/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-fpi/modn.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:19:18,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:19:18,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:19:18,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:19:18,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:19:18,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:19:18,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:19:18,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:19:18,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:19:18,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:19:18,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:19:18,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:19:18,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:19:18,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:19:18,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:19:18,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:19:18,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:19:18,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:19:18,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:19:18,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:19:18,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:19:18,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:19:18,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:19:18,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:19:18,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:19:18,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:19:18,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:19:18,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:19:18,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:19:18,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:19:18,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:19:18,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:19:18,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:19:18,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:19:18,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:19:18,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:19:18,850 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 16:19:18,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:19:18,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:19:18,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:19:18,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:19:18,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:19:18,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:19:18,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:19:18,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:19:18,880 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:19:18,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:19:18,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:19:18,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:19:18,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:19:18,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:19:18,882 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:19:18,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:19:18,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:19:18,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:19:18,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:19:18,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:19:18,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:19:18,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:19:18,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:19:18,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:19:18,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:19:18,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:19:19,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:19:19,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:19:19,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:19:19,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:19:19,307 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:19:19,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modn.c [2022-10-15 16:19:19,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/967e24b7f/7db8a745c3664295b3579e1b60272b97/FLAGec79ef7ad [2022-10-15 16:19:19,946 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:19:19,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modn.c [2022-10-15 16:19:19,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/967e24b7f/7db8a745c3664295b3579e1b60272b97/FLAGec79ef7ad [2022-10-15 16:19:20,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/967e24b7f/7db8a745c3664295b3579e1b60272b97 [2022-10-15 16:19:20,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:19:20,306 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:19:20,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:19:20,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:19:20,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:19:20,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df901bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20, skipping insertion in model container [2022-10-15 16:19:20,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:19:20,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:19:20,570 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-fpi/modn.c[587,600] [2022-10-15 16:19:20,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:19:20,602 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:19:20,619 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-fpi/modn.c[587,600] [2022-10-15 16:19:20,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:19:20,643 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:19:20,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20 WrapperNode [2022-10-15 16:19:20,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:19:20,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:19:20,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:19:20,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:19:20,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,686 INFO L138 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2022-10-15 16:19:20,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:19:20,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:19:20,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:19:20,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:19:20,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:19:20,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:19:20,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:19:20,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:19:20,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (1/1) ... [2022-10-15 16:19:20,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:19:20,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:20,756 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 16:19:20,780 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 16:19:20,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:19:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:19:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:19:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:19:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 16:19:20,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:19:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:19:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:19:20,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:19:20,901 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:19:20,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:19:21,246 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:19:21,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:19:21,254 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 16:19:21,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:19:21 BoogieIcfgContainer [2022-10-15 16:19:21,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:19:21,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:19:21,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:19:21,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:19:21,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:19:20" (1/3) ... [2022-10-15 16:19:21,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c43555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:19:21, skipping insertion in model container [2022-10-15 16:19:21,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:20" (2/3) ... [2022-10-15 16:19:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c43555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:19:21, skipping insertion in model container [2022-10-15 16:19:21,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:19:21" (3/3) ... [2022-10-15 16:19:21,276 INFO L112 eAbstractionObserver]: Analyzing ICFG modn.c [2022-10-15 16:19:21,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:19:21,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-15 16:19:21,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:19:21,463 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;@fe6f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:19:21,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-15 16:19:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.793103448275862) internal successors, (52), 43 states have internal predecessors, (52), 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 16:19:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:19:21,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:21,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:19:21,503 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 16:19:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:21,511 INFO L85 PathProgramCache]: Analyzing trace with hash 925688, now seen corresponding path program 1 times [2022-10-15 16:19:21,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:21,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521041360] [2022-10-15 16:19:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:21,711 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 16:19:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:21,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521041360] [2022-10-15 16:19:21,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521041360] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:21,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:21,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:21,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569974304] [2022-10-15 16:19:21,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:21,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:21,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:21,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:21,758 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.793103448275862) internal successors, (52), 43 states have internal predecessors, (52), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:19:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:21,823 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-10-15 16:19:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-15 16:19:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:21,836 INFO L225 Difference]: With dead ends: 45 [2022-10-15 16:19:21,836 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 16:19:21,839 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 16:19:21,843 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:21,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 70 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 16:19:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 16:19:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 41 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 16:19:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-15 16:19:21,885 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 4 [2022-10-15 16:19:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:21,886 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-15 16:19:21,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 16:19:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-15 16:19:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 16:19:21,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:21,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 16:19:21,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:19:21,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash 889571242, now seen corresponding path program 1 times [2022-10-15 16:19:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:21,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438872524] [2022-10-15 16:19:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:22,083 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 16:19:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:22,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438872524] [2022-10-15 16:19:22,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438872524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:22,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:22,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:22,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286025655] [2022-10-15 16:19:22,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:22,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:22,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:22,093 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:19:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:22,150 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-15 16:19:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-10-15 16:19:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:22,151 INFO L225 Difference]: With dead ends: 38 [2022-10-15 16:19:22,152 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 16:19:22,152 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 16:19:22,154 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 33 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:22,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 29 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 16:19:22,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-15 16:19:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 37 states have internal predecessors, (40), 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 16:19:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-15 16:19:22,162 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 6 [2022-10-15 16:19:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:22,162 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-15 16:19:22,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:19:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-15 16:19:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 16:19:22,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:22,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 16:19:22,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:19:22,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:22,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash 889571243, now seen corresponding path program 1 times [2022-10-15 16:19:22,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:22,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574016465] [2022-10-15 16:19:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:22,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:22,365 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 16:19:22,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:22,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574016465] [2022-10-15 16:19:22,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574016465] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:22,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:22,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260841343] [2022-10-15 16:19:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:22,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:22,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:22,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:22,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:22,369 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:19:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:22,396 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-15 16:19:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:22,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-10-15 16:19:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:22,398 INFO L225 Difference]: With dead ends: 34 [2022-10-15 16:19:22,398 INFO L226 Difference]: Without dead ends: 34 [2022-10-15 16:19:22,399 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 16:19:22,400 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:22,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-15 16:19:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-15 16:19:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 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 16:19:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-10-15 16:19:22,407 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 6 [2022-10-15 16:19:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:22,407 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-10-15 16:19:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:19:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-10-15 16:19:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 16:19:22,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:22,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:22,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:19:22,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1586658021, now seen corresponding path program 1 times [2022-10-15 16:19:22,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:22,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54138283] [2022-10-15 16:19:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:22,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:22,489 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 16:19:22,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:22,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54138283] [2022-10-15 16:19:22,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54138283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:22,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:22,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 16:19:22,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47383860] [2022-10-15 16:19:22,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:22,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:19:22,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:19:22,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:19:22,493 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:19:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:22,552 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2022-10-15 16:19:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 16:19:22,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 16:19:22,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:22,557 INFO L225 Difference]: With dead ends: 56 [2022-10-15 16:19:22,557 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 16:19:22,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 16:19:22,562 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 68 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:22,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 38 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:22,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 16:19:22,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2022-10-15 16:19:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 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 16:19:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-10-15 16:19:22,574 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 12 [2022-10-15 16:19:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:22,575 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-10-15 16:19:22,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:19:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-10-15 16:19:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:19:22,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:22,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:22,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:19:22,577 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:22,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash 933163214, now seen corresponding path program 1 times [2022-10-15 16:19:22,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:22,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050023675] [2022-10-15 16:19:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:22,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 16:19:22,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:22,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050023675] [2022-10-15 16:19:22,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050023675] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:22,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:22,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144835127] [2022-10-15 16:19:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:22,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:22,704 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 16:19:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:22,727 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-15 16:19:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:22,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 16:19:22,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:22,728 INFO L225 Difference]: With dead ends: 35 [2022-10-15 16:19:22,729 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 16:19:22,729 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 16:19:22,731 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:22,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 27 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 16:19:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-15 16:19:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 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 16:19:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-10-15 16:19:22,737 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 17 [2022-10-15 16:19:22,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:22,737 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-10-15 