./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/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 d03876ec7c81cef1206e9d3a88b822f346950633 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:49:26,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:49:26,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:49:26,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:49:26,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:49:26,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:49:26,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:49:26,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:49:26,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:49:26,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:49:26,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:49:26,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:49:26,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:49:26,480 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:49:26,480 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:49:26,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:49:26,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:49:26,483 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:49:26,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:49:26,485 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:49:26,486 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:49:26,487 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:49:26,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:49:26,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:49:26,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:49:26,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:49:26,490 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:49:26,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:49:26,491 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:49:26,492 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:49:26,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:49:26,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:49:26,493 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:49:26,493 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:49:26,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:49:26,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:49:26,494 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 04:49:26,504 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:49:26,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:49:26,504 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:49:26,505 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:49:26,505 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:49:26,505 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:49:26,505 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 04:49:26,506 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:49:26,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:49:26,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:49:26,507 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:49:26,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:49:26,507 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:49:26,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:49:26,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:49:26,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:49:26,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:49:26,509 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 04:49:26,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:49:26,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:49:26,509 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_1411993e-ff20-4f3a-8b61-819698503306/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 -> d03876ec7c81cef1206e9d3a88b822f346950633 [2018-11-23 04:49:26,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:49:26,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:49:26,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:49:26,545 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:49:26,545 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:49:26,546 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc_true-unreach-call.i [2018-11-23 04:49:26,584 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/data/b1e8f8afa/3ff45d5c8cdb4c2d9c80fe78d4b3a187/FLAG5f2ed53da [2018-11-23 04:49:26,921 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:49:26,922 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc_true-unreach-call.i [2018-11-23 04:49:26,932 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/data/b1e8f8afa/3ff45d5c8cdb4c2d9c80fe78d4b3a187/FLAG5f2ed53da [2018-11-23 04:49:26,941 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/data/b1e8f8afa/3ff45d5c8cdb4c2d9c80fe78d4b3a187 [2018-11-23 04:49:26,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:49:26,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:49:26,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:49:26,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:49:26,946 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:49:26,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:26" (1/1) ... [2018-11-23 04:49:26,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28603259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:26, skipping insertion in model container [2018-11-23 04:49:26,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:26" (1/1) ... [2018-11-23 04:49:26,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:49:26,982 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:49:27,182 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:49:27,190 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:49:27,264 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:49:27,308 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:49:27,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27 WrapperNode [2018-11-23 04:49:27,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:49:27,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:49:27,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:49:27,309 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:49:27,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:49:27,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:49:27,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:49:27,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:49:27,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... [2018-11-23 04:49:27,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:49:27,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:49:27,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:49:27,357 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:49:27,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/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 [2018-11-23 04:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 04:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 04:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:49:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 04:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 04:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 04:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 04:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 04:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 04:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 04:49:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:49:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:49:27,396 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 04:49:27,581 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:49:27,582 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 04:49:27,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:27 BoogieIcfgContainer [2018-11-23 04:49:27,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:49:27,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:49:27,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:49:27,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:49:27,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:49:26" (1/3) ... [2018-11-23 04:49:27,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac371bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:27, skipping insertion in model container [2018-11-23 04:49:27,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:27" (2/3) ... [2018-11-23 04:49:27,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac371bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:27, skipping insertion in model container [2018-11-23 04:49:27,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:27" (3/3) ... [2018-11-23 04:49:27,587 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc_true-unreach-call.i [2018-11-23 04:49:27,611 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,611 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,613 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,613 