java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:18:23,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:18:23,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:18:23,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:18:23,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:18:23,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:18:23,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:18:23,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:18:23,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:18:23,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:18:23,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:18:23,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:18:23,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:18:23,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:18:23,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:18:23,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:18:23,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:18:23,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:18:23,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:18:23,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:18:23,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:18:23,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:18:23,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:18:23,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:18:23,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:18:23,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:18:23,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:18:23,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:18:23,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:18:23,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:18:23,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:18:23,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:18:23,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:18:23,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:18:23,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:18:23,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:18:23,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 11:18:23,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:18:23,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:18:23,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:18:23,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:18:23,108 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:18:23,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:18:23,108 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:18:23,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:18:23,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:18:23,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:18:23,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:18:23,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:18:23,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:18:23,110 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:18:23,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:18:23,110 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:18:23,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:18:23,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:18:23,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:18:23,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:18:23,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:18:23,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:18:23,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:18:23,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:18:23,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:18:23,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:18:23,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:18:23,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:18:23,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:18:23,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:18:23,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:18:23,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:18:23,167 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:18:23,168 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:18:23,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2019-10-02 11:18:23,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6537e73/6e03ae64e1d24bf9ae6a585b45b8100b/FLAG8411301a1 [2019-10-02 11:18:23,694 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:18:23,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2019-10-02 11:18:23,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6537e73/6e03ae64e1d24bf9ae6a585b45b8100b/FLAG8411301a1 [2019-10-02 11:18:24,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6537e73/6e03ae64e1d24bf9ae6a585b45b8100b [2019-10-02 11:18:24,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:18:24,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:18:24,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:18:24,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:18:24,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:18:24,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c2bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24, skipping insertion in model container [2019-10-02 11:18:24,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,136 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:18:24,151 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:18:24,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:18:24,317 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:18:24,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:18:24,346 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:18:24,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24 WrapperNode [2019-10-02 11:18:24,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:18:24,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:18:24,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:18:24,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:18:24,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... [2019-10-02 11:18:24,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:18:24,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:18:24,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:18:24,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:18:24,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-02 11:18:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:18:24,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:18:24,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:18:24,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:18:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:18:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 11:18:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:18:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 11:18:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:18:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:18:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:18:24,738 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:18:24,739 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:18:24,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:18:24 BoogieIcfgContainer [2019-10-02 11:18:24,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:18:24,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:18:24,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:18:24,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:18:24,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:18:24" (1/3) ... [2019-10-02 11:18:24,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670fdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:18:24, skipping insertion in model container [2019-10-02 11:18:24,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:18:24" (2/3) ... [2019-10-02 11:18:24,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670fdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:18:24, skipping insertion in model container [2019-10-02 11:18:24,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:18:24" (3/3) ... [2019-10-02 11:18:24,748 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2019-10-02 11:18:24,759 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:18:24,766 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:18:24,784 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:18:24,814 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:18:24,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:18:24,815 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:18:24,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:18:24,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:18:24,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:18:24,816 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:18:24,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:18:24,816 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:18:24,831 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-02 11:18:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-02 11:18:24,836 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:18:24,837 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:18:24,840 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:18:24,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:18:24,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1719634852, now seen corresponding path program 1 times [2019-10-02 11:18:24,847 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:18:24,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:18:24,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:24,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:18:24,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:18:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:18:25,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:18:25,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 11:18:25,162 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 11:18:25,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 11:18:25,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:18:25,213 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-10-02 11:18:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:18:25,406 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2019-10-02 11:18:25,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 11:18:25,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-02 11:18:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:18:25,421 INFO L225 Difference]: With dead ends: 46 [2019-10-02 11:18:25,421 INFO L226 Difference]: Without dead ends: 22 [2019-10-02 11:18:25,428 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:18:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-02 11:18:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-02 11:18:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-02 11:18:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-10-02 11:18:25,494 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2019-10-02 11:18:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:18:25,495 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-10-02 11:18:25,495 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 11:18:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-10-02 11:18:25,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-02 11:18:25,500 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:18:25,500 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:18:25,501 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:18:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:18:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash 769813017, now seen corresponding path program 1 times [2019-10-02 11:18:25,503 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:18:25,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:18:25,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:25,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:18:25,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:18:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:18:25,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:18:25,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 11:18:25,620 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 11:18:25,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 11:18:25,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:18:25,621 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2019-10-02 11:18:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:18:25,680 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-10-02 11:18:25,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 11:18:25,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-02 11:18:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:18:25,682 INFO L225 Difference]: With dead ends: 28 [2019-10-02 11:18:25,683 INFO L226 Difference]: Without dead ends: 26 [2019-10-02 11:18:25,684 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:18:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-02 11:18:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-02 11:18:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-02 11:18:25,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-10-02 11:18:25,692 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2019-10-02 11:18:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:18:25,693 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-10-02 11:18:25,693 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 11:18:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-10-02 11:18:25,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-02 11:18:25,694 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:18:25,695 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:18:25,695 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:18:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:18:25,695 INFO L82 PathProgramCache]: Analyzing trace with hash 889343161, now seen corresponding path program 1 times [2019-10-02 11:18:25,696 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:18:25,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:18:25,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:25,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:18:25,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:18:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:18:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:18:25,818 INFO L478 BasicCegarLoop]: Counterexample might be feasible [2019-10-02 11:18:25,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:18:25 BoogieIcfgContainer [2019-10-02 11:18:25,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:18:25,846 INFO L168 Benchmark]: Toolchain (without parser) took 1723.23 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.5 MB in the beginning and 120.3 MB in the end (delta: -32.8 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,847 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.93 ms. Allocated memory is still 132.6 MB. Free memory was 87.3 MB in the beginning and 77.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,849 INFO L168 Benchmark]: Boogie Preprocessor took 126.64 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 77.5 MB in the beginning and 176.2 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,850 INFO L168 Benchmark]: RCFGBuilder took 266.36 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 163.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,851 INFO L168 Benchmark]: TraceAbstraction took 1101.06 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 120.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:18:25,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.93 ms. Allocated memory is still 132.6 MB. Free memory was 87.3 MB in the beginning and 77.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.64 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 77.5 MB in the beginning and 176.2 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 266.36 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 163.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1101.06 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 120.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L21] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 13 SDslu, 98 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...