/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-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:50:14,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:50:14,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:50:14,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:50:14,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:50:14,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:50:14,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:50:14,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:50:14,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:50:14,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:50:14,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:50:14,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:50:14,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:50:14,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:50:14,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:50:14,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:50:14,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:50:14,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:50:14,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:50:14,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:50:14,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:50:14,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:50:14,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:50:14,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:50:14,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:50:14,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:50:14,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:50:14,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:50:14,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:50:14,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:50:14,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:50:14,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:50:14,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:50:14,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:50:14,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:50:14,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:50:14,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:50:14,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:50:14,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:50:14,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:50:14,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:50:14,978 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:50:14,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:50:14,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:50:14,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:50:14,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:50:14,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:50:14,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:50:14,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:50:14,980 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:50:14,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:50:14,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:50:14,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:50:14,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:50:14,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:50:14,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:50:14,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:50:14,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:50:14,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:50:14,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:50:14,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:50:14,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:50:14,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:50:15,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:50:15,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:50:15,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:50:15,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:50:15,461 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:50:15,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2021-01-06 16:50:15,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ff2590ff0/550bf0750f6c4bbf82510f29af359a09/FLAGab7e3c80d [2021-01-06 16:50:16,130 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:50:16,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2021-01-06 16:50:16,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ff2590ff0/550bf0750f6c4bbf82510f29af359a09/FLAGab7e3c80d [2021-01-06 16:50:16,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ff2590ff0/550bf0750f6c4bbf82510f29af359a09 [2021-01-06 16:50:16,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:50:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:50:16,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:50:16,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:50:16,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:50:16,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb5713f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16, skipping insertion in model container [2021-01-06 16:50:16,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:50:16,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:50:16,823 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-invgen/id_trans.i[893,906] left hand side expression in assignment: lhs: VariableLHS[~nlen~0,] left hand side expression in assignment: lhs: VariableLHS[~idBitLength~0,] left hand side expression in assignment: lhs: VariableLHS[~material_length~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] [2021-01-06 16:50:16,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:50:16,870 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:50:16,887 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-invgen/id_trans.i[893,906] left hand side expression in assignment: lhs: VariableLHS[~nlen~0,] left hand side expression in assignment: lhs: VariableLHS[~idBitLength~0,] left hand side expression in assignment: lhs: VariableLHS[~material_length~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] [2021-01-06 16:50:16,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:50:16,930 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:50:16,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16 WrapperNode [2021-01-06 16:50:16,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:50:16,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:50:16,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:50:16,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:50:16,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:50:16,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:50:16,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:50:16,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:50:16,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:16,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:17,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (1/1) ... [2021-01-06 16:50:17,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:50:17,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:50:17,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:50:17,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:50:17,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (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 [2021-01-06 16:50:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:50:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:50:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:50:17,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:50:17,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:50:17,362 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-01-06 16:50:17,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:50:17 BoogieIcfgContainer [2021-01-06 16:50:17,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:50:17,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:50:17,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:50:17,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:50:17,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:50:16" (1/3) ... [2021-01-06 16:50:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee71bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:50:17, skipping insertion in model container [2021-01-06 16:50:17,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:50:16" (2/3) ... [2021-01-06 16:50:17,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee71bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:50:17, skipping insertion in model container [2021-01-06 16:50:17,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:50:17" (3/3) ... [2021-01-06 16:50:17,372 INFO L111 eAbstractionObserver]: Analyzing ICFG id_trans.i [2021-01-06 16:50:17,385 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:50:17,396 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-01-06 16:50:17,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 16:50:17,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:50:17,490 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:50:17,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:50:17,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:50:17,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:50:17,490 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:50:17,491 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:50:17,491 