/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:21:13,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:21:13,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:21:13,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:21:13,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:21:13,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:21:13,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:21:13,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:21:13,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:21:13,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:21:13,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:21:13,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:21:13,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:21:13,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:21:13,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:21:13,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:21:13,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:21:13,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:21:13,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:21:13,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:21:13,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:21:13,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:21:13,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:21:13,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:21:13,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:21:13,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:21:13,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:21:13,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:21:13,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:21:13,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:21:13,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:21:13,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:21:13,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:21:13,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:21:13,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:21:13,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:21:13,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:21:13,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:21:13,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:21:13,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:21:13,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:21:13,649 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:21:13,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:21:13,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:21:13,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:21:13,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:21:13,650 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:21:13,650 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:21:13,650 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:21:13,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:21:13,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:21:13,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:21:13,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:21:13,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:21:13,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:21:13,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:21:13,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:21:13,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:21:13,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:21:13,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:21:13,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:21:13,653 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:21:14,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:21:14,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:21:14,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:21:14,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:21:14,081 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:21:14,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-01-07 05:21:14,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6eb1ad855/e2b03d34d11846c2969df244a74df28a/FLAGdc1d12fbb [2021-01-07 05:21:14,667 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:21:14,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-01-07 05:21:14,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6eb1ad855/e2b03d34d11846c2969df244a74df28a/FLAGdc1d12fbb [2021-01-07 05:21:15,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6eb1ad855/e2b03d34d11846c2969df244a74df28a [2021-01-07 05:21:15,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:21:15,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:21:15,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:21:15,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:21:15,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:21:15,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af93b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15, skipping insertion in model container [2021-01-07 05:21:15,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:21:15,081 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~i~1,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~a~0,],[IdentifierExpression[~i~1,]]] left hand side expression in assignment: lhs: VariableLHS[~i~2,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~b~0,],[IdentifierExpression[~i~2,]]] left hand side expression in assignment: lhs: VariableLHS[~i~2,] [2021-01-07 05:21:15,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:21:15,248 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~i~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~1,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~2,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~2,] [2021-01-07 05:21:15,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:21:15,285 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:21:15,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15 WrapperNode [2021-01-07 05:21:15,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:21:15,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:21:15,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:21:15,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:21:15,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:21:15,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:21:15,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:21:15,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:21:15,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... [2021-01-07 05:21:15,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:21:15,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:21:15,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:21:15,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:21:15,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:21:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:21:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 05:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:21:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:21:15,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:21:15,893 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-01-07 05:21:15,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:21:15 BoogieIcfgContainer [2021-01-07 05:21:15,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:21:15,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:21:15,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:21:15,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:21:15,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:21:15" (1/3) ... [2021-01-07 05:21:15,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210264b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:21:15, skipping insertion in model container [2021-01-07 05:21:15,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:21:15" (2/3) ... [2021-01-07 05:21:15,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210264b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:21:15, skipping insertion in model container [2021-01-07 05:21:15,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:21:15" (3/3) ... [2021-01-07 05:21:15,908 INFO L111 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_-read.c [2021-01-07 05:21:15,915 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:21:15,919 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-01-07 05:21:15,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-01-07 05:21:15,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:21:15,961 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:21:15,961 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:21:15,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:21:15,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:21:15,962 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:21:15,962 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:21:15,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:21:15,978 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2021-01-07 05:21:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:21:15,985 