./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt_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_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40252da08aa7cf58daae88de6ee869f5d708ae31 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:29:03,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:29:03,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:29:03,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:29:03,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:29:03,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:29:03,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:29:03,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:29:03,328 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:29:03,328 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:29:03,329 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:29:03,329 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:29:03,330 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:29:03,330 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:29:03,331 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:29:03,332 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:29:03,332 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:29:03,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:29:03,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:29:03,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:29:03,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:29:03,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:29:03,339 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:29:03,339 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:29:03,339 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:29:03,340 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:29:03,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:29:03,341 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:29:03,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:29:03,343 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:29:03,343 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:29:03,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:29:03,343 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:29:03,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:29:03,344 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:29:03,344 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:29:03,345 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 01:29:03,354 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:29:03,354 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:29:03,355 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:29:03,355 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:29:03,355 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 01:29:03,355 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 01:29:03,355 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 01:29:03,355 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 01:29:03,355 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 01:29:03,356 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:29:03,356 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:29:03,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:29:03,357 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:29:03,357 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 01:29:03,358 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan 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 -> Taipan 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 -> 40252da08aa7cf58daae88de6ee869f5d708ae31 [2018-11-23 01:29:03,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:29:03,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:29:03,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:29:03,391 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:29:03,391 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:29:03,391 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt_true-unreach-call.i [2018-11-23 01:29:03,427 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/data/c5ad73f90/6e20f7b5242a40bbae938f6eb23f2519/FLAG81c5b38f6 [2018-11-23 01:29:03,784 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:29:03,785 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/sv-benchmarks/c/pthread-wmm/safe007_pso.opt_true-unreach-call.i [2018-11-23 01:29:03,793 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/data/c5ad73f90/6e20f7b5242a40bbae938f6eb23f2519/FLAG81c5b38f6 [2018-11-23 01:29:03,801 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/data/c5ad73f90/6e20f7b5242a40bbae938f6eb23f2519 [2018-11-23 01:29:03,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:29:03,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:29:03,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:29:03,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:29:03,808 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:29:03,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:29:03" (1/1) ... [2018-11-23 01:29:03,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c24d0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:03, skipping insertion in model container [2018-11-23 01:29:03,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:29:03" (1/1) ... [2018-11-23 01:29:03,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:29:03,854 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:29:04,082 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:29:04,090 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:29:04,177 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:29:04,223 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:29:04,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04 WrapperNode [2018-11-23 01:29:04,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:29:04,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:29:04,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:29:04,225 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:29:04,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:29:04,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:29:04,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:29:04,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:29:04,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... [2018-11-23 01:29:04,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:29:04,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:29:04,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:29:04,279 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:29:04,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/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 01:29:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 01:29:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 01:29:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 01:29:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 01:29:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 01:29:04,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 01:29:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 01:29:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 01:29:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 01:29:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 01:29:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 01:29:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:29:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:29:04,334 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 01:29:04,578 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:29:04,579 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 01:29:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:29:04 BoogieIcfgContainer [2018-11-23 01:29:04,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:29:04,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:29:04,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:29:04,581 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:29:04,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:29:03" (1/3) ... [2018-11-23 01:29:04,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf6258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:29:04, skipping insertion in model container [2018-11-23 01:29:04,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:29:04" (2/3) ... [2018-11-23 01:29:04,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf6258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:29:04, skipping insertion in model container [2018-11-23 01:29:04,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:29:04" (3/3) ... [2018-11-23 01:29:04,583 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt_true-unreach-call.i [2018-11-23 01:29:04,610 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,611 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,612 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 01:29:04,625 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 01:29:04,625 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:29:04,631 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 01:29:04,640 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 01:29:04,657 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:29:04,658 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:29:04,658 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:29:04,658 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:29:04,658 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:29:04,658 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:29:04,658 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:29:04,658 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:29:04,664 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2018-11-23 01:29:04,745 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2018-11-23 01:29:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2018-11-23 01:29:04,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 01:29:04,760 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:04,761 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 01:29:04,763 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:04,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:04,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1011204503, now seen corresponding path program 1 times [2018-11-23 01:29:04,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:04,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:04,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:29:04,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:04,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:04,947 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 01:29:04,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:04,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:29:04,950 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:04,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 01:29:04,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:29:04,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:29:04,968 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2018-11-23 01:29:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:05,044 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2018-11-23 01:29:05,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:29:05,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-23 01:29:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:05,066 INFO L225 Difference]: With dead ends: 2494 [2018-11-23 01:29:05,066 INFO L226 Difference]: Without dead ends: 1129 [2018-11-23 01:29:05,067 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 01:29:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2018-11-23 01:29:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2018-11-23 01:29:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2018-11-23 01:29:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2018-11-23 01:29:05,147 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2018-11-23 01:29:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:05,147 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2018-11-23 01:29:05,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 01:29:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2018-11-23 01:29:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 01:29:05,150 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:05,151 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, 1] [2018-11-23 01:29:05,151 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:05,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:05,151 INFO L82 PathProgramCache]: Analyzing trace with hash -52650827, now seen corresponding path program 1 times [2018-11-23 01:29:05,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:05,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:29:05,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,157 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:05,236 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 01:29:05,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:05,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 01:29:05,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:05,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:29:05,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:29:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:29:05,238 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2018-11-23 