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/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:00:57,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:00:57,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:00:57,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:00:57,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:00:57,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:00:57,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:00:57,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:00:57,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:00:57,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:00:57,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:00:57,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:00:57,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:00:57,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:00:57,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:00:57,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:00:57,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:00:57,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:00:57,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:00:57,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:00:57,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:00:57,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:00:57,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:00:57,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:00:57,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:00:57,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:00:57,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:00:57,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:00:57,912 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 [2019-09-20 13:00:57,935 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:00:57,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:00:57,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:00:57,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:00:57,938 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:00:57,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:00:57,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:00:57,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:00:57,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:00:57,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:00:57,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:00:57,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:00:57,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:00:57,940 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:00:57,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:00:57,941 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:00:57,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:00:57,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:00:57,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:00:57,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:00:57,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:00:57,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:00:57,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:00:57,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:00:57,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:00:57,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:00:57,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:00:57,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:00:57,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:00:57,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:00:58,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:00:58,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:00:58,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:00:58,018 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:00:58,019 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2019-09-20 13:00:58,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b82f13/ca4c11437ee34b37aacb27f22db8e241/FLAG1acfa6cbe [2019-09-20 13:00:58,567 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:00:58,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c [2019-09-20 13:00:58,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b82f13/ca4c11437ee34b37aacb27f22db8e241/FLAG1acfa6cbe [2019-09-20 13:00:58,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1b82f13/ca4c11437ee34b37aacb27f22db8e241 [2019-09-20 13:00:58,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:00:59,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:00:59,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:59,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:00:59,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:00:59,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:58" (1/1) ... [2019-09-20 13:00:59,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31083fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59, skipping insertion in model container [2019-09-20 13:00:59,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:58" (1/1) ... [2019-09-20 13:00:59,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:00:59,028 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:00:59,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:59,211 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:00:59,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:59,243 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:00:59,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59 WrapperNode [2019-09-20 13:00:59,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:59,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:00:59,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:00:59,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:00:59,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (1/1) ... [2019-09-20 13:00:59,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:00:59,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:00:59,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:00:59,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:00:59,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (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 [2019-09-20 13:00:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:00:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:00:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-09-20 13:00:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-20 13:00:59,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:00:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:00:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:00:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:00:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:00:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:00:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:00:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:00:59,803 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:00:59,803 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:00:59,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:59 BoogieIcfgContainer [2019-09-20 13:00:59,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:00:59,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:00:59,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:00:59,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:00:59,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:00:58" (1/3) ... [2019-09-20 13:00:59,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714c1aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:59, skipping insertion in model container [2019-09-20 13:00:59,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:59" (2/3) ... [2019-09-20 13:00:59,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714c1aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:59, skipping insertion in model container [2019-09-20 13:00:59,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:59" (3/3) ... [2019-09-20 13:00:59,812 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2019-09-20 13:00:59,821 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:00:59,828 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:00:59,845 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:00:59,873 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:00:59,874 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:00:59,874 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:00:59,874 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:00:59,874 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:00:59,874 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:00:59,875 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:00:59,875 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:00:59,875 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:00:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-20 13:00:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:00:59,898 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:59,899 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:59,901 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:59,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:59,906 INFO L82 PathProgramCache]: Analyzing trace with hash -685779266, now seen corresponding path program 1 times [2019-09-20 13:00:59,907 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:59,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:59,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:59,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:59,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:00,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:00,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:01:00,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:01:00,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:01:00,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:01:00,196 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2019-09-20 13:01:00,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:00,273 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-09-20 