./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer --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 91d2600fad1210650d8ad3da481cdcc11b280095 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:48:17,811 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:48:17,813 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:48:17,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:48:17,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:48:17,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:48:17,823 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:48:17,824 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:48:17,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:48:17,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:48:17,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:48:17,827 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:48:17,827 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:48:17,828 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:48:17,829 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:48:17,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:48:17,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:48:17,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:48:17,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:48:17,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:48:17,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:48:17,835 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:48:17,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:48:17,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:48:17,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:48:17,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:48:17,839 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:48:17,839 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:48:17,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:48:17,841 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:48:17,841 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:48:17,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:48:17,842 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:48:17,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:48:17,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:48:17,843 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:48:17,843 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 11:48:17,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:48:17,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:48:17,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:48:17,854 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:48:17,854 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:48:17,855 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:48:17,855 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:48:17,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:48:17,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:48:17,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:48:17,855 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:48:17,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:48:17,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:48:17,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:48:17,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:48:17,857 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:48:17,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:48:17,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:48:17,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:48:17,858 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:48:17,858 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:48:17,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:48:17,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:48:17,858 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer 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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2018-11-10 11:48:17,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:48:17,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:48:17,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:48:17,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:48:17,895 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:48:17,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 11:48:17,939 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/data/7f478754d/031b1d97d0e4465a885e4f90ef7891a9/FLAG9bacf8be9 [2018-11-10 11:48:18,337 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:48:18,338 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/sv-benchmarks/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 11:48:18,342 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/data/7f478754d/031b1d97d0e4465a885e4f90ef7891a9/FLAG9bacf8be9 [2018-11-10 11:48:18,354 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/data/7f478754d/031b1d97d0e4465a885e4f90ef7891a9 [2018-11-10 11:48:18,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:48:18,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:48:18,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:18,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:48:18,360 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:48:18,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da3d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18, skipping insertion in model container [2018-11-10 11:48:18,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:48:18,378 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:48:18,474 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:18,476 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:48:18,485 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:18,493 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:48:18,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18 WrapperNode [2018-11-10 11:48:18,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:18,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:48:18,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:48:18,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:48:18,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... [2018-11-10 11:48:18,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:48:18,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:48:18,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:48:18,515 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:48:18,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/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 [2018-11-10 11:48:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:48:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:48:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-11-10 11:48:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:48:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:48:18,724 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:48:18,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:18 BoogieIcfgContainer [2018-11-10 11:48:18,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:48:18,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:48:18,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:48:18,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:48:18,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:48:18" (1/3) ... [2018-11-10 11:48:18,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53161224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:18, skipping insertion in model container [2018-11-10 11:48:18,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:18" (2/3) ... [2018-11-10 11:48:18,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53161224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:18, skipping insertion in model container [2018-11-10 11:48:18,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:18" (3/3) ... [2018-11-10 11:48:18,730 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 11:48:18,735 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:48:18,740 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:48:18,751 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:48:18,776 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:48:18,777 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:48:18,777 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:48:18,777 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:48:18,777 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:48:18,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:48:18,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:48:18,778 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:48:18,778 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:48:18,792 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-10 11:48:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 11:48:18,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:18,798 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:18,800 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:18,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:18,805 INFO L82 PathProgramCache]: Analyzing trace with hash -854965079, now seen corresponding path program 1 times [2018-11-10 11:48:18,806 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:48:18,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:48:18,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:18,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:18,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:19,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:19,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:48:19,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:48:19,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:48:19,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:48:19,022 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2018-11-10 11:48:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:19,150 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2018-11-10 11:48:19,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:48:19,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-10 11:48:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:19,159 INFO L225 Difference]: With dead ends: 38 [2018-11-10 11:48:19,159 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 11:48:19,162 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:48:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 11:48:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-10 11:48:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 11:48:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-11-10 11:48:19,192 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2018-11-10 11:48:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:19,192 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-10 11:48:19,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:48:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2018-11-10 