/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-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:52:36,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:52:36,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:52:36,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:52:36,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:52:36,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:52:36,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:52:36,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:52:36,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:52:36,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:52:36,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:52:36,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:52:36,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:52:36,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:52:36,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:52:36,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:52:36,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:52:36,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:52:36,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:52:36,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:52:36,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:52:36,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:52:36,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:52:37,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:52:37,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:52:37,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:52:37,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:52:37,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:52:37,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:52:37,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:52:37,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:52:37,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:52:37,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:52:37,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:52:37,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:52:37,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:52:37,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:52:37,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:52:37,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:52:37,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:52:37,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:52:37,098 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:52:37,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:52:37,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:52:37,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:52:37,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:52:37,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:52:37,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:52:37,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:52:37,101 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:52:37,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:52:37,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:52:37,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:52:37,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:52:37,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:52:37,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:52:37,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:52:37,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:52:37,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:52:37,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:52:37,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:52:37,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:52:37,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:52:37,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:52:37,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:52:37,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:52:37,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:52:37,618 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:52:37,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2020-12-23 06:52:37,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a0029d659/237a15ed00c44a979dcb77b177135f40/FLAGad0454d9c [2020-12-23 06:52:38,288 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:52:38,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2020-12-23 06:52:38,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a0029d659/237a15ed00c44a979dcb77b177135f40/FLAGad0454d9c [2020-12-23 06:52:38,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a0029d659/237a15ed00c44a979dcb77b177135f40 [2020-12-23 06:52:38,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:52:38,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:52:38,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:52:38,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:52:38,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:52:38,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378195d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38, skipping insertion in model container [2020-12-23 06:52:38,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:52:38,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 06:52:38,839 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i[921,934] left hand side expression in assignment: lhs: VariableLHS[~index~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~array~0,],[BinaryExpression[ARITHMOD,IdentifierExpression[~index~0,],IntegerLiteral[4294967296]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 06:52:38,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:52:38,865 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 06:52:38,880 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i[921,934] left hand side expression in assignment: lhs: VariableLHS[~index~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],BinaryExpression[ARITHMOD,IdentifierExpression[~index~0,],IntegerLiteral[4294967296]]]]]] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 06:52:38,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:52:38,904 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:52:38,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38 WrapperNode [2020-12-23 06:52:38,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:52:38,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:52:38,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:52:38,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:52:38,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:52:38,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:52:38,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:52:38,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:52:38,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (1/1) ... [2020-12-23 06:52:38,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:52:38,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:52:38,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:52:38,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:52:38,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (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 [2020-12-23 06:52:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:52:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:52:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:52:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:52:39,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:52:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:52:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:52:39,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:52:39,348 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-23 06:52:39,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:52:39 BoogieIcfgContainer [2020-12-23 06:52:39,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:52:39,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:52:39,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:52:39,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:52:39,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:52:38" (1/3) ... [2020-12-23 06:52:39,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d780a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:52:39, skipping insertion in model container [2020-12-23 06:52:39,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:52:38" (2/3) ... [2020-12-23 06:52:39,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d780a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:52:39, skipping insertion in model container [2020-12-23 06:52:39,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:52:39" (3/3) ... [2020-12-23 06:52:39,376 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2020-12-23 06:52:39,394 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:52:39,403 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:52:39,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:52:39,508 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:52:39,509 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:52:39,509 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:52:39,509 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:52:39,509 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:52:39,509 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:52:39,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:52:39,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:52:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-12-23 06:52:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 06:52:39,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:52:39,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:52:39,533 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:52:39,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:52:39,541 INFO L82 PathProgramCache]: Analyzing trace with hash 502060139, now seen corresponding path program 1 times [2020-12-23 06:52:39,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:52:39,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134640660] [2020-12-23 06:52:39,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:52:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:52:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:52:39,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134640660] [2020-12-23 06:52:39,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:52:39,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:52:39,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176997629] [2020-12-23 06:52:39,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:52:39,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:52:39,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:52:39,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:52:39,741 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-12-23 06:52:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:52:39,761 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2020-12-23 06:52:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:52:39,762 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 06:52:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:52:39,773 INFO L225 Difference]: With dead ends: 24 [2020-12-23 06:52:39,774 INFO L226 Difference]: Without dead ends: 10 [2020-12-23 06:52:39,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:52:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-23 06:52:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-23 06:52:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-23 06:52:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-12-23 06:52:39,818 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2020-12-23 06:52:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:52:39,818 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-12-23 06:52:39,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:52:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-12-23 06:52:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 06:52:39,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:52:39,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:52:39,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:52:39,820 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:52:39,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:52:39,821 INFO L82 PathProgramCache]: Analyzing trace with hash 586736404, now seen corresponding path program 1 times [2020-12-23 06:52:39,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:52:39,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581153228] [2020-12-23 06:52:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:52:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:52:39,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:52:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:52:39,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:52:39,914 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:52:39,914 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:52:39,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:52:39,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:52:39 BoogieIcfgContainer [2020-12-23 06:52:39,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:52:39,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:52:39,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:52:39,945 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:52:39,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:52:39" (3/4) ... [2020-12-23 06:52:39,948 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 06:52:39,993 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-crafted/simple_array_index_value_1-2.i-witness.graphml [2020-12-23 06:52:39,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:52:39,996 INFO L168 Benchmark]: Toolchain (without parser) took 1347.06 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 112.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:39,996 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 152.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:52:39,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.34 ms. Allocated memory is still 152.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:39,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.35 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 115.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:39,999 INFO L168 Benchmark]: Boogie Preprocessor took 25.57 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 114.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:40,000 INFO L168 Benchmark]: RCFGBuilder took 381.20 ms. Allocated memory is still 152.0 MB. Free memory was 113.8 MB in the beginning and 101.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:40,000 INFO L168 Benchmark]: TraceAbstraction took 585.46 ms. Allocated memory is still 152.0 MB. Free memory was 101.5 MB in the beginning and 114.6 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:52:40,001 INFO L168 Benchmark]: Witness Printer took 48.15 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 112.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:52:40,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 152.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 255.34 ms. Allocated memory is still 152.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.35 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 115.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.57 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 114.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 381.20 ms. Allocated memory is still 152.0 MB. Free memory was 113.8 MB in the beginning and 101.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 585.46 ms. Allocated memory is still 152.0 MB. Free memory was 101.5 MB in the beginning and 114.6 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 48.15 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 112.5 MB in the end (delta: 2.1 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: 26]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND TRUE index >= 10000 [L48] tmp < 10000 && array[tmp] == tmp [L48] EXPR array[tmp] [L48] tmp < 10000 && array[tmp] == tmp [L25] COND TRUE !(cond) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...