13:01:00,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:01:00,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-20 13:01:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:00,285 INFO L225 Difference]: With dead ends: 36 [2019-09-20 13:01:00,285 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 13:01:00,289 INFO L636 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 [2019-09-20 13:01:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 13:01:00,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-20 13:01:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-20 13:01:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-09-20 13:01:00,333 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2019-09-20 13:01:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:00,333 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-09-20 13:01:00,333 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:01:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-09-20 13:01:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:01:00,335 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:01:00,335 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:01:00,335 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:01:00,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:01:00,336 INFO L82 PathProgramCache]: Analyzing trace with hash 636648720, now seen corresponding path program 1 times [2019-09-20 13:01:00,336 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:01:00,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:01:00,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:00,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:01:00,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:00,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:00,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:01:00,509 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:01:00,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:01:00,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:01:00,510 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 5 states. [2019-09-20 13:01:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:00,532 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-09-20 13:01:00,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:01:00,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-09-20 13:01:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:00,536 INFO L225 Difference]: With dead ends: 23 [2019-09-20 13:01:00,537 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 13:01:00,538 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:01:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 13:01:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-20 13:01:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-20 13:01:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-09-20 13:01:00,546 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2019-09-20 13:01:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:00,547 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-09-20 13:01:00,547 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:01:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-09-20 13:01:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-20 13:01:00,550 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:01:00,550 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:01:00,550 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:01:00,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:01:00,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1738724303, now seen corresponding path program 1 times [2019-09-20 13:01:00,551 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:01:00,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:01:00,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:00,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:01:00,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:00,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:00,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:01:00,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:01:00,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:01:00,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:01:00,910 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 10 states. [2019-09-20 13:01:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:01,195 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-09-20 13:01:01,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:01:01,195 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-09-20 13:01:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:01,196 INFO L225 Difference]: With dead ends: 21 [2019-09-20 13:01:01,198 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:01:01,199 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:01:01,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:01:01,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:01:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:01:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:01:01,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-09-20 13:01:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:01,201 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:01:01,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:01:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:01:01,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:01:01,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:01:01,290 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:01:01,291 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:01:01,291 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:01,291 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (and (= |f_#in~a| f_~a) (= |f_#in~p1.base| f_~p1.base) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p2.offset |f_#in~p2.offset|)) [2019-09-20 13:01:01,291 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 17) no Hoare annotation was computed. [2019-09-20 13:01:01,291 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-09-20 13:01:01,292 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2019-09-20 13:01:01,292 INFO L439 ceAbstractionStarter]: At program point fENTRY(lines 11 18) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-09-20 13:01:01,292 INFO L443 ceAbstractionStarter]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2019-09-20 13:01:01,292 INFO L443 ceAbstractionStarter]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2019-09-20 13:01:01,292 INFO L443 ceAbstractionStarter]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2019-09-20 13:01:01,292 INFO L439 ceAbstractionStarter]: At program point gENTRY(lines 4 9) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-09-20 13:01:01,292 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:01,293 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 13:01:01,293 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:01:01,293 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:01:01,293 INFO L439 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (= 4 |main_#t~mem4|) (not (= .cse0 |main_~#a~0.base|)) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= .cse0 |main_~#p1~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)))) [2019-09-20 13:01:01,294 INFO L443 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2019-09-20 13:01:01,295 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-09-20 13:01:01,295 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2019-09-20 13:01:01,295 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-09-20 13:01:01,295 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2019-09-20 13:01:01,295 INFO L439 ceAbstractionStarter]: At program point L39(lines 20 46) the Hoare annotation is: false [2019-09-20 13:01:01,295 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 40) no Hoare annotation was computed. [2019-09-20 13:01:01,296 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-09-20 13:01:01,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:01:01 BoogieIcfgContainer [2019-09-20 13:01:01,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:01:01,312 INFO L168 Benchmark]: Toolchain (without parser) took 2309.74 ms. Allocated memory was 132.1 MB in the beginning and 221.8 MB in the end (delta: 89.7 MB). Free memory was 86.8 MB in the beginning and 182.8 MB in the end (delta: -95.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:01:01,315 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:01:01,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.39 ms. Allocated memory is still 132.1 MB. Free memory was 86.6 MB in the beginning and 76.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:01,319 INFO L168 Benchmark]: Boogie Preprocessor took 128.87 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 76.4 MB in the beginning and 174.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:01,321 INFO L168 Benchmark]: RCFGBuilder took 431.71 ms. Allocated memory is still 198.7 MB. Free memory was 174.5 MB in the beginning and 155.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:01,322 INFO L168 Benchmark]: TraceAbstraction took 1501.68 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 155.4 MB in the beginning and 182.8 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:01:01,334 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.39 ms. Allocated memory is still 132.1 MB. Free memory was 86.6 MB in the beginning and 76.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.87 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 76.4 MB in the beginning and 174.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.71 ms. Allocated memory is still 198.7 MB. Free memory was 174.5 MB in the beginning and 155.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1501.68 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 155.4 MB in the beginning and 182.8 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 10 SDslu, 150 SDs, 0 SdLazy, 99 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 60 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 6277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...