./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test14_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/test14_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ece3b781ca9ff96a4c645cda94cebcb70795c1b ...................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:33:45,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:33:45,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:33:45,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:33:45,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:33:45,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:33:45,625 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:33:45,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:33:45,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:33:45,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:33:45,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:33:45,637 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:33:45,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:33:45,639 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:33:45,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:33:45,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:33:45,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:33:45,654 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:33:45,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:33:45,661 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:33:45,666 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:33:45,667 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:33:45,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:33:45,673 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:33:45,673 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:33:45,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:33:45,676 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:33:45,677 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:33:45,681 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:33:45,682 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:33:45,682 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:33:45,683 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:33:45,683 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:33:45,683 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:33:45,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:33:45,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:33:45,689 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 09:33:45,717 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:33:45,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:33:45,718 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:33:45,718 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:33:45,718 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:33:45,719 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:33:45,719 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:33:45,720 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:33:45,721 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:33:45,721 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:33:45,721 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:33:45,721 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:33:45,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:33:45,721 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:33:45,722 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:33:45,723 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:33:45,723 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:33:45,723 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 09:33:45,724 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ece3b781ca9ff96a4c645cda94cebcb70795c1b [2019-01-12 09:33:45,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:33:45,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:33:45,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:33:45,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:33:45,799 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:33:45,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test14_true-unreach-call_true-termination.c [2019-01-12 09:33:45,866 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c810448d/ee48d8de779a495f95acf67b8198ef11/FLAG1de959700 [2019-01-12 09:33:46,272 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:33:46,272 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test14_true-unreach-call_true-termination.c [2019-01-12 09:33:46,278 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c810448d/ee48d8de779a495f95acf67b8198ef11/FLAG1de959700 [2019-01-12 09:33:46,669 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c810448d/ee48d8de779a495f95acf67b8198ef11 [2019-01-12 09:33:46,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:33:46,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:33:46,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:33:46,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:33:46,680 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:33:46,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:33:46" (1/1) ... [2019-01-12 09:33:46,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fed73e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:46, skipping insertion in model container [2019-01-12 09:33:46,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:33:46" (1/1) ... [2019-01-12 09:33:46,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:33:46,711 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:33:46,949 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:33:46,969 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:33:46,993 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:33:47,014 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:33:47,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47 WrapperNode [2019-01-12 09:33:47,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:33:47,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:33:47,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:33:47,017 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:33:47,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:33:47,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:33:47,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:33:47,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:33:47,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (1/1) ... [2019-01-12 09:33:47,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:33:47,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:33:47,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:33:47,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:33:47,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (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 [2019-01-12 09:33:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:33:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:33:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 09:33:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 09:33:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 09:33:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 09:33:47,698 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:33:47,699 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 09:33:47,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:47 BoogieIcfgContainer [2019-01-12 09:33:47,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:33:47,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:33:47,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:33:47,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:33:47,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:33:46" (1/3) ... [2019-01-12 09:33:47,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3393f807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:33:47, skipping insertion in model container [2019-01-12 09:33:47,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:47" (2/3) ... [2019-01-12 09:33:47,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3393f807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:33:47, skipping insertion in model container [2019-01-12 09:33:47,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:47" (3/3) ... [2019-01-12 09:33:47,711 INFO L112 eAbstractionObserver]: Analyzing ICFG test14_true-unreach-call_true-termination.c [2019-01-12 09:33:47,722 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:33:47,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:33:47,751 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:33:47,784 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:33:47,785 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:33:47,785 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:33:47,785 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:33:47,786 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:33:47,786 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:33:47,786 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:33:47,786 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:33:47,786 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:33:47,804 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-12 09:33:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 09:33:47,812 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:33:47,814 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:33:47,816 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:33:47,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:33:47,827 INFO L82 PathProgramCache]: Analyzing trace with hash 119352366, now seen corresponding path program 1 times [2019-01-12 09:33:47,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:33:47,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:33:47,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:47,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:33:47,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:33:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:33:48,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:33:48,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 09:33:48,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 09:33:48,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 09:33:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 09:33:48,107 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-01-12 09:33:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:33:48,198 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-01-12 09:33:48,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 09:33:48,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-01-12 09:33:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:33:48,210 INFO L225 Difference]: With dead ends: 20 [2019-01-12 09:33:48,211 INFO L226 Difference]: Without dead ends: 11 [2019-01-12 09:33:48,214 INFO L631 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 [2019-01-12 09:33:48,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-12 09:33:48,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-12 09:33:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-12 09:33:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-01-12 09:33:48,250 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2019-01-12 09:33:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:33:48,251 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-01-12 09:33:48,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 09:33:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-01-12 09:33:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 09:33:48,252 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:33:48,253 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:33:48,253 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:33:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:33:48,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1264891372, now seen corresponding path program 1 times [2019-01-12 09:33:48,253 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:33:48,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:33:48,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:48,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:33:48,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:33:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:33:48,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:33:48,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 09:33:48,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 09:33:48,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 09:33:48,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-12 09:33:48,536 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2019-01-12 09:33:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:33:48,834 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-12 09:33:48,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 09:33:48,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-12 09:33:48,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:33:48,836 INFO L225 Difference]: With dead ends: 11 [2019-01-12 09:33:48,836 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 09:33:48,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 09:33:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 09:33:48,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 09:33:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 09:33:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 09:33:48,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-01-12 09:33:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:33:48,839 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 09:33:48,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 09:33:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 09:33:48,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 09:33:48,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 09:33:48,873 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 09:33:48,873 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-12 09:33:48,873 INFO L448 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-01-12 09:33:48,873 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-01-12 09:33:48,873 INFO L448 ceAbstractionStarter]: For program point L9-2(line 9) no Hoare annotation was computed. [2019-01-12 09:33:48,874 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-01-12 09:33:48,874 INFO L444 ceAbstractionStarter]: At program point L9-3(lines 7 10) the Hoare annotation is: (not (= ULTIMATE.start_main_~pc~0.base 0)) [2019-01-12 09:33:48,874 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 09:33:48,874 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 09:33:48,874 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 09:33:48,875 INFO L444 ceAbstractionStarter]: At program point L26(lines 12 27) the Hoare annotation is: (not (= ULTIMATE.start_main_~pc~0.base 0)) [2019-01-12 09:33:48,875 INFO L444 ceAbstractionStarter]: At program point L20(lines 12 27) the Hoare annotation is: false [2019-01-12 09:33:48,876 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2019-01-12 09:33:48,876 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2019-01-12 09:33:48,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:33:48 BoogieIcfgContainer [2019-01-12 09:33:48,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:33:48,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:33:48,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:33:48,892 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:33:48,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:47" (3/4) ... [2019-01-12 09:33:48,898 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 09:33:48,912 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 09:33:48,912 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 09:33:48,979 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 09:33:48,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:33:48,981 INFO L168 Benchmark]: Toolchain (without parser) took 2306.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,983 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:33:48,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.56 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.50 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:33:48,985 INFO L168 Benchmark]: Boogie Preprocessor took 35.13 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,986 INFO L168 Benchmark]: RCFGBuilder took 595.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,987 INFO L168 Benchmark]: TraceAbstraction took 1188.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,987 INFO L168 Benchmark]: Witness Printer took 88.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:48,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.56 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.50 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.13 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 595.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1188.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Witness Printer took 88.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 12]: Loop Invariant Derived loop invariant: !(pc == 0) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: !(pc == 0) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 21 SDslu, 20 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...