16:19:22,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 16:19:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-10-15 16:19:22,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 16:19:22,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:22,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:22,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:19:22,739 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash 933163215, now seen corresponding path program 1 times [2022-10-15 16:19:22,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:22,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911325377] [2022-10-15 16:19:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 16:19:22,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:22,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911325377] [2022-10-15 16:19:22,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911325377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:22,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:22,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 16:19:22,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252806183] [2022-10-15 16:19:22,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:22,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 16:19:22,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 16:19:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:19:22,931 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 16:19:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:23,015 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2022-10-15 16:19:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 16:19:23,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 16:19:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:23,017 INFO L225 Difference]: With dead ends: 50 [2022-10-15 16:19:23,017 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 16:19:23,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:19:23,019 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 90 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:23,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 27 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:19:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 16:19:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2022-10-15 16:19:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 37 states have internal predecessors, (40), 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 16:19:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-15 16:19:23,025 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 17 [2022-10-15 16:19:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:23,026 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-15 16:19:23,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 16:19:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-15 16:19:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 16:19:23,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:23,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:23,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:19:23,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:23,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:23,029 INFO L85 PathProgramCache]: Analyzing trace with hash -954488891, now seen corresponding path program 1 times [2022-10-15 16:19:23,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:23,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702955889] [2022-10-15 16:19:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:23,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:23,054 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 16:19:23,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057232905] [2022-10-15 16:19:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:23,062 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 16:19:23,078 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 16:19:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:23,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 16:19:23,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:19:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:23,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:19:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:23,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:23,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702955889] [2022-10-15 16:19:23,389 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 16:19:23,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057232905] [2022-10-15 16:19:23,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057232905] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:19:23,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 16:19:23,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-10-15 16:19:23,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503824566] [2022-10-15 16:19:23,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 16:19:23,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 16:19:23,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 16:19:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-15 16:19:23,392 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 16:19:23,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:23,521 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2022-10-15 16:19:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 16:19:23,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 22 [2022-10-15 16:19:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:23,523 INFO L225 Difference]: With dead ends: 94 [2022-10-15 16:19:23,523 INFO L226 Difference]: Without dead ends: 94 [2022-10-15 16:19:23,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-10-15 16:19:23,525 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:23,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 98 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:19:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-15 16:19:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 61. [2022-10-15 16:19:23,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 60 states have internal predecessors, (66), 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 16:19:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2022-10-15 16:19:23,534 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 22 [2022-10-15 16:19:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:23,534 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2022-10-15 16:19:23,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 16:19:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2022-10-15 16:19:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 16:19:23,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:23,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:23,575 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 16:19:23,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:23,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1452686325, now seen corresponding path program 1 times [2022-10-15 16:19:23,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:23,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561887356] [2022-10-15 16:19:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:23,772 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 16:19:23,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816317567] [2022-10-15 16:19:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:23,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:23,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:23,775 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 16:19:23,791 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 16:19:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:23,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-15 16:19:23,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:19:23,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-10-15 16:19:24,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 16 [2022-10-15 16:19:24,326 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-10-15 16:19:24,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2022-10-15 16:19:24,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 9 [2022-10-15 16:19:24,788 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 16:19:24,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:19:26,122 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (mod |c_ULTIMATE.start_main_#t~mem9#1| c_~N~0))) (let ((.cse1 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (= 0 .cse2)) (.cse6 (< |c_ULTIMATE.start_main_#t~mem9#1| 0))) (let ((.cse3 (not .cse6)) (.cse5 (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse1 .cse2) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (and .cse6 (not .cse4)))) (.cse0 (< c_~N~0 0))) (and (or (not .cse0) (and (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse1 (+ c_~N~0 .cse2)) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) .cse3 .cse4) .cse5)) (or (and (or .cse3 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse1 (+ .cse2 (* (- 1) c_~N~0))) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) .cse4) .cse5) .cse0))))) is different from false [2022-10-15 16:19:28,271 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (< c_~N~0 0)) (.cse0 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int) (|v_ULTIMATE.start_main_#t~mem9#1_9| Int)) (or (not (<= .cse1 |v_ULTIMATE.start_main_#t~mem9#1_9|)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse2 (mod |v_ULTIMATE.start_main_#t~mem9#1_9| c_~N~0)) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |v_ULTIMATE.start_main_#t~mem9#1_9| 0)))) (.cse4 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int) (|v_ULTIMATE.start_main_#t~mem9#1_9| Int)) (let ((.cse7 (mod |v_ULTIMATE.start_main_#t~mem9#1_9| c_~N~0))) (or (not (<= .cse1 |v_ULTIMATE.start_main_#t~mem9#1_9|)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse2 .cse7) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (not (= .cse7 0))))))) (and (or (and .cse0 (forall ((|v_ULTIMATE.start_main_#t~mem9#1_9| Int)) (let ((.cse3 (mod |v_ULTIMATE.start_main_#t~mem9#1_9| c_~N~0))) (or (not (<= .cse1 |v_ULTIMATE.start_main_#t~mem9#1_9|)) (not (< |v_ULTIMATE.start_main_#t~mem9#1_9| 0)) (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse2 (+ .cse3 (* (- 1) c_~N~0))) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse3 0)))) .cse4) .cse5) (or (not .cse5) (and .cse0 (forall ((|v_ULTIMATE.start_main_#t~mem9#1_9| Int)) (let ((.cse6 (mod |v_ULTIMATE.start_main_#t~mem9#1_9| c_~N~0))) (or (not (<= .cse1 |v_ULTIMATE.start_main_#t~mem9#1_9|)) (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse2 (+ .cse6 c_~N~0)) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (< |v_ULTIMATE.start_main_#t~mem9#1_9| 0)) (= .cse6 0)))) .cse4))))) is different from false [2022-10-15 16:19:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-10-15 16:19:34,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:34,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561887356] [2022-10-15 16:19:34,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 16:19:34,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816317567] [2022-10-15 16:19:34,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816317567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:19:34,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 