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,613 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,613 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,615 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,615 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,616 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,617 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:49:27,630 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 04:49:27,630 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:49:27,636 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:49:27,645 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:49:27,660 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:49:27,660 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:49:27,660 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:49:27,660 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:49:27,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:49:27,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:49:27,661 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:49:27,661 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:49:27,661 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:49:27,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2018-11-23 04:49:27,740 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2018-11-23 04:49:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2018-11-23 04:49:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 04:49:27,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:27,754 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:27,756 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:27,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:27,759 INFO L82 PathProgramCache]: Analyzing trace with hash 244532871, now seen corresponding path program 1 times [2018-11-23 04:49:27,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:27,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:27,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:27,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:49:27,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:27,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:27,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:49:27,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:49:27,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:49:27,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:49:27,953 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2018-11-23 04:49:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:28,034 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2018-11-23 04:49:28,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 04:49:28,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-23 04:49:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:28,051 INFO L225 Difference]: With dead ends: 2491 [2018-11-23 04:49:28,052 INFO L226 Difference]: Without dead ends: 1126 [2018-11-23 04:49:28,053 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 [2018-11-23 04:49:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2018-11-23 04:49:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2018-11-23 04:49:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2018-11-23 04:49:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2018-11-23 04:49:28,117 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2018-11-23 04:49:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:28,118 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2018-11-23 04:49:28,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:49:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2018-11-23 04:49:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 04:49:28,120 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:28,120 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:28,121 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:28,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:28,121 INFO L82 PathProgramCache]: Analyzing trace with hash 968273041, now seen corresponding path program 1 times [2018-11-23 04:49:28,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:28,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:28,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:49:28,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:28,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:28,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 04:49:28,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:49:28,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:49:28,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:49:28,199 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2018-11-23 04:49:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:28,323 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2018-11-23 04:49:28,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 04:49:28,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-23 04:49:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:28,330 INFO L225 Difference]: With dead ends: 1166 [2018-11-23 04:49:28,330 INFO L226 Difference]: Without dead ends: 1042 [2018-11-23 04:49:28,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:49:28,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2018-11-23 04:49:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2018-11-23 04:49:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2018-11-23 04:49:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2018-11-23 04:49:28,365 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2018-11-23 04:49:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:28,366 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2018-11-23 04:49:28,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:49:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2018-11-23 04:49:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:49:28,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:28,369 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:28,369 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:28,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:28,369 INFO L82 PathProgramCache]: Analyzing trace with hash -747764909, now seen corresponding path program 1 times [2018-11-23 04:49:28,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:28,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:28,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:49:28,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:28,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:28,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 04:49:28,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 04:49:28,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 04:49:28,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 04:49:28,447 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2018-11-23 04:49:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:28,554 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2018-11-23 04:49:28,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 04:49:28,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-11-23 04:49:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:28,558 INFO L225 Difference]: With dead ends: 818 [2018-11-23 04:49:28,558 INFO L226 Difference]: Without dead ends: 706 [2018-11-23 04:49:28,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:49:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2018-11-23 04:49:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2018-11-23 04:49:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2018-11-23 04:49:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2018-11-23 04:49:28,571 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2018-11-23 04:49:28,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:28,571 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2018-11-23 04:49:28,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 04:49:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2018-11-23 04:49:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 04:49:28,573 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:28,573 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:28,573 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:28,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:28,574 INFO L82 PathProgramCache]: Analyzing trace with hash 832052697, now seen corresponding path program 1 times [2018-11-23 04:49:28,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:28,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:28,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:49:28,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:28,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:28,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:28,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 04:49:28,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 04:49:28,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 04:49:28,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 