB. Free memory was 140.9MB in the beginning and 126.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.91ms. Allocated memory is still 168.8MB. Free memory was 126.5MB in the beginning and 125.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,264 INFO L158 Benchmark]: Boogie Preprocessor took 24.72ms. Allocated memory is still 168.8MB. Free memory was 125.0MB in the beginning and 123.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,266 INFO L158 Benchmark]: RCFGBuilder took 308.48ms. Allocated memory is still 168.8MB. Free memory was 123.9MB in the beginning and 115.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,269 INFO L158 Benchmark]: TraceAbstraction took 530.16ms. Allocated memory is still 168.8MB. Free memory was 149.9MB in the beginning and 130.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-10-15 17:48:49,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 168.8MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 428.59ms. Allocated memory is still 168.8MB. Free memory was 140.9MB in the beginning and 126.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.91ms. Allocated memory is still 168.8MB. Free memory was 126.5MB in the beginning and 125.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.72ms. Allocated memory is still 168.8MB. Free memory was 125.0MB in the beginning and 123.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 308.48ms. Allocated memory is still 168.8MB. Free memory was 123.9MB in the beginning and 115.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 530.16ms. Allocated memory is still 168.8MB. Free memory was 149.9MB in the beginning and 130.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. 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 - PositiveResult [Line: 331]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 17:48:49,340 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...