/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/array-tiling/skipped.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:28:37,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:28:37,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:28:37,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:28:37,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:28:37,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:28:37,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:28:37,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:28:37,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:28:37,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:28:37,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:28:37,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:28:37,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:28:37,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:28:37,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:28:37,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:28:37,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:28:37,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:28:37,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:28:37,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:28:37,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:28:37,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:28:37,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:28:37,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:28:37,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 16:28:37,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 16:28:37,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 16:28:37,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 16:28:37,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 16:28:37,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 16:28:37,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:28:37,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:28:37,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:28:37,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:28:37,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:28:37,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:28:37,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:28:37,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:28:37,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:28:37,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:28:37,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:28:37,424 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 16:28:37,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:28:37,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:28:37,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:28:37,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:28:37,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:28:37,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:28:37,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:28:37,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:28:37,455 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:28:37,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:28:37,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:28:37,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:28:37,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:28:37,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:28:37,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:28:37,457 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:28:37,457 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:28:37,458 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:28:37,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:28:37,458 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:28:37,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:28:37,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:28:37,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:28:37,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:28:37,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:28:37,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:28:37,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:28:37,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:28:37,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:28:37,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:28:37,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:28:37,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:28:37,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:28:37,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:28:37,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:28:37,849 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:28:37,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-tiling/skipped.c [2022-10-15 16:28:37,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c5133e16/72473e8365ef4debb3d760e15149904d/FLAG5ff07523b [2022-10-15 16:28:38,580 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:28:38,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-tiling/skipped.c [2022-10-15 16:28:38,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c5133e16/72473e8365ef4debb3d760e15149904d/FLAG5ff07523b [2022-10-15 16:28:38,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c5133e16/72473e8365ef4debb3d760e15149904d [2022-10-15 16:28:38,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:28:38,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:28:38,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:28:38,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:28:38,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:28:38,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:38" (1/1) ... [2022-10-15 16:28:38,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d91c6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:38, skipping insertion in model container [2022-10-15 16:28:38,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:38" (1/1) ... [2022-10-15 16:28:38,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:28:39,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:28:39,149 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/array-tiling/skipped.c[398,411] [2022-10-15 16:28:39,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:28:39,181 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:28:39,195 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/array-tiling/skipped.c[398,411] [2022-10-15 16:28:39,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:28:39,219 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:28:39,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39 WrapperNode [2022-10-15 16:28:39,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:28:39,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:28:39,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:28:39,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:28:39,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,269 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-10-15 16:28:39,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:28:39,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:28:39,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:28:39,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:28:39,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:28:39,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:28:39,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:28:39,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:28:39,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (1/1) ... [2022-10-15 16:28:39,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:28:39,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:39,337 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 16:28:39,361 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 16:28:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:28:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:28:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:28:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 16:28:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:28:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:28:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:28:39,480 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:28:39,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:28:39,808 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:28:39,822 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:28:39,823 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 16:28:39,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:39 BoogieIcfgContainer [2022-10-15 16:28:39,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:28:39,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:28:39,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:28:39,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:28:39,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:28:38" (1/3) ... [2022-10-15 16:28:39,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf37e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:39, skipping insertion in model container [2022-10-15 16:28:39,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:39" (2/3) ... [2022-10-15 16:28:39,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf37e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:39, skipping insertion in model container [2022-10-15 16:28:39,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:39" (3/3) ... [2022-10-15 16:28:39,837 INFO L112 eAbstractionObserver]: Analyzing ICFG skipped.c [2022-10-15 16:28:39,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:28:39,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-15 16:28:40,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:28:40,023 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;@468ede44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:28:40,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-15 16:28:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.896551724137931) internal successors, (55), 43 states have internal predecessors, (55), 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 16:28:40,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 16:28:40,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:40,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 16:28:40,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 28788099, now seen corresponding path program 1 times [2022-10-15 16:28:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:40,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629104830] [2022-10-15 16:28:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:40,250 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 16:28:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:40,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629104830] [2022-10-15 16:28:40,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629104830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:28:40,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:28:40,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:28:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914421865] [2022-10-15 