/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/indp1f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 00:04:39,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 00:04:39,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 00:04:39,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 00:04:39,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 00:04:39,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 00:04:39,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 00:04:39,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 00:04:39,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 00:04:39,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 00:04:39,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 00:04:39,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 00:04:39,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 00:04:39,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 00:04:39,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 00:04:39,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 00:04:39,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 00:04:39,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 00:04:39,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 00:04:39,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 00:04:39,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 00:04:39,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 00:04:39,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 00:04:39,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 00:04:39,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 00:04:39,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 00:04:39,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 00:04:39,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 00:04:39,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 00:04:39,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 00:04:39,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 00:04:39,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 00:04:39,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 00:04:39,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 00:04:39,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 00:04:39,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 00:04:39,415 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 [2022-10-16 00:04:39,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 00:04:39,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 00:04:39,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 00:04:39,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 00:04:39,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 00:04:39,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 00:04:39,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 00:04:39,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 00:04:39,485 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 00:04:39,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 00:04:39,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 00:04:39,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 00:04:39,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 00:04:39,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 00:04:39,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 00:04:39,487 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 00:04:39,488 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 00:04:39,488 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 00:04:39,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 00:04:39,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 00:04:39,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 00:04:39,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 00:04:39,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 00:04:39,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 00:04:39,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 00:04:39,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 00:04:39,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 00:04:39,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 00:04:39,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 00:04:39,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 00:04:39,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 00:04:39,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 00:04:39,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 00:04:39,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 00:04:39,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 00:04:39,997 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 00:04:39,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp1f.c [2022-10-16 00:04:40,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6086aa131/a794f0aa3fb1417a8bd419c66f133c9a/FLAG8241ecc20 [2022-10-16 00:04:40,713 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 00:04:40,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp1f.c [2022-10-16 00:04:40,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6086aa131/a794f0aa3fb1417a8bd419c66f133c9a/FLAG8241ecc20 [2022-10-16 00:04:40,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6086aa131/a794f0aa3fb1417a8bd419c66f133c9a [2022-10-16 00:04:40,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 00:04:40,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 00:04:40,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 00:04:40,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 00:04:40,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 00:04:40,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:40" (1/1) ... [2022-10-16 00:04:40,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a244c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40, skipping insertion in model container [2022-10-16 00:04:40,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:40" (1/1) ... [2022-10-16 00:04:40,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 00:04:40,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 00:04:40,966 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/indp1f.c[589,602] [2022-10-16 00:04:40,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 00:04:41,007 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 00:04:41,027 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/indp1f.c[589,602] [2022-10-16 00:04:41,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 00:04:41,052 INFO L208 MainTranslator]: Completed translation [2022-10-16 00:04:41,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41 WrapperNode [2022-10-16 00:04:41,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 00:04:41,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 00:04:41,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 00:04:41,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 00:04:41,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,094 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-10-16 00:04:41,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 00:04:41,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 00:04:41,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 00:04:41,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 00:04:41,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 00:04:41,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 00:04:41,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 00:04:41,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 00:04:41,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (1/1) ... [2022-10-16 00:04:41,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 00:04:41,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 00:04:41,165 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) [2022-10-16 00:04:41,179 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 [2022-10-16 00:04:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 00:04:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 00:04:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 00:04:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 00:04:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 00:04:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 00:04:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 00:04:41,357 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 00:04:41,360 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 00:04:41,776 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 00:04:41,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 00:04:41,795 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 00:04:41,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:41 BoogieIcfgContainer [2022-10-16 00:04:41,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 00:04:41,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 00:04:41,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 00:04:41,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 00:04:41,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:04:40" (1/3) ... [2022-10-16 00:04:41,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6c1bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:41, skipping insertion in model container [2022-10-16 00:04:41,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:41" (2/3) ... [2022-10-16 00:04:41,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6c1bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:41, skipping insertion in model container [2022-10-16 00:04:41,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:41" (3/3) ... [2022-10-16 00:04:41,814 INFO L112 eAbstractionObserver]: Analyzing ICFG indp1f.c [2022-10-16 00:04:41,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 00:04:41,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 00:04:41,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 00:04:41,922 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;@36f6ba06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 00:04:41,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 00:04:41,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 45 states have internal predecessors, (56), 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) [2022-10-16 00:04:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 00:04:41,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:41,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 00:04:41,936 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)] === [2022-10-16 00:04:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2022-10-16 00:04:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:41,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258865380] [2022-10-16 