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:21:15,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:21:15,986 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:21:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:21:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash 28698921, now seen corresponding path program 1 times [2021-01-07 05:21:16,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:21:16,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874312367] [2021-01-07 05:21:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:21:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:21:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:21:16,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874312367] [2021-01-07 05:21:16,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:21:16,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:21:16,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982331015] [2021-01-07 05:21:16,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:21:16,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:21:16,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:21:16,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:21:16,266 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2021-01-07 05:21:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:21:16,451 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2021-01-07 05:21:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:21:16,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-01-07 05:21:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:21:16,468 INFO L225 Difference]: With dead ends: 69 [2021-01-07 05:21:16,468 INFO L226 Difference]: Without dead ends: 65 [2021-01-07 05:21:16,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:21:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-07 05:21:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2021-01-07 05:21:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-01-07 05:21:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-01-07 05:21:16,512 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 5 [2021-01-07 05:21:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:21:16,512 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-01-07 05:21:16,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:21:16,513 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-01-07 05:21:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:21:16,513 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:21:16,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:21:16,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:21:16,514 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:21:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:21:16,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1809811544, now seen corresponding path program 1 times [2021-01-07 05:21:16,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:21:16,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435991123] [2021-01-07 05:21:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:21:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:21:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:21:16,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435991123] [2021-01-07 05:21:16,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:21:16,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:21:16,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836235162] [2021-01-07 05:21:16,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:21:16,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:21:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:21:16,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:21:16,584 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 4 states. [2021-01-07 05:21:16,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:21:16,751 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-01-07 05:21:16,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:21:16,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 05:21:16,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:21:16,754 INFO L225 Difference]: With dead ends: 37 [2021-01-07 05:21:16,754 INFO L226 Difference]: Without dead ends: 37 [2021-01-07 05:21:16,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:21:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-07 05:21:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-07 05:21:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-07 05:21:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-01-07 05:21:16,766 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 7 [2021-01-07 05:21:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:21:16,766 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-01-07 05:21:16,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:21:16,766 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2021-01-07 05:21:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:21:16,767 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:21:16,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:21:16,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:21:16,768 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:21:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:21:16,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1809811545, now seen corresponding path program 1 times [2021-01-07 05:21:16,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:21:16,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634433480] [2021-01-07 05:21:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:21:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:21:16,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:21:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:21:16,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:21:16,883 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:21:16,883 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:21:16,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:21:16,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:21:16 BoogieIcfgContainer [2021-01-07 05:21:16,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:21:16,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:21:16,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:21:16,908 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:21:16,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:21:15" (3/4) ... [2021-01-07 05:21:16,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 05:21:16,949 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-memsafety/ArraysOfVariableLength2_-read.c-witness.graphml [2021-01-07 05:21:16,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:21:16,951 INFO L168 Benchmark]: Toolchain (without parser) took 1899.78 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 90.0 MB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,952 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:21:16,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.84 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.24 ms. Allocated memory is still 153.1 MB. Free memory was 118.0 MB in the beginning and 116.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,955 INFO L168 Benchmark]: Boogie Preprocessor took 27.57 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 115.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,955 INFO L168 Benchmark]: RCFGBuilder took 537.91 ms. Allocated memory is still 153.1 MB. Free memory was 115.3 MB in the beginning and 134.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,956 INFO L168 Benchmark]: TraceAbstraction took 1007.70 ms. Allocated memory is still 153.1 MB. Free memory was 134.0 MB in the beginning and 91.5 MB in the end (delta: 42.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,957 INFO L168 Benchmark]: Witness Printer took 41.31 ms. Allocated memory is still 153.1 MB. Free memory was 91.5 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:21:16,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 233.84 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.24 ms. Allocated memory is still 153.1 MB. Free memory was 118.0 MB in the beginning and 116.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.57 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 115.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 537.91 ms. Allocated memory is still 153.1 MB. Free memory was 115.3 MB in the beginning and 134.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1007.70 ms. Allocated memory is still 153.1 MB. Free memory was 134.0 MB in the beginning and 91.5 MB in the end (delta: 42.5 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * Witness Printer took 41.31 ms. Allocated memory is still 153.1 MB. Free memory was 91.5 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L21] int a[n], i; [L22] i = 0 [L22] COND FALSE !(i < size) [L12] int res = 0, i; [L13] i = 0 [L13] COND TRUE i < size [L14] b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 93 SDslu, 78 SDs, 0 SdLazy, 68 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...