./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/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 1d08478f13fb71f111fd419179c47ab65881301c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 12:43:20,487 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 12:43:20,488 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 12:43:20,494 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 12:43:20,494 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 12:43:20,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 12:43:20,495 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 12:43:20,496 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 12:43:20,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 12:43:20,497 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 12:43:20,498 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 12:43:20,498 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 12:43:20,498 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 12:43:20,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 12:43:20,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 12:43:20,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 12:43:20,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 12:43:20,501 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 12:43:20,502 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 12:43:20,503 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 12:43:20,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 12:43:20,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 12:43:20,505 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 12:43:20,505 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 12:43:20,505 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 12:43:20,506 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 12:43:20,506 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 12:43:20,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 12:43:20,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 12:43:20,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 12:43:20,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 12:43:20,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 12:43:20,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 12:43:20,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 12:43:20,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 12:43:20,509 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 12:43:20,509 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 12:43:20,516 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 12:43:20,516 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 12:43:20,517 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 12:43:20,517 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 12:43:20,517 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 12:43:20,517 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 12:43:20,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 12:43:20,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 12:43:20,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 12:43:20,519 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 12:43:20,520 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 12:43:20,520 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 12:43:20,521 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 12:43:20,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 12:43:20,521 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_7f57cbe9-5fa9-425b-b8c7-035daadb6896/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 -> 1d08478f13fb71f111fd419179c47ab65881301c [2018-12-08 12:43:20,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 12:43:20,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 12:43:20,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 12:43:20,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 12:43:20,552 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 12:43:20,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-08 12:43:20,591 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/data/62d5db123/484f75539a51491fa155af1bad0474c0/FLAG32aa98d63 [2018-12-08 12:43:21,029 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 12:43:21,030 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-08 12:43:21,037 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/data/62d5db123/484f75539a51491fa155af1bad0474c0/FLAG32aa98d63 [2018-12-08 12:43:21,046 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/data/62d5db123/484f75539a51491fa155af1bad0474c0 [2018-12-08 12:43:21,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 12:43:21,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 12:43:21,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 12:43:21,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 12:43:21,051 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 12:43:21,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ef7631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21, skipping insertion in model container [2018-12-08 12:43:21,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 12:43:21,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 12:43:21,234 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:43:21,241 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 12:43:21,298 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:43:21,324 INFO L195 MainTranslator]: Completed translation [2018-12-08 12:43:21,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21 WrapperNode [2018-12-08 12:43:21,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 12:43:21,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 12:43:21,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 12:43:21,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 12:43:21,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 12:43:21,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 12:43:21,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 12:43:21,350 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 12:43:21,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... [2018-12-08 12:43:21,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 12:43:21,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 12:43:21,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 12:43:21,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 12:43:21,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/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 [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2018-12-08 12:43:21,393 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 12:43:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 12:43:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 12:43:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2018-12-08 12:43:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2018-12-08 12:43:21,394 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 12:43:21,459 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2018-12-08 12:43:21,460 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2018-12-08 12:43:21,537 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2018-12-08 12:43:21,542 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 12:43:21,542 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 12:43:21,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:43:21 BoogieIcfgContainer [2018-12-08 12:43:21,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 12:43:21,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 12:43:21,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 12:43:21,546 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 12:43:21,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 12:43:21" (1/3) ... [2018-12-08 12:43:21,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2725118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 12:43:21, skipping insertion in model container [2018-12-08 12:43:21,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:43:21" (2/3) ... [2018-12-08 12:43:21,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2725118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 12:43:21, skipping insertion in model container [2018-12-08 12:43:21,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:43:21" (3/3) ... [2018-12-08 12:43:21,548 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock_true-unreach-call.i [2018-12-08 12:43:21,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,571 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,571 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,571 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,572 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,572 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,573 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,573 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,573 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,573 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,573 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,574 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,574 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,574 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,574 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,575 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,575 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,575 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,575 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,575 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,576 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,576 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,576 