00:04:41,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:41,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 00:04:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 00:04:42,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 00:04:42,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258865380] [2022-10-16 00:04:42,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258865380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 00:04:42,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 00:04:42,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 00:04:42,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352622875] [2022-10-16 00:04:42,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 00:04:42,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 00:04:42,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 00:04:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 00:04:42,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 00:04:42,168 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 45 states have internal predecessors, (56), 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) [2022-10-16 00:04:42,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 00:04:42,220 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-10-16 00:04:42,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 00:04:42,222 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 [2022-10-16 00:04:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 00:04:42,231 INFO L225 Difference]: With dead ends: 47 [2022-10-16 00:04:42,231 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 00:04:42,233 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 [2022-10-16 00:04:42,238 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 4 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 00:04:42,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 00:04:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 00:04:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 00:04:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 00:04:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2022-10-16 00:04:42,278 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 4 [2022-10-16 00:04:42,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 00:04:42,279 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2022-10-16 00:04:42,279 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) [2022-10-16 00:04:42,279 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2022-10-16 00:04:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 00:04:42,280 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:42,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 00:04:42,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 00:04:42,281 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)] === [2022-10-16 00:04:42,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904936, now seen corresponding path program 1 times [2022-10-16 00:04:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:42,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846237943] [2022-10-16 00:04:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:42,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 00:04:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 00:04:42,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 00:04:42,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846237943] [2022-10-16 00:04:42,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846237943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 00:04:42,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 00:04:42,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 00:04:42,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472554365] [2022-10-16 00:04:42,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 00:04:42,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 00:04:42,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 00:04:42,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 00:04:42,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 00:04:42,442 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-16 00:04:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 00:04:42,493 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-10-16 00:04:42,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 00:04:42,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-16 00:04:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 00:04:42,495 INFO L225 Difference]: With dead ends: 38 [2022-10-16 00:04:42,495 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 00:04:42,496 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 [2022-10-16 00:04:42,498 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 00:04:42,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 00:04:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 00:04:42,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 00:04:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 37 states have internal predecessors, (41), 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) [2022-10-16 00:04:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-10-16 00:04:42,506 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 7 [2022-10-16 00:04:42,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 00:04:42,506 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-10-16 00:04:42,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-16 00:04:42,507 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-10-16 00:04:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 00:04:42,507 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:42,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 00:04:42,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 00:04:42,508 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)] === [2022-10-16 00:04:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904937, now seen corresponding path program 1 times [2022-10-16 00:04:42,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:42,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294829698] [2022-10-16 00:04:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:42,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 00:04:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 00:04:42,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 00:04:42,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294829698] [2022-10-16 00:04:42,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294829698] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 00:04:42,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 00:04:42,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 00:04:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713699033] [2022-10-16 00:04:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 00:04:42,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 00:04:42,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 00:04:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 00:04:42,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 00:04:42,771 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-16 00:04:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 00:04:42,897 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-10-16 00:04:42,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 00:04:42,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-10-16 00:04:42,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 00:04:42,898 INFO L225 Difference]: With dead ends: 41 [2022-10-16 00:04:42,899 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 00:04:42,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 00:04:42,901 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 00:04:42,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 49 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 00:04:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 00:04:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-10-16 00:04:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.34375) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 00:04:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-10-16 00:04:42,909 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 7 [2022-10-16 00:04:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 00:04:42,910 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-10-16 00:04:42,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-16 00:04:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-10-16 00:04:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 00:04:42,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:42,911 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 00:04:42,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 00:04:42,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-16 00:04:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash 679824471, now seen corresponding path program 1 times [2022-10-16 00:04:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487932660] [2022-10-16 00:04:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:42,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:42,935 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 00:04:42,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703082876] [2022-10-16 00:04:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:42,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:42,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 00:04:42,942 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) [2022-10-16 00:04:42,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 00:04:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 00:04:43,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 00:04:43,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 00:04:43,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 00:04:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 00:04:43,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 00:04:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 00:04:43,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 00:04:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487932660] [2022-10-16 00:04:43,566 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 00:04:43,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703082876] [2022-10-16 00:04:43,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703082876] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 00:04:43,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 00:04:43,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 00:04:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449448222] [2022-10-16 00:04:43,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 