/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/filter2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:42:00,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:42:00,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:42:00,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:42:00,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:42:00,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:42:00,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:42:00,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:42:00,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:42:00,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:42:00,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:42:00,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:42:00,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:42:00,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:42:00,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:42:00,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:42:00,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:42:00,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:42:00,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:42:00,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:42:00,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:42:00,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:42:00,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:42:00,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:42:00,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:42:00,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:42:00,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:42:00,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:42:00,354 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 16:42:00,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:42:00,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:42:00,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:42:00,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:42:00,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:42:00,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:42:00,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:42:00,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:42:00,390 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:42:00,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:42:00,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:42:00,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:42:00,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:42:00,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:42:00,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:42:00,391 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:42:00,391 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:42:00,393 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:42:00,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:42:00,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:42:00,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:42:00,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:42:00,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:42:00,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:42:00,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:42:00,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:42:00,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:42:00,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:42:00,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:42:00,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:42:00,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:42:00,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:42:00,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:42:00,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:42:00,836 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:42:00,837 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:42:00,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2.c [2022-10-15 16:42:00,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3935822d0/22bbb03758bf4e3fbacf18a1ca3136cd/FLAG2e90ceccf [2022-10-15 16:42:01,562 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:42:01,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2.c [2022-10-15 16:42:01,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3935822d0/22bbb03758bf4e3fbacf18a1ca3136cd/FLAG2e90ceccf [2022-10-15 16:42:01,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3935822d0/22bbb03758bf4e3fbacf18a1ca3136cd [2022-10-15 16:42:01,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:42:01,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:42:01,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:42:01,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:42:01,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:42:01,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46676334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01, skipping insertion in model container [2022-10-15 16:42:01,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:42:01,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:42:01,812 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/filter2.c[652,665] [2022-10-15 16:42:01,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:42:01,841 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:42:01,854 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/filter2.c[652,665] [2022-10-15 16:42:01,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:42:01,875 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:42:01,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01 WrapperNode [2022-10-15 16:42:01,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:42:01,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:42:01,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:42:01,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:42:01,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,918 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-10-15 16:42:01,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:42:01,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:42:01,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:42:01,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:42:01,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:42:01,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:42:01,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:42:01,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:42:01,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (1/1) ... [2022-10-15 16:42:01,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:42:01,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:42:01,982 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 16:42:02,004 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 16:42:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:42:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 16:42:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 16:42:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:42:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:42:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:42:02,108 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:42:02,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:42:02,252 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:42:02,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:42:02,269 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 16:42:02,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:42:02 BoogieIcfgContainer [2022-10-15 16:42:02,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:42:02,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:42:02,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:42:02,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:42:02,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:42:01" (1/3) ... [2022-10-15 16:42:02,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fde514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:42:02, skipping insertion in model container [2022-10-15 16:42:02,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:42:01" (2/3) ... [2022-10-15 16:42:02,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fde514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:42:02, skipping insertion in model container [2022-10-15 16:42:02,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:42:02" (3/3) ... [2022-10-15 16:42:02,302 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2022-10-15 16:42:02,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:42:02,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:42:02,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:42:02,466 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;@fbb81c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:42:02,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:42:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 16:42:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 16:42:02,507 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:02,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:02,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:02,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1352585745, now seen corresponding path program 1 times [2022-10-15 16:42:02,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:02,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824773003] [2022-10-15 