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:50:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-01-06 16:50:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 16:50:17,529 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:50:17,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 16:50:17,530 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:50:17,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:50:17,536 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2021-01-06 16:50:17,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:50:17,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514788696] [2021-01-06 16:50:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:50:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:50:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:50:17,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514788696] [2021-01-06 16:50:17,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:50:17,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:50:17,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037861798] [2021-01-06 16:50:17,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:50:17,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:50:17,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:50:17,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:50:17,924 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2021-01-06 16:50:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:50:18,058 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2021-01-06 16:50:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:50:18,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-01-06 16:50:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:50:18,069 INFO L225 Difference]: With dead ends: 49 [2021-01-06 16:50:18,069 INFO L226 Difference]: Without dead ends: 17 [2021-01-06 16:50:18,073 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 [2021-01-06 16:50:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-01-06 16:50:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-01-06 16:50:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-01-06 16:50:18,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-01-06 16:50:18,113 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2021-01-06 16:50:18,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:50:18,114 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-01-06 16:50:18,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:50:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-01-06 16:50:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 16:50:18,114 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:50:18,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:50:18,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:50:18,115 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:50:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:50:18,116 INFO L82 PathProgramCache]: Analyzing trace with hash 182520880, now seen corresponding path program 1 times [2021-01-06 16:50:18,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:50:18,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819131070] [2021-01-06 16:50:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:50:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:50:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:50:18,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819131070] [2021-01-06 16:50:18,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:50:18,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:50:18,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027604814] [2021-01-06 16:50:18,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:50:18,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:50:18,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:50:18,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:50:18,198 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2021-01-06 16:50:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:50:18,256 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-01-06 16:50:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 16:50:18,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-01-06 16:50:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:50:18,258 INFO L225 Difference]: With dead ends: 17 [2021-01-06 16:50:18,259 INFO L226 Difference]: Without dead ends: 15 [2021-01-06 16:50:18,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:50:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-01-06 16:50:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-01-06 16:50:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-01-06 16:50:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-01-06 16:50:18,272 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-01-06 16:50:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:50:18,273 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-01-06 16:50:18,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:50:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-01-06 16:50:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 16:50:18,275 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:50:18,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:50:18,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:50:18,277 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:50:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:50:18,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1729194902, now seen corresponding path program 1 times [2021-01-06 16:50:18,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:50:18,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159897974] [2021-01-06 16:50:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:50:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:50:18,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:50:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:50:18,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:50:18,458 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:50:18,458 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:50:18,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:50:18,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:50:18 BoogieIcfgContainer [2021-01-06 16:50:18,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:50:18,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:50:18,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:50:18,488 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:50:18,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:50:17" (3/4) ... [2021-01-06 16:50:18,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 16:50:18,535 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-invgen/id_trans.i-witness.graphml [2021-01-06 16:50:18,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:50:18,538 INFO L168 Benchmark]: Toolchain (without parser) took 2004.96 ms. Allocated memory is still 163.6 MB. Free memory was 138.7 MB in the beginning and 109.1 MB in the end (delta: 29.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,538 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 163.6 MB. Free memory is still 135.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:50:18,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.84 ms. Allocated memory is still 163.6 MB. Free memory was 138.4 MB in the beginning and 128.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 163.6 MB. Free memory was 128.7 MB in the beginning and 127.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,541 INFO L168 Benchmark]: Boogie Preprocessor took 27.07 ms. Allocated memory is still 163.6 MB. Free memory was 127.1 MB in the beginning and 126.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,542 INFO L168 Benchmark]: RCFGBuilder took 361.21 ms. Allocated memory is still 163.6 MB. Free memory was 126.0 MB in the beginning and 112.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,543 INFO L168 Benchmark]: TraceAbstraction took 1120.86 ms. Allocated memory is still 163.6 MB. Free memory was 112.5 MB in the beginning and 110.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,543 INFO L168 Benchmark]: Witness Printer took 48.17 ms. Allocated memory is still 163.6 MB. Free memory was 110.6 MB in the beginning and 109.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:50:18,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 163.6 MB. Free memory is still 135.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 396.84 ms. Allocated memory is still 163.6 MB. Free memory was 138.4 MB in the beginning and 128.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.75 ms. Allocated memory is still 163.6 MB. Free memory was 128.7 MB in the beginning and 127.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.07 ms. Allocated memory is still 163.6 MB. Free memory was 127.1 MB in the beginning and 126.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 361.21 ms. Allocated memory is still 163.6 MB. Free memory was 126.0 MB in the beginning and 112.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1120.86 ms. Allocated memory is still 163.6 MB. Free memory was 112.5 MB in the beginning and 110.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. * Witness Printer took 48.17 ms. Allocated memory is still 163.6 MB. Free memory was 110.6 MB in the beginning and 109.1 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 25 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 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...