16:28:40,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:28:40,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:28:40,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:40,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:28:40,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:28:40,296 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.896551724137931) internal successors, (55), 43 states have internal predecessors, (55), 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 2.5) internal successors, (5), 3 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 16:28:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:40,350 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-10-15 16:28:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:28:40,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) Word has length 5 [2022-10-15 16:28:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:40,364 INFO L225 Difference]: With dead ends: 46 [2022-10-15 16:28:40,364 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 16:28:40,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:28:40,371 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:40,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 79 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:28:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 16:28:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 16:28:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 41 states have internal predecessors, (47), 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 16:28:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-15 16:28:40,411 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 5 [2022-10-15 16:28:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:40,412 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-15 16:28:40,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 16:28:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-15 16:28:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 16:28:40,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:40,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 16:28:40,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:28:40,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash 28693957, now seen corresponding path program 1 times [2022-10-15 16:28:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:40,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364036280] [2022-10-15 16:28:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:40,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:40,721 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 16:28:40,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:40,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364036280] [2022-10-15 16:28:40,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364036280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:28:40,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:28:40,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:28:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627714076] [2022-10-15 16:28:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:28:40,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:28:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:28:40,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:28:40,726 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 16:28:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:40,827 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-15 16:28:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:28:40,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) Word has length 5 [2022-10-15 16:28:40,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:40,829 INFO L225 Difference]: With dead ends: 47 [2022-10-15 16:28:40,829 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 16:28:40,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:28:40,832 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:40,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 61 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:28:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 16:28:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-10-15 16:28:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 43 states have internal predecessors, (50), 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 16:28:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-10-15 16:28:40,840 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 5 [2022-10-15 16:28:40,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:40,841 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-10-15 16:28:40,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 16:28:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-10-15 16:28:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 16:28:40,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:40,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 16:28:40,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:28:40,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:40,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:40,843 INFO L85 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2022-10-15 16:28:40,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:40,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914011883] [2022-10-15 16:28:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:40,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:40,888 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 16:28:40,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914011883] [2022-10-15 16:28:40,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914011883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:28:40,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:28:40,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:28:40,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818582525] [2022-10-15 16:28:40,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:28:40,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:28:40,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:40,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:28:40,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:28:40,892 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 16:28:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:40,923 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-10-15 16:28:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:28:40,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) Word has length 5 [2022-10-15 16:28:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:40,924 INFO L225 Difference]: With dead ends: 38 [2022-10-15 16:28:40,925 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 16:28:40,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:28:40,927 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:40,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 28 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:28:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 16:28:40,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-15 16:28:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 37 states have internal predecessors, (43), 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 16:28:40,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-10-15 16:28:40,934 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 5 [2022-10-15 16:28:40,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:40,934 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-10-15 16:28:40,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 16:28:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-10-15 16:28:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:28:40,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:40,936 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:28:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:28:40,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -477675640, now seen corresponding path program 1 times [2022-10-15 16:28:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:40,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733153490] [2022-10-15 16:28:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:41,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:41,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733153490] [2022-10-15 16:28:41,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733153490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:28:41,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281817382] [2022-10-15 16:28:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:41,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:41,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:41,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:28:41,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 16:28:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:41,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-15 16:28:41,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:28:41,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-15 16:28:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:41,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:28:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:41,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281817382] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:28:41,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:28:41,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-15 16:28:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866283724] [2022-10-15 16:28:41,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:28:41,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 16:28:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:41,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 16:28:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:28:41,511 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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 16:28:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:41,714 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2022-10-15 16:28:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:28:41,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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 9 [2022-10-15 16:28:41,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:41,717 INFO L225 Difference]: With dead ends: 78 [2022-10-15 16:28:41,717 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 16:28:41,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:28:41,719 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 44 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:41,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 85 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:28:41,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 16:28:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 61. [2022-10-15 16:28:41,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 60 states have internal