00:04:43,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 00:04:43,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 00:04:43,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 00:04:43,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 00:04:43,578 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 00:04:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 00:04:43,894 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2022-10-16 00:04:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 00:04:43,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 00:04:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 00:04:43,896 INFO L225 Difference]: With dead ends: 58 [2022-10-16 00:04:43,896 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 00:04:43,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-16 00:04:43,898 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 112 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 00:04:43,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 50 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 00:04:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 00:04:43,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 33. [2022-10-16 00:04:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 32 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) [2022-10-16 00:04:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-10-16 00:04:43,905 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 10 [2022-10-16 00:04:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 00:04:43,906 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-10-16 00:04:43,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 00:04:43,906 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-10-16 00:04:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 00:04:43,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:43,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 00:04:43,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 00:04:44,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:44,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-16 00:04:44,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:44,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1765283020, now seen corresponding path program 1 times [2022-10-16 00:04:44,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:44,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728434735] [2022-10-16 00:04:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:44,138 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 00:04:44,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054897686] [2022-10-16 00:04:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:44,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 00:04:44,140 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) [2022-10-16 00:04:44,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 00:04:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 00:04:44,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 00:04:44,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 00:04:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 00:04:44,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 00:04:44,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 00:04:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728434735] [2022-10-16 00:04:44,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 00:04:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054897686] [2022-10-16 00:04:44,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054897686] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 00:04:44,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 00:04:44,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 00:04:44,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650145244] [2022-10-16 00:04:44,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 00:04:44,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 00:04:44,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 00:04:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 00:04:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 00:04:44,257 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-10-16 00:04:44,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 00:04:44,321 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-10-16 00:04:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 00:04:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2022-10-16 00:04:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 00:04:44,323 INFO L225 Difference]: With dead ends: 53 [2022-10-16 00:04:44,323 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 00:04:44,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 00:04:44,325 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 00:04:44,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 24 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 00:04:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 00:04:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2022-10-16 00:04:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 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) [2022-10-16 00:04:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-10-16 00:04:44,331 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 17 [2022-10-16 00:04:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 00:04:44,332 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-10-16 00:04:44,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-10-16 00:04:44,332 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-10-16 00:04:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 00:04:44,333 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 00:04:44,333 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] [2022-10-16 00:04:44,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 00:04:44,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:44,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-16 00:04:44,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 00:04:44,550 INFO L85 PathProgramCache]: Analyzing trace with hash 106227490, now seen corresponding path program 1 times [2022-10-16 00:04:44,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 00:04:44,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637072251] [2022-10-16 00:04:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:44,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 00:04:44,567 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 00:04:44,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095268443] [2022-10-16 00:04:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 00:04:44,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 00:04:44,569 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) [2022-10-16 00:04:44,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 00:04:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 00:04:44,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 00:04:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 00:04:44,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 00:04:44,692 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 00:04:44,693 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (13 of 14 remaining) [2022-10-16 00:04:44,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-10-16 00:04:44,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-10-16 00:04:44,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-10-16 00:04:44,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-10-16 00:04:44,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-10-16 00:04:44,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-10-16 00:04:44,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-10-16 00:04:44,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-10-16 00:04:44,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-10-16 00:04:44,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2022-10-16 00:04:44,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2022-10-16 00:04:44,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2022-10-16 00:04:44,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-10-16 00:04:44,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 00:04:44,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 00:04:44,917 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-16 00:04:44,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 00:04:44,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:04:44 BoogieIcfgContainer [2022-10-16 00:04:44,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 00:04:44,959 INFO L158 Benchmark]: Toolchain (without parser) took 4197.01ms. Allocated memory is still 151.0MB. Free memory was 124.3MB in the beginning and 98.4MB in the end (delta: 25.9MB). Peak memory consumption was 27.5MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,960 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 00:04:44,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.17ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 113.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.46ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 112.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,961 INFO L158 Benchmark]: Boogie Preprocessor took 29.35ms. Allocated memory is still 151.0MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,961 INFO L158 Benchmark]: RCFGBuilder took 675.58ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 130.9MB in the end (delta: -20.2MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,962 INFO L158 Benchmark]: TraceAbstraction took 3154.18ms. Allocated memory is still 151.0MB. Free memory was 130.4MB in the beginning and 98.4MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-10-16 00:04:44,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 282.17ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 113.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.46ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 112.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.35ms. Allocated memory is still 151.0MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 675.58ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 130.9MB in the end (delta: -20.2MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3154.18ms. Allocated memory is still 151.0MB. Free memory was 130.4MB in the beginning and 98.4MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. 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: 15]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 15. 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] long long *a = malloc(sizeof(long long)*N); [L30] i=0 VAL [a={-1:0}, i=0, N=1] [L30] COND TRUE i