16:19:34,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 28 [2022-10-15 16:19:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838896194] [2022-10-15 16:19:34,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 16:19:34,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 16:19:34,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:34,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 16:19:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=512, Unknown=3, NotChecked=98, Total=756 [2022-10-15 16:19:34,796 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 28 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 28 states have internal predecessors, (48), 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 16:19:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:37,306 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2022-10-15 16:19:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 16:19:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 28 states have internal predecessors, (48), 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 26 [2022-10-15 16:19:37,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:37,308 INFO L225 Difference]: With dead ends: 74 [2022-10-15 16:19:37,308 INFO L226 Difference]: Without dead ends: 74 [2022-10-15 16:19:37,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=182, Invalid=635, Unknown=3, NotChecked=110, Total=930 [2022-10-15 16:19:37,311 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 39 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:37,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 160 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 158 Unchecked, 0.1s Time] [2022-10-15 16:19:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-15 16:19:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2022-10-15 16:19:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 65 states have internal predecessors, (71), 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 16:19:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2022-10-15 16:19:37,319 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 26 [2022-10-15 16:19:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:37,319 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2022-10-15 16:19:37,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 28 states have internal predecessors, (48), 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 16:19:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2022-10-15 16:19:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 16:19:37,321 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:37,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:37,413 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 16:19:37,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-15 16:19:37,524 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:37,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash -961785928, now seen corresponding path program 2 times [2022-10-15 16:19:37,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:37,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173677668] [2022-10-15 16:19:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:37,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:37,543 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 16:19:37,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624020980] [2022-10-15 16:19:37,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 16:19:37,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:37,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:37,553 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 16:19:37,573 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 16:19:37,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 16:19:37,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:19:37,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 16:19:37,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:19:37,645 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-15 16:19:37,646 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-10-15 16:19:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 16:19:37,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:19:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 16:19:38,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173677668] [2022-10-15 16:19:38,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 16:19:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624020980] [2022-10-15 16:19:38,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624020980] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:19:38,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 16:19:38,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-15 16:19:38,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044413365] [2022-10-15 16:19:38,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 16:19:38,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 16:19:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:38,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 16:19:38,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 16:19:38,068 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 16:19:38,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:38,247 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2022-10-15 16:19:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 16:19:38,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 27 [2022-10-15 16:19:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:38,249 INFO L225 Difference]: With dead ends: 70 [2022-10-15 16:19:38,249 INFO L226 Difference]: Without dead ends: 70 [2022-10-15 16:19:38,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-10-15 16:19:38,250 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:38,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 50 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:19:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-15 16:19:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2022-10-15 16:19:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 62 states have internal predecessors, (68), 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 16:19:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2022-10-15 16:19:38,291 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 27 [2022-10-15 16:19:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:38,293 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2022-10-15 16:19:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 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 16:19:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2022-10-15 16:19:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 16:19:38,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:38,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:38,332 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 16:19:38,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:38,497 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1602705125, now seen corresponding path program 1 times [2022-10-15 16:19:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:38,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563985654] [2022-10-15 16:19:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:38,513 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 16:19:38,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559335598] [2022-10-15 16:19:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:38,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:38,515 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 16:19:38,520 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 16:19:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:19:38,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:19:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:19:38,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:19:38,621 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:19:38,623 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (13 of 14 remaining) [2022-10-15 16:19:38,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-10-15 16:19:38,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-10-15 16:19:38,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-10-15 16:19:38,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-10-15 16:19:38,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-10-15 16:19:38,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-10-15 16:19:38,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-10-15 16:19:38,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-10-15 16:19:38,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-10-15 16:19:38,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2022-10-15 16:19:38,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2022-10-15 16:19:38,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2022-10-15 16:19:38,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-10-15 16:19:38,676 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 16:19:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:38,846 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:38,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:19:38,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:19:38 BoogieIcfgContainer [2022-10-15 16:19:38,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:19:38,890 INFO L158 Benchmark]: Toolchain (without parser) took 18588.37ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 126.5MB in the beginning and 158.1MB in the end (delta: -31.6MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-10-15 16:19:38,890 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:19:38,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.90ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 116.2MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 16:19:38,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 114.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:19:38,891 INFO L158 Benchmark]: Boogie Preprocessor took 30.83ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:19:38,891 INFO L158 Benchmark]: RCFGBuilder took 537.19ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 99.8MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-15 16:19:38,892 INFO L158 Benchmark]: TraceAbstraction took 17627.47ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 99.2MB in the beginning and 158.1MB in the end (delta: -58.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:19:38,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.90ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 116.2MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 114.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.83ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 537.19ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 99.8MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 17627.47ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 99.2MB in the beginning and 158.1MB in the end (delta: -58.8MB). 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: 21]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 21. Possible FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 VAL [a={-1:0}, N=1, sum={4:0}] [L32] i=0 VAL [a={-1:0}, i=0, N=1, sum={4:0}] [L32] COND TRUE i