11:48:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 11:48:19,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:19,194 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:19,194 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:19,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1632999070, now seen corresponding path program 1 times [2018-11-10 11:48:19,195 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:48:19,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:48:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:19,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:19,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 11:48:19,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 11:48:19,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 11:48:19,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 11:48:19,222 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2018-11-10 11:48:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:19,246 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-11-10 11:48:19,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 11:48:19,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 11:48:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:19,247 INFO L225 Difference]: With dead ends: 34 [2018-11-10 11:48:19,247 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 11:48:19,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 11:48:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 11:48:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-11-10 11:48:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 11:48:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-11-10 11:48:19,251 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2018-11-10 11:48:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:19,252 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-11-10 11:48:19,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 11:48:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-10 11:48:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 11:48:19,253 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:19,253 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:19,253 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:19,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:19,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1746800232, now seen corresponding path program 1 times [2018-11-10 11:48:19,253 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:48:19,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:48:19,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:19,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 11:48:19,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:48:19,387 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:48:19,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:48:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 11:48:19,616 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 11:48:19,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-11-10 11:48:19,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 11:48:19,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 11:48:19,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-10 11:48:19,617 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 18 states. [2018-11-10 11:48:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:19,802 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2018-11-10 11:48:19,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 11:48:19,804 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2018-11-10 11:48:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:19,805 INFO L225 Difference]: With dead ends: 38 [2018-11-10 11:48:19,805 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 11:48:19,805 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2018-11-10 11:48:19,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 11:48:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2018-11-10 11:48:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 11:48:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2018-11-10 11:48:19,811 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 22 [2018-11-10 11:48:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:19,811 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2018-11-10 11:48:19,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 11:48:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-10 11:48:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:48:19,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:19,812 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:19,813 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:19,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:19,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1365148867, now seen corresponding path program 1 times [2018-11-10 11:48:19,813 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:48:19,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:48:19,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:19,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 11:48:19,852 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:48:19,852 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:48:19,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:19,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:48:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 11:48:19,894 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 11:48:19,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2018-11-10 11:48:19,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 11:48:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 11:48:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:48:19,895 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 7 states. [2018-11-10 11:48:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:19,930 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2018-11-10 11:48:19,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:48:19,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 11:48:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:19,930 INFO L225 Difference]: With dead ends: 27 [2018-11-10 11:48:19,931 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 11:48:19,931 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:48:19,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 11:48:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 11:48:19,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 11:48:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 11:48:19,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-10 11:48:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:19,932 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:48:19,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 11:48:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:48:19,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:48:19,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 11:48:19,982 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 11:48:19,982 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:48:19,982 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:48:19,982 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 11:48:19,982 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:48:19,982 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 32) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-10 11:48:19,983 INFO L421 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (<= 0 main_~n~0) [2018-11-10 11:48:19,983 INFO L425 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L421 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0) (<= (+ addition_~n 1) 0))) [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L421 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (< 0 addition_~n) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0))) [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 11:48:19,984 INFO L428 ceAbstractionStarter]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2018-11-10 11:48:19,985 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-10 11:48:19,985 INFO L425 ceAbstractionStarter]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2018-11-10 11:48:19,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:48:19 BoogieIcfgContainer [2018-11-10 11:48:19,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:48:19,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:48:19,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:48:19,988 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:48:19,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:18" (3/4) ... [2018-11-10 11:48:19,991 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:48:19,997 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 11:48:19,997 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 11:48:19,997 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2018-11-10 11:48:20,001 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 11:48:20,001 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 11:48:20,001 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 11:48:20,033 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6f0bf57b-2202-4066-9d32-a115d154a63e/bin-2019/uautomizer/witness.graphml [2018-11-10 11:48:20,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:48:20,033 INFO L168 Benchmark]: Toolchain (without parser) took 1677.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 959.1 MB in the beginning and 956.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 144.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:20,035 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:20,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:20,035 INFO L168 Benchmark]: Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:20,036 INFO L168 Benchmark]: RCFGBuilder took 210.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:20,036 INFO L168 Benchmark]: TraceAbstraction took 1261.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.1 MB in the end (delta: 167.7 MB). Peak memory consumption was 167.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:20,036 INFO L168 Benchmark]: Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 962.1 MB in the beginning and 956.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:20,038 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 210.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1261.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.1 MB in the end (delta: 167.7 MB). Peak memory consumption was 167.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 962.1 MB in the beginning and 956.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 70 SDslu, 214 SDs, 0 SdLazy, 267 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 52 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 8955 SizeOfPredicates, 9 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...