./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/trex01_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/loops/trex01_true-unreach-call_true-termination.i -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 ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:42:25,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:42:25,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:42:25,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:42:25,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:42:25,593 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:42:25,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:42:25,597 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:42:25,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:42:25,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:42:25,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:42:25,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:42:25,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:42:25,604 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:42:25,605 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:42:25,606 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:42:25,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:42:25,609 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:42:25,611 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:42:25,613 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:42:25,614 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:42:25,616 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:42:25,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:42:25,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:42:25,619 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:42:25,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:42:25,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:42:25,623 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:42:25,624 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:42:25,626 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:42:25,626 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:42:25,627 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:42:25,627 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:42:25,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:42:25,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:42:25,630 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:42:25,630 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:42:25,647 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:42:25,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:42:25,649 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:42:25,649 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:42:25,650 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:42:25,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:42:25,650 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:42:25,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:42:25,651 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:42:25,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:42:25,652 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:42:25,653 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:42:25,654 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:42:25,654 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:42:25,654 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:42:25,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:42:25,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:42:25,655 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:42:25,655 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:42:25,656 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:42:25,656 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:42:25,656 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:42:25,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:42:25,656 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 -> ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 [2018-12-31 05:42:25,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:42:25,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:42:25,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:42:25,711 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:42:25,712 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:42:25,712 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/trex01_true-unreach-call_true-termination.i [2018-12-31 05:42:25,771 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/073f37665/8bbe53bc77a0499cb9080b19fbc5c36b/FLAG55c4d35a9 [2018-12-31 05:42:26,176 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:42:26,177 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/trex01_true-unreach-call_true-termination.i [2018-12-31 05:42:26,183 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/073f37665/8bbe53bc77a0499cb9080b19fbc5c36b/FLAG55c4d35a9 [2018-12-31 05:42:26,566 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/073f37665/8bbe53bc77a0499cb9080b19fbc5c36b [2018-12-31 05:42:26,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:42:26,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:42:26,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:42:26,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:42:26,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:42:26,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283bee70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26, skipping insertion in model container [2018-12-31 05:42:26,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:42:26,609 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:42:26,841 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:42:26,849 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:42:26,877 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:42:26,902 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:42:26,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26 WrapperNode [2018-12-31 05:42:26,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:42:26,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:42:26,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:42:26,905 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:42:26,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:42:26,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:42:26,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:42:26,963 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:42:26,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:26,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:27,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:27,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (1/1) ... [2018-12-31 05:42:27,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:42:27,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:42:27,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:42:27,013 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:42:27,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (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 [2018-12-31 05:42:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:42:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:42:27,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:42:27,698 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-31 05:42:27,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:27 BoogieIcfgContainer [2018-12-31 05:42:27,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:42:27,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:42:27,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:42:27,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:42:27,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:42:26" (1/3) ... [2018-12-31 05:42:27,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796275ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:42:27, skipping insertion in model container [2018-12-31 05:42:27,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:26" (2/3) ... [2018-12-31 05:42:27,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796275ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:42:27, skipping insertion in model container [2018-12-31 05:42:27,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:27" (3/3) ... [2018-12-31 05:42:27,708 INFO L112 eAbstractionObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-12-31 05:42:27,719 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:42:27,728 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-31 05:42:27,746 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-31 05:42:27,780 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:42:27,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:42:27,781 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:42:27,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:42:27,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:42:27,782 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:42:27,782 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:42:27,782 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:42:27,782 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:42:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-31 05:42:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 05:42:27,808 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:42:27,809 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 05:42:27,812 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:42:27,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:42:27,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1540372082, now seen corresponding path program 1 times [2018-12-31 05:42:27,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:42:27,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:42:27,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:27,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:42:27,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:42:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:42:28,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:42:28,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 05:42:28,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 05:42:28,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 05:42:28,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:42:28,027 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-12-31 05:42:28,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:42:28,183 INFO L93 Difference]: Finished difference Result 64 states and 101 transitions. [2018-12-31 05:42:28,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 05:42:28,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-31 05:42:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:42:28,192 INFO L225 Difference]: With dead ends: 64 [2018-12-31 05:42:28,192 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 05:42:28,196 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 [2018-12-31 05:42:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 05:42:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 05:42:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 05:42:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 05:42:28,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-31 05:42:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:42:28,223 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 05:42:28,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 05:42:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 05:42:28,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 05:42:28,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 05:42:28,346 INFO L444 ceAbstractionStarter]: At program point L11-1(lines 11 33) the Hoare annotation is: (or (<= 1 ULTIMATE.start_f_~z~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-12-31 05:42:28,346 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 05:42:28,347 INFO L444 ceAbstractionStarter]: At program point L4-2(line 19) the Hoare annotation is: (and (<= 1 ULTIMATE.start_f_~z~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) [2018-12-31 05:42:28,347 INFO L448 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2018-12-31 05:42:28,347 INFO L444 ceAbstractionStarter]: At program point L4-5(line 19) the Hoare annotation is: (and (<= 1 ULTIMATE.start_f_~z~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) [2018-12-31 05:42:28,347 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-31 05:42:28,347 INFO L448 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-12-31 05:42:28,347 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 05:42:28,348 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 31) no Hoare annotation was computed. [2018-12-31 05:42:28,349 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 22 32) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond 1) [2018-12-31 05:42:28,349 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 31) no Hoare annotation was computed. [2018-12-31 05:42:28,349 INFO L444 ceAbstractionStarter]: At program point L24-5(lines 22 32) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond 1) [2018-12-31 05:42:28,349 INFO L444 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: (<= 1 ULTIMATE.start_f_~z~0) [2018-12-31 05:42:28,349 INFO L448 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-12-31 05:42:28,349 INFO L444 ceAbstractionStarter]: At program point L16-6(line 16) the Hoare annotation is: (<= 1 ULTIMATE.start_f_~z~0) [2018-12-31 05:42:28,350 INFO L448 ceAbstractionStarter]: For program point L16-7(line 16) no Hoare annotation was computed. [2018-12-31 05:42:28,350 INFO L444 ceAbstractionStarter]: At program point L41(lines 34 42) the Hoare annotation is: (or (<= 1 ULTIMATE.start_f_~z~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) [2018-12-31 05:42:28,350 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 05:42:28,350 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-12-31 05:42:28,350 INFO L448 ceAbstractionStarter]: For program point L25-1(lines 25 26) no Hoare annotation was computed. [2018-12-31 05:42:28,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:42:28 BoogieIcfgContainer [2018-12-31 05:42:28,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:42:28,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:42:28,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:42:28,367 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:42:28,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:27" (3/4) ... [2018-12-31 05:42:28,371 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 05:42:28,383 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-31 05:42:28,384 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 05:42:28,462 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:42:28,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:42:28,463 INFO L168 Benchmark]: Toolchain (without parser) took 1892.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -129.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,465 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:42:28,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:42:28,466 INFO L168 Benchmark]: Boogie Preprocessor took 49.48 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,467 INFO L168 Benchmark]: RCFGBuilder took 685.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,467 INFO L168 Benchmark]: TraceAbstraction took 666.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,468 INFO L168 Benchmark]: Witness Printer took 95.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:28,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 58.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.48 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 685.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 666.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Witness Printer took 95.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= z && cond == 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 <= z || cond == 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: cond == 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= z && cond == 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: cond == 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 <= z || cond == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 2 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 69 SDslu, 22 SDs, 0 SdLazy, 16 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 20 NumberOfFragments, 40 HoareAnnotationTreeSize, 8 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...