predecessors, (74), 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 16:28:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions. [2022-10-15 16:28:41,731 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 9 [2022-10-15 16:28:41,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:41,731 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 74 transitions. [2022-10-15 16:28:41,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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 16:28:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2022-10-15 16:28:41,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 16:28:41,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:41,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:28:41,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 16:28:41,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:41,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1923044491, now seen corresponding path program 1 times [2022-10-15 16:28:41,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:41,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861953992] [2022-10-15 16:28:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:41,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:42,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:42,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861953992] [2022-10-15 16:28:42,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861953992] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:28:42,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012200227] [2022-10-15 16:28:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:42,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:42,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:42,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:28:42,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 16:28:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:42,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 16:28:42,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:28:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:42,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:28:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:42,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012200227] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:28:42,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:28:42,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 16:28:42,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409423095] [2022-10-15 16:28:42,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:28:42,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 16:28:42,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 16:28:42,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:28:42,170 INFO L87 Difference]: Start difference. First operand 61 states and 74 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 16:28:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:42,257 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-10-15 16:28:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:28:42,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 10 [2022-10-15 16:28:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:42,258 INFO L225 Difference]: With dead ends: 44 [2022-10-15 16:28:42,259 INFO L226 Difference]: Without dead ends: 44 [2022-10-15 16:28:42,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:28:42,261 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:42,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 57 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:28:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-15 16:28:42,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2022-10-15 16:28:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 41 states have internal predecessors, (47), 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 16:28:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-15 16:28:42,268 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 10 [2022-10-15 16:28:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:42,268 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-15 16:28:42,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 16:28:42,268 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-15 16:28:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 16:28:42,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:42,269 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2022-10-15 16:28:42,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 16:28:42,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:42,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:42,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:42,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1194856395, now seen corresponding path program 2 times [2022-10-15 16:28:42,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900102588] [2022-10-15 16:28:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:42,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:42,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:42,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900102588] [2022-10-15 16:28:42,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900102588] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:28:42,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712823526] [2022-10-15 16:28:42,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 16:28:42,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:42,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:28:42,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 16:28:42,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 16:28:42,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:28:42,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 16:28:42,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:28:42,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-15 16:28:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:42,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:28:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:43,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712823526] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:28:43,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:28:43,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 16:28:43,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968610775] [2022-10-15 16:28:43,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:28:43,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 16:28:43,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 16:28:43,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-10-15 16:28:43,145 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 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 16:28:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:43,408 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2022-10-15 16:28:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 16:28:43,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 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 13 [2022-10-15 16:28:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:43,410 INFO L225 Difference]: With dead ends: 73 [2022-10-15 16:28:43,411 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 16:28:43,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-10-15 16:28:43,412 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 156 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:43,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 85 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:28:43,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 16:28:43,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 39. [2022-10-15 16:28:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 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 16:28:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-10-15 16:28:43,419 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2022-10-15 16:28:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:43,419 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-10-15 16:28:43,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 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 16:28:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-10-15 16:28:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 16:28:43,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:43,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 16:28:43,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 16:28:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:43,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:43,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1614158958, now seen corresponding path program 2 times [2022-10-15 16:28:43,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:43,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022026468] [2022-10-15 16:28:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:43,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:43,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:43,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022026468] [2022-10-15 16:28:43,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022026468] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:28:43,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924268244] [2022-10-15 16:28:43,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 16:28:43,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:44,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:28:44,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 16:28:44,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 16:28:44,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:28:44,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 16:28:44,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:28:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:44,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:28:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:44,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924268244] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:28:44,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:28:44,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-10-15 16:28:44,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889049506] [2022-10-15 16:28:44,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:28:44,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 16:28:44,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 16:28:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-10-15 16:28:44,290 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 16:28:44,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:44,512 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2022-10-15 16:28:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 16:28:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 14 [2022-10-15 16:28:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:44,514 INFO L225 Difference]: With dead ends: 85 [2022-10-15 16:28:44,514 INFO L226 Difference]: Without dead ends: 85 [2022-10-15 16:28:44,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2022-10-15 16:28:44,516 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 199 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:44,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 91 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:28:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-15 16:28:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2022-10-15 16:28:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 68 states have internal predecessors, (83), 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 16:28:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2022-10-15 16:28:44,524 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 14 [2022-10-15 16:28:44,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:44,524 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2022-10-15 16:28:44,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 16:28:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2022-10-15 16:28:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:28:44,525 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:44,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:28:44,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 16:28:44,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:44,742 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash -955935651, now seen corresponding path program 1 times [2022-10-15 16:28:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:44,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290048787] [2022-10-15 16:28:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:44,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 16:28:44,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:44,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290048787] [2022-10-15 16:28:44,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290048787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:28:44,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891015216] [2022-10-15 16:28:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:44,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:44,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:44,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:28:44,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 16:28:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:44,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 16:28:44,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:28:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:44,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:28:45,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-10-15 16:28:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:28:45,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891015216] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:28:45,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:28:45,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 16:28:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691724818] [2022-10-15 16:28:45,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:28:45,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 16:28:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:45,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 16:28:45,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-10-15 16:28:45,112 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 13 states have internal predecessors, (46), 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 16:28:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:45,322 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2022-10-15 16:28:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 16:28:45,322 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 13 states have internal predecessors, (46), 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 17 [2022-10-15 16:28:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:45,324 INFO L225 Difference]: With dead ends: 99 [2022-10-15 16:28:45,324 INFO L226 Difference]: Without dead ends: 99 [2022-10-15 16:28:45,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-10-15 16:28:45,325 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 210 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:45,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 98 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:28:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-15 16:28:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 75. [2022-10-15 16:28:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 74 states have internal predecessors, (88), 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 16:28:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2022-10-15 16:28:45,335 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 17 [2022-10-15 16:28:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:45,335 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2022-10-15 16:28:45,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 13 states have internal predecessors, (46), 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 16:28:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2022-10-15 16:28:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 16:28:45,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:45,338 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-15 16:28:45,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 16:28:45,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:28:45,553 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:28:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1819264303, now seen corresponding path program 3 times [2022-10-15 16:28:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:45,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491827756] [2022-10-15 16:28:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:28:45,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:28:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:28:45,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:28:45,603 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:28:45,604 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (13 of 14 remaining) [2022-10-15 16:28:45,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-10-15 16:28:45,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-10-15 16:28:45,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-10-15 16:28:45,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-10-15 16:28:45,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-10-15 16:28:45,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-10-15 16:28:45,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-10-15 16:28:45,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-10-15 16:28:45,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-10-15 16:28:45,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2022-10-15 16:28:45,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2022-10-15 16:28:45,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2022-10-15 16:28:45,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-10-15 16:28:45,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 16:28:45,613 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-10-15 16:28:45,617 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:28:45,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:28:45 BoogieIcfgContainer [2022-10-15 16:28:45,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:28:45,645 INFO L158 Benchmark]: Toolchain (without parser) took 6681.49ms. Allocated memory was 151.0MB in the beginning and 198.2MB in the end (delta: 47.2MB). Free memory was 126.4MB in the beginning and 147.9MB in the end (delta: -21.5MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2022-10-15 16:28:45,645 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:28:45,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.40ms. Allocated memory is still 151.0MB. Free memory was 126.2MB in the beginning and 115.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:28:45,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.58ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:28:45,646 INFO L158 Benchmark]: Boogie Preprocessor took 31.02ms. Allocated memory is still 151.0MB. Free memory was 114.2MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:28:45,647 INFO L158 Benchmark]: RCFGBuilder took 524.12ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 99.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-15 16:28:45,647 INFO L158 Benchmark]: TraceAbstraction took 5815.67ms. Allocated memory was 151.0MB in the beginning and 198.2MB in the end (delta: 47.2MB). Free memory was 98.4MB in the beginning and 147.9MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:28:45,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.40ms. Allocated memory is still 151.0MB. Free memory was 126.2MB in the beginning and 115.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.58ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.02ms. Allocated memory is still 151.0MB. Free memory was 114.2MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 524.12ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 99.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5815.67ms. Allocated memory was 151.0MB in the beginning and 198.2MB in the end (delta: 47.2MB). Free memory was 98.4MB in the beginning and 147.9MB in the end (delta: -49.5MB). 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: 16]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 16. Possible FailurePath: [L12] int SIZE; [L14] const int MAX = 100000; VAL [MAX=100000, SIZE=0] [L18] SIZE = __VERIFIER_nondet_int() [L19] COND TRUE SIZE > 1 && SIZE < MAX [L21] int i; [L22] int *a = malloc(sizeof(int)*SIZE); [L24] i = 0 VAL [a={-1:0}, i=0, MAX=100000, SIZE=3] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2, a={-1:0}, i=0, MAX=100000, SIZE=3] [L24] i++ VAL [a={-1:0}, i=1, MAX=100000, SIZE=3] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-3, a={-1:0}, i=1, MAX=100000, SIZE=3] [L24] i++ VAL [a={-1:0}, i=2, MAX=100000, SIZE=3] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-4, a={-1:0}, i=2, MAX=100000, SIZE=3] [L24] i++ VAL [a={-1:0}, i=3, MAX=100000, SIZE=3] [L24] COND FALSE !(i < SIZE) VAL [a={-1:0}, i=3, MAX=100000, SIZE=3] [L29] COND TRUE SIZE % 2 != 0 [L29] return 1; VAL [\result=1, a={-1:0}, i=3, MAX=100000, SIZE=3] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 8]: 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, 44 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 674 mSDsluCounter, 584 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1008 IncrementalHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 261 mSDtfsCounter, 1008 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 96 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 1831 SizeOfPredicates, 12 NumberOfNonLiveVariables, 382 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 16/69 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 16:28:45,698 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...