04:49:28,646 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2018-11-23 04:49:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:28,707 INFO L93 Difference]: Finished difference Result 1170 states and 3449 transitions. [2018-11-23 04:49:28,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 04:49:28,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-23 04:49:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:28,710 INFO L225 Difference]: With dead ends: 1170 [2018-11-23 04:49:28,710 INFO L226 Difference]: Without dead ends: 670 [2018-11-23 04:49:28,710 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:49:28,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-11-23 04:49:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2018-11-23 04:49:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-11-23 04:49:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1961 transitions. [2018-11-23 04:49:28,722 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1961 transitions. Word has length 31 [2018-11-23 04:49:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:28,722 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1961 transitions. [2018-11-23 04:49:28,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 04:49:28,722 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1961 transitions. [2018-11-23 04:49:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 04:49:28,723 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:28,723 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:28,724 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:28,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash 735486425, now seen corresponding path program 2 times [2018-11-23 04:49:28,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:28,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:28,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:49:28,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:28,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:28,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 04:49:28,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:49:28,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:49:28,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:49:28,804 INFO L87 Difference]: Start difference. First operand 670 states and 1961 transitions. Second operand 7 states. [2018-11-23 04:49:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:28,999 INFO L93 Difference]: Finished difference Result 1054 states and 3145 transitions. [2018-11-23 04:49:28,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 04:49:29,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-23 04:49:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:29,003 INFO L225 Difference]: With dead ends: 1054 [2018-11-23 04:49:29,003 INFO L226 Difference]: Without dead ends: 650 [2018-11-23 04:49:29,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 04:49:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2018-11-23 04:49:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2018-11-23 04:49:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2018-11-23 04:49:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1909 transitions. [2018-11-23 04:49:29,020 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1909 transitions. Word has length 31 [2018-11-23 04:49:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:29,021 INFO L480 AbstractCegarLoop]: Abstraction has 650 states and 1909 transitions. [2018-11-23 04:49:29,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:49:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1909 transitions. [2018-11-23 04:49:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 04:49:29,022 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:49:29,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:49:29,023 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:49:29,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:49:29,023 INFO L82 PathProgramCache]: Analyzing trace with hash 2049017953, now seen corresponding path program 3 times [2018-11-23 04:49:29,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:49:29,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:49:29,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:29,026 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:49:29,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:49:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:49:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:49:29,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:49:29,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 04:49:29,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:49:29,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:49:29,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:49:29,111 INFO L87 Difference]: Start difference. First operand 650 states and 1909 transitions. Second operand 7 states. [2018-11-23 04:49:29,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:49:29,246 INFO L93 Difference]: Finished difference Result 522 states and 1493 transitions. [2018-11-23 04:49:29,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 04:49:29,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-23 04:49:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:49:29,247 INFO L225 Difference]: With dead ends: 522 [2018-11-23 04:49:29,247 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 04:49:29,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 04:49:29,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 04:49:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 04:49:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 04:49:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:49:29,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-23 04:49:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:49:29,249 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:49:29,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:49:29,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:49:29,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:49:29,252 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 04:49:29,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:49:29 BasicIcfg [2018-11-23 04:49:29,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:49:29,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:49:29,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:49:29,254 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:49:29,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:27" (3/4) ... [2018-11-23 04:49:29,258 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:49:29,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 04:49:29,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 04:49:29,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 04:49:29,268 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 04:49:29,268 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 04:49:29,305 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1411993e-ff20-4f3a-8b61-819698503306/bin-2019/uautomizer/witness.graphml [2018-11-23 04:49:29,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:49:29,305 INFO L168 Benchmark]: Toolchain (without parser) took 2361.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 956.4 MB in the beginning and 863.4 MB in the end (delta: 93.0 MB). Peak memory consumption was 251.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,306 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 04:49:29,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:49:29,307 INFO L168 Benchmark]: Boogie Preprocessor took 17.31 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,307 INFO L168 Benchmark]: RCFGBuilder took 225.74 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,308 INFO L168 Benchmark]: TraceAbstraction took 1670.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 866.8 MB in the end (delta: 244.0 MB). Peak memory consumption was 244.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,308 INFO L168 Benchmark]: Witness Printer took 51.12 ms. Allocated memory is still 1.2 GB. Free memory was 866.8 MB in the beginning and 863.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:49:29,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 364.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.31 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 225.74 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1670.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 866.8 MB in the end (delta: 244.0 MB). Peak memory consumption was 244.0 MB. Max. memory is 11.5 GB. * Witness Printer took 51.12 ms. Allocated memory is still 1.2 GB. Free memory was 866.8 MB in the beginning and 863.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 7 procedures, 69 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 359 SDtfs, 400 SDslu, 937 SDs, 0 SdLazy, 97 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 11766 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...