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,576 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,576 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,577 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,577 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 12:43:21,597 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 12:43:21,597 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 12:43:21,602 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 12:43:21,611 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 12:43:21,625 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 12:43:21,626 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 12:43:21,626 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 12:43:21,626 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 12:43:21,626 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 12:43:21,626 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 12:43:21,626 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 12:43:21,626 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 12:43:21,627 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 12:43:21,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82places, 91 transitions [2018-12-08 12:43:22,387 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22596 states. [2018-12-08 12:43:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 22596 states. [2018-12-08 12:43:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 12:43:22,394 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:22,394 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] [2018-12-08 12:43:22,395 INFO L423 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:22,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:22,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1971274062, now seen corresponding path program 1 times [2018-12-08 12:43:22,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:22,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:22,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:22,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:43:22,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:22,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:22,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 12:43:22,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 12:43:22,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 12:43:22,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 12:43:22,526 INFO L87 Difference]: Start difference. First operand 22596 states. Second operand 4 states. [2018-12-08 12:43:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:22,827 INFO L93 Difference]: Finished difference Result 53210 states and 199742 transitions. [2018-12-08 12:43:22,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 12:43:22,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 12:43:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:23,025 INFO L225 Difference]: With dead ends: 53210 [2018-12-08 12:43:23,025 INFO L226 Difference]: Without dead ends: 38180 [2018-12-08 12:43:23,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:23,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38180 states. [2018-12-08 12:43:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38180 to 20681. [2018-12-08 12:43:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2018-12-08 12:43:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 79025 transitions. [2018-12-08 12:43:23,640 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 79025 transitions. Word has length 23 [2018-12-08 12:43:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:23,641 INFO L480 AbstractCegarLoop]: Abstraction has 20681 states and 79025 transitions. [2018-12-08 12:43:23,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 12:43:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 79025 transitions. [2018-12-08 12:43:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 12:43:23,643 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:23,643 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] [2018-12-08 12:43:23,643 INFO L423 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:23,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:23,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1843184933, now seen corresponding path program 1 times [2018-12-08 12:43:23,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:23,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:23,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:23,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:43:23,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:23,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:23,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 12:43:23,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 12:43:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 12:43:23,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:23,704 INFO L87 Difference]: Start difference. First operand 20681 states and 79025 transitions. Second operand 5 states. [2018-12-08 12:43:23,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:23,822 INFO L93 Difference]: Finished difference Result 18941 states and 68442 transitions. [2018-12-08 12:43:23,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 12:43:23,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-08 12:43:23,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:23,858 INFO L225 Difference]: With dead ends: 18941 [2018-12-08 12:43:23,858 INFO L226 Difference]: Without dead ends: 18701 [2018-12-08 12:43:23,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2018-12-08 12:43:24,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2018-12-08 12:43:24,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18701 states. [2018-12-08 12:43:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 67574 transitions. [2018-12-08 12:43:24,099 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 67574 transitions. Word has length 25 [2018-12-08 12:43:24,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:24,099 INFO L480 AbstractCegarLoop]: Abstraction has 18701 states and 67574 transitions. [2018-12-08 12:43:24,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 12:43:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 67574 transitions. [2018-12-08 12:43:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 12:43:24,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:24,101 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] [2018-12-08 12:43:24,101 INFO L423 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:24,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:24,101 INFO L82 PathProgramCache]: Analyzing trace with hash 714069777, now seen corresponding path program 2 times [2018-12-08 12:43:24,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:24,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:24,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:43:24,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:24,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:24,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 12:43:24,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 12:43:24,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 12:43:24,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 12:43:24,133 INFO L87 Difference]: Start difference. First operand 18701 states and 67574 transitions. Second operand 4 states. [2018-12-08 12:43:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:24,264 INFO L93 Difference]: Finished difference Result 17297 states and 57246 transitions. [2018-12-08 12:43:24,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 12:43:24,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-08 12:43:24,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:24,287 INFO L225 Difference]: With dead ends: 17297 [2018-12-08 12:43:24,287 INFO L226 Difference]: Without dead ends: 16721 [2018-12-08 12:43:24,287 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 12:43:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16721 states. [2018-12-08 12:43:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16721 to 12992. [2018-12-08 12:43:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12992 states. [2018-12-08 12:43:24,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12992 states to 12992 states and 43427 transitions. [2018-12-08 12:43:24,454 INFO L78 Accepts]: Start accepts. Automaton has 12992 states and 43427 transitions. Word has length 25 [2018-12-08 12:43:24,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:24,455 INFO L480 AbstractCegarLoop]: Abstraction has 12992 states and 43427 transitions. [2018-12-08 12:43:24,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 12:43:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12992 states and 43427 transitions. [2018-12-08 12:43:24,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:43:24,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:24,456 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] [2018-12-08 12:43:24,457 INFO L423 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:24,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:24,457 INFO L82 PathProgramCache]: Analyzing trace with hash 47924841, now seen corresponding path program 1 times [2018-12-08 12:43:24,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:24,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:24,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,459 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 12:43:24,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:24,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:24,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 