01:29:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:05,302 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2018-11-23 01:29:05,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 01:29:05,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-23 01:29:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:05,308 INFO L225 Difference]: With dead ends: 1169 [2018-11-23 01:29:05,308 INFO L226 Difference]: Without dead ends: 1045 [2018-11-23 01:29:05,309 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 01:29:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-11-23 01:29:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2018-11-23 01:29:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-11-23 01:29:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2018-11-23 01:29:05,338 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2018-11-23 01:29:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:05,338 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2018-11-23 01:29:05,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:29:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2018-11-23 01:29:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 01:29:05,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:05,341 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, 1, 1] [2018-11-23 01:29:05,341 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:05,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:05,342 INFO L82 PathProgramCache]: Analyzing trace with hash -68156749, now seen corresponding path program 1 times [2018-11-23 01:29:05,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:05,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:29:05,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,346 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:05,447 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 01:29:05,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:05,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 01:29:05,447 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:05,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 01:29:05,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 01:29:05,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 01:29:05,448 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2018-11-23 01:29:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:05,533 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2018-11-23 01:29:05,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:29:05,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-23 01:29:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:05,535 INFO L225 Difference]: With dead ends: 821 [2018-11-23 01:29:05,536 INFO L226 Difference]: Without dead ends: 709 [2018-11-23 01:29:05,536 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 01:29:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-11-23 01:29:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2018-11-23 01:29:05,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2018-11-23 01:29:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2018-11-23 01:29:05,549 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2018-11-23 01:29:05,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:05,549 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2018-11-23 01:29:05,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 01:29:05,549 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2018-11-23 01:29:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 01:29:05,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:05,551 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, 1, 1, 1] [2018-11-23 01:29:05,551 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:05,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:05,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1158860001, now seen corresponding path program 1 times [2018-11-23 01:29:05,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:05,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:29:05,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,554 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:05,664 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 01:29:05,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:05,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 01:29:05,664 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:05,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 01:29:05,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 01:29:05,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 01:29:05,665 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2018-11-23 01:29:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:05,894 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2018-11-23 01:29:05,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 01:29:05,895 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-23 01:29:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:05,898 INFO L225 Difference]: With dead ends: 1109 [2018-11-23 01:29:05,898 INFO L226 Difference]: Without dead ends: 593 [2018-11-23 01:29:05,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-23 01:29:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2018-11-23 01:29:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2018-11-23 01:29:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-11-23 01:29:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2018-11-23 01:29:05,915 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2018-11-23 01:29:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:05,916 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2018-11-23 01:29:05,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 01:29:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2018-11-23 01:29:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 01:29:05,917 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:05,917 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, 1, 1, 1] [2018-11-23 01:29:05,920 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:05,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:05,921 INFO L82 PathProgramCache]: Analyzing trace with hash -703513849, now seen corresponding path program 2 times [2018-11-23 01:29:05,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:05,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:29:05,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:05,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:06,011 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 01:29:06,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:06,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 01:29:06,011 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:06,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 01:29:06,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 01:29:06,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 01:29:06,012 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 7 states. [2018-11-23 01:29:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:06,109 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2018-11-23 01:29:06,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:29:06,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-23 01:29:06,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:06,112 INFO L225 Difference]: With dead ends: 977 [2018-11-23 01:29:06,112 INFO L226 Difference]: Without dead ends: 557 [2018-11-23 01:29:06,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 01:29:06,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-23 01:29:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2018-11-23 01:29:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2018-11-23 01:29:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2018-11-23 01:29:06,139 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2018-11-23 01:29:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:06,139 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2018-11-23 01:29:06,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 01:29:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2018-11-23 01:29:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 01:29:06,140 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:29:06,140 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, 1, 1, 1] [2018-11-23 01:29:06,140 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:29:06,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:29:06,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1434143397, now seen corresponding path program 3 times [2018-11-23 01:29:06,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 01:29:06,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:06,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 01:29:06,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:29:06,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 01:29:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:29:06,227 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 01:29:06,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:29:06,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 01:29:06,227 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 01:29:06,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 01:29:06,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 01:29:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 01:29:06,228 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 7 states. [2018-11-23 01:29:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:29:06,289 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2018-11-23 01:29:06,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:29:06,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-23 01:29:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:29:06,290 INFO L225 Difference]: With dead ends: 429 [2018-11-23 01:29:06,290 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 01:29:06,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 01:29:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 01:29:06,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 01:29:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 01:29:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:29:06,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-23 01:29:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:29:06,291 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:29:06,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 01:29:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:29:06,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:29:06,294 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 01:29:06,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:29:06 BasicIcfg [2018-11-23 01:29:06,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:29:06,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:29:06,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:29:06,296 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:29:06,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:29:04" (3/4) ... [2018-11-23 01:29:06,299 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:29:06,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 01:29:06,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 01:29:06,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 01:29:06,308 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 01:29:06,309 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 01:29:06,343 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f34a708b-3a01-4246-9e81-e1cec45d4f47/bin-2019/utaipan/witness.graphml [2018-11-23 01:29:06,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:29:06,344 INFO L168 Benchmark]: Toolchain (without parser) took 2539.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 01:29:06,345 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:29:06,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-23 01:29:06,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 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 01:29:06,346 INFO L168 Benchmark]: Boogie Preprocessor took 19.34 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:29:06,346 INFO L168 Benchmark]: RCFGBuilder took 299.78 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-23 01:29:06,346 INFO L168 Benchmark]: TraceAbstraction took 1715.74 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: -7.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:29:06,347 INFO L168 Benchmark]: Witness Printer took 47.60 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-23 01:29:06,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 419.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.99 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 19.34 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 299.78 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1715.74 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: -7.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 47.60 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: 5.2 MB). Peak memory consumption was 5.2 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, 72 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 489 SDslu, 847 SDs, 0 SdLazy, 112 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred 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, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17253 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...