16:42:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:02,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 16:42:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-15 16:42:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 16:42:02,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:42:02,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824773003] [2022-10-15 16:42:02,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824773003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:42:02,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:42:02,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:42:02,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451978829] [2022-10-15 16:42:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:42:02,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 16:42:02,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:42:02,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 16:42:02,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 16:42:02,897 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:42:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:42:02,917 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-10-15 16:42:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 16:42:02,920 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-10-15 16:42:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:42:02,931 INFO L225 Difference]: With dead ends: 22 [2022-10-15 16:42:02,932 INFO L226 Difference]: Without dead ends: 20 [2022-10-15 16:42:02,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 16:42:02,939 INFO L413 NwaCegarLoop]: 24 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, 24 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 16:42:02,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:42:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-15 16:42:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-15 16:42:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 16:42:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-10-15 16:42:02,988 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2022-10-15 16:42:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:42:02,989 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-10-15 16:42:02,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 16:42:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-10-15 16:42:02,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 16:42:02,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:02,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:02,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:42:02,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash 680587055, now seen corresponding path program 1 times [2022-10-15 16:42:02,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:02,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444357596] [2022-10-15 16:42:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:02,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 16:42:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:03,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-15 16:42:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 16:42:03,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:42:03,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444357596] [2022-10-15 16:42:03,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444357596] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:42:03,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:42:03,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:42:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884472015] [2022-10-15 16:42:03,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:42:03,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:42:03,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:42:03,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:42:03,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:42:03,156 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 16:42:03,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:42:03,175 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-10-15 16:42:03,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:42:03,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-10-15 16:42:03,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:42:03,177 INFO L225 Difference]: With dead ends: 28 [2022-10-15 16:42:03,177 INFO L226 Difference]: Without dead ends: 28 [2022-10-15 16:42:03,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:42:03,180 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:42:03,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 38 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:42:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-15 16:42:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-10-15 16:42:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 16:42:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-10-15 16:42:03,190 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2022-10-15 16:42:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:42:03,197 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-10-15 16:42:03,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 16:42:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-10-15 16:42:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 16:42:03,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:03,199 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:03,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:42:03,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash 461677540, now seen corresponding path program 1 times [2022-10-15 16:42:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:03,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337984673] [2022-10-15 16:42:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:03,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:42:03,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:42:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:42:03,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:42:03,314 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:42:03,316 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 16:42:03,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 16:42:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:42:03,323 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-15 16:42:03,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:42:03,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:42:03 BoogieIcfgContainer [2022-10-15 16:42:03,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:42:03,355 INFO L158 Benchmark]: Toolchain (without parser) took 1752.70ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 100.5MB in the end (delta: 24.5MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,356 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 122.3MB in the beginning and 122.3MB in the end (delta: 79.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:42:03,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 114.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.85ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,358 INFO L158 Benchmark]: Boogie Preprocessor took 25.13ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 112.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,358 INFO L158 Benchmark]: RCFGBuilder took 328.71ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 101.5MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,359 INFO L158 Benchmark]: TraceAbstraction took 1071.96ms. Allocated memory is still 151.0MB. Free memory was 100.9MB in the beginning and 100.5MB in the end (delta: 389.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:42:03,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 122.3MB in the beginning and 122.3MB in the end (delta: 79.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 114.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.85ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.13ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 112.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 328.71ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 101.5MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1071.96ms. Allocated memory is still 151.0MB. Free memory was 100.9MB in the beginning and 100.5MB in the end (delta: 389.1kB). Peak memory consumption was 1.0MB. 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: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of memtrack at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of to_real at line 30. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] int i; [L25] E = __VERIFIER_nondet_double() [L26] E0 = __VERIFIER_nondet_double() [L27] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L27] RET assume_abort_if_not(E >= 0. && E <= 1.) [L28] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) [L30] S0 = 0 [L31] S = 0 [L33] i = 0 VAL [i=0] [L33] COND TRUE i <= 1000000 [L34] E1 = E0 [L35] E0 = E [L37] E = __VERIFIER_nondet_double() [L38] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L38] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=54, E=53, E=56, i=0] [L40] S1 = S0 [L41] S0 = S [L42] S = 0.7*E - E0*1.3 + E1*1.1 + S0*1.4 - S1*0.7 [L44] CALL __VERIFIER_assert(S >= -4. && S <= 4.) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 8/8 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 16:42:03,425 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...