12:43:24,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 12:43:24,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 12:43:24,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 12:43:24,479 INFO L87 Difference]: Start difference. First operand 12992 states and 43427 transitions. Second operand 4 states. [2018-12-08 12:43:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:24,552 INFO L93 Difference]: Finished difference Result 14324 states and 47560 transitions. [2018-12-08 12:43:24,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 12:43:24,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-08 12:43:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:24,563 INFO L225 Difference]: With dead ends: 14324 [2018-12-08 12:43:24,564 INFO L226 Difference]: Without dead ends: 8831 [2018-12-08 12:43:24,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:24,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2018-12-08 12:43:24,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 7334. [2018-12-08 12:43:24,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7334 states. [2018-12-08 12:43:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7334 states to 7334 states and 23840 transitions. [2018-12-08 12:43:24,652 INFO L78 Accepts]: Start accepts. Automaton has 7334 states and 23840 transitions. Word has length 29 [2018-12-08 12:43:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:24,652 INFO L480 AbstractCegarLoop]: Abstraction has 7334 states and 23840 transitions. [2018-12-08 12:43:24,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 12:43:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7334 states and 23840 transitions. [2018-12-08 12:43:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 12:43:24,656 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:24,656 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, 1, 1, 1] [2018-12-08 12:43:24,656 INFO L423 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:24,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:24,656 INFO L82 PathProgramCache]: Analyzing trace with hash 164056283, now seen corresponding path program 1 times [2018-12-08 12:43:24,656 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:24,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:24,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:43:24,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:24,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:24,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 12:43:24,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 12:43:24,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 12:43:24,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:24,692 INFO L87 Difference]: Start difference. First operand 7334 states and 23840 transitions. Second operand 5 states. [2018-12-08 12:43:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:24,728 INFO L93 Difference]: Finished difference Result 8558 states and 27434 transitions. [2018-12-08 12:43:24,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 12:43:24,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-08 12:43:24,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:24,738 INFO L225 Difference]: With dead ends: 8558 [2018-12-08 12:43:24,738 INFO L226 Difference]: Without dead ends: 7379 [2018-12-08 12:43:24,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:24,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2018-12-08 12:43:24,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 6803. [2018-12-08 12:43:24,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6803 states. [2018-12-08 12:43:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 22284 transitions. [2018-12-08 12:43:24,812 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 22284 transitions. Word has length 37 [2018-12-08 12:43:24,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:24,813 INFO L480 AbstractCegarLoop]: Abstraction has 6803 states and 22284 transitions. [2018-12-08 12:43:24,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 12:43:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 22284 transitions. [2018-12-08 12:43:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 12:43:24,815 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 12:43:24,815 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, 1, 1, 1] [2018-12-08 12:43:24,816 INFO L423 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 12:43:24,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:43:24,816 INFO L82 PathProgramCache]: Analyzing trace with hash -288917643, now seen corresponding path program 2 times [2018-12-08 12:43:24,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 12:43:24,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 12:43:24,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 12:43:24,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 12:43:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:43:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:43:24,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 12:43:24,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 12:43:24,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 12:43:24,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 12:43:24,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:24,860 INFO L87 Difference]: Start difference. First operand 6803 states and 22284 transitions. Second operand 5 states. [2018-12-08 12:43:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 12:43:24,882 INFO L93 Difference]: Finished difference Result 1907 states and 5204 transitions. [2018-12-08 12:43:24,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 12:43:24,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-08 12:43:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 12:43:24,882 INFO L225 Difference]: With dead ends: 1907 [2018-12-08 12:43:24,882 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 12:43:24,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 12:43:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 12:43:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 12:43:24,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 12:43:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 12:43:24,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-12-08 12:43:24,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 12:43:24,883 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 12:43:24,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 12:43:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 12:43:24,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 12:43:24,885 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 12:43:24,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 12:43:24 BasicIcfg [2018-12-08 12:43:24,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 12:43:24,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 12:43:24,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 12:43:24,887 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 12:43:24,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:43:21" (3/4) ... [2018-12-08 12:43:24,889 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 12:43:24,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2018-12-08 12:43:24,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2018-12-08 12:43:24,896 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-08 12:43:24,896 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 12:43:24,919 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7f57cbe9-5fa9-425b-b8c7-035daadb6896/bin-2019/uautomizer/witness.graphml [2018-12-08 12:43:24,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 12:43:24,919 INFO L168 Benchmark]: Toolchain (without parser) took 3871.24 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 553.1 MB). Free memory was 951.7 MB in the beginning and 769.3 MB in the end (delta: 182.4 MB). Peak memory consumption was 735.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,920 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:43:24,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 12:43:24,921 INFO L168 Benchmark]: Boogie Preprocessor took 12.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,921 INFO L168 Benchmark]: RCFGBuilder took 180.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,921 INFO L168 Benchmark]: TraceAbstraction took 3343.08 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 442.0 MB). Free memory was 1.1 GB in the beginning and 779.6 MB in the end (delta: 288.2 MB). Peak memory consumption was 730.1 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,922 INFO L168 Benchmark]: Witness Printer took 32.58 ms. Allocated memory is still 1.6 GB. Free memory was 779.6 MB in the beginning and 769.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-12-08 12:43:24,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3343.08 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 442.0 MB). Free memory was 1.1 GB in the beginning and 779.6 MB in the end (delta: 288.2 MB). Peak memory consumption was 730.1 MB. Max. memory is 11.5 GB. * Witness Printer took 32.58 ms. Allocated memory is still 1.6 GB. Free memory was 779.6 MB in the beginning and 769.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 3 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 786 SDtfs, 748 SDslu, 990 SDs, 0 SdLazy, 167 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22596occurred 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: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 23301 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 12148 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...