./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_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/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_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/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 [2018-12-02 14:33:26,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:33:26,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:33:26,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:33:26,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:33:26,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:33:26,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:33:26,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:33:26,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:33:26,042 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:33:26,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:33:26,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:33:26,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:33:26,044 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:33:26,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:33:26,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:33:26,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:33:26,046 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:33:26,047 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:33:26,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:33:26,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:33:26,049 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:33:26,050 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:33:26,050 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:33:26,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:33:26,051 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:33:26,052 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:33:26,052 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:33:26,052 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:33:26,053 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:33:26,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:33:26,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:33:26,054 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:33:26,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:33:26,054 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:33:26,055 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:33:26,055 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 14:33:26,062 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:33:26,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:33:26,063 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:33:26,063 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 14:33:26,063 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 14:33:26,063 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 14:33:26,064 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:33:26,064 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:33:26,065 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:33:26,065 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:33:26,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:33:26,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:33:26,067 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_b42acaa6-bf4a-4255-85c8-729ae06be7a1/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 [2018-12-02 14:33:26,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:33:26,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:33:26,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:33:26,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:33:26,094 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:33:26,094 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-02 14:33:26,130 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/data/bbde2ae63/0b25550cca0a4627b4c3bca88fe53634/FLAG40f67d520 [2018-12-02 14:33:26,577 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:33:26,577 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-02 14:33:26,584 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/data/bbde2ae63/0b25550cca0a4627b4c3bca88fe53634/FLAG40f67d520 [2018-12-02 14:33:26,592 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/data/bbde2ae63/0b25550cca0a4627b4c3bca88fe53634 [2018-12-02 14:33:26,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:33:26,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:33:26,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:33:26,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:33:26,597 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:33:26,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,600 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 02.12 02:33:26, skipping insertion in model container [2018-12-02 14:33:26,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:33:26,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:33:26,774 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:33:26,782 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:33:26,847 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:33:26,894 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:33:26,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26 WrapperNode [2018-12-02 14:33:26,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:33:26,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:33:26,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:33:26,896 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:33:26,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:33:26,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:33:26,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:33:26,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:33:26,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... [2018-12-02 14:33:26,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:33:26,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:33:26,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:33:26,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:33:26,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/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 [2018-12-02 14:33:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 14:33:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 14:33:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 14:33:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2018-12-02 14:33:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2018-12-02 14:33:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 14:33:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:33:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:33:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2018-12-02 14:33:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2018-12-02 14:33:26,998 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 14:33:27,075 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2018-12-02 14:33:27,076 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2018-12-02 14:33:27,162 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2018-12-02 14:33:27,167 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:33:27,167 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 14:33:27,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:27 BoogieIcfgContainer [2018-12-02 14:33:27,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:33:27,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 14:33:27,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 14:33:27,170 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 14:33:27,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:33:26" (1/3) ... [2018-12-02 14:33:27,171 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 02.12 02:33:27, skipping insertion in model container [2018-12-02 14:33:27,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:33:26" (2/3) ... [2018-12-02 14:33:27,171 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 02.12 02:33:27, skipping insertion in model container [2018-12-02 14:33:27,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:27" (3/3) ... [2018-12-02 14:33:27,172 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock_true-unreach-call.i [2018-12-02 14:33:27,193 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,193 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,193 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,194 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,194 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,194 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,194 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,194 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,195 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,196 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,196 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,196 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,196 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,196 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,197 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,198 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,198 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,198 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,198 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 14:33:27,225 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 14:33:27,225 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 14:33:27,230 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-02 14:33:27,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-02 14:33:27,253 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 14:33:27,254 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 14:33:27,254 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 14:33:27,254 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 14:33:27,254 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:33:27,254 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:33:27,254 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 14:33:27,254 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:33:27,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 14:33:27,260 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82places, 91 transitions [2018-12-02 14:33:28,121 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22596 states. [2018-12-02 14:33:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22596 states. [2018-12-02 14:33:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 14:33:28,129 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:28,129 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] [2018-12-02 14:33:28,131 INFO L423 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:28,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1971274062, now seen corresponding path program 1 times [2018-12-02 14:33:28,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:28,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:28,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:28,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:33:28,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:28,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:28,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:33:28,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:33:28,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:33:28,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:33:28,264 INFO L87 Difference]: Start difference. First operand 22596 states. Second operand 4 states. [2018-12-02 14:33:28,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:28,642 INFO L93 Difference]: Finished difference Result 53210 states and 199742 transitions. [2018-12-02 14:33:28,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:33:28,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-02 14:33:28,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:28,780 INFO L225 Difference]: With dead ends: 53210 [2018-12-02 14:33:28,781 INFO L226 Difference]: Without dead ends: 38180 [2018-12-02 14:33:28,782 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 [2018-12-02 14:33:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38180 states. [2018-12-02 14:33:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38180 to 20681. [2018-12-02 14:33:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2018-12-02 14:33:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 79025 transitions. [2018-12-02 14:33:29,503 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 79025 transitions. Word has length 23 [2018-12-02 14:33:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:29,504 INFO L480 AbstractCegarLoop]: Abstraction has 20681 states and 79025 transitions. [2018-12-02 14:33:29,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:33:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 79025 transitions. [2018-12-02 14:33:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 14:33:29,506 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:29,506 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] [2018-12-02 14:33:29,507 INFO L423 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:29,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:29,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1843184933, now seen corresponding path program 1 times [2018-12-02 14:33:29,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:29,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:29,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:29,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:33:29,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:29,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:29,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 14:33:29,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:33:29,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:33:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:33:29,570 INFO L87 Difference]: Start difference. First operand 20681 states and 79025 transitions. Second operand 5 states. [2018-12-02 14:33:29,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:29,684 INFO L93 Difference]: Finished difference Result 18941 states and 68442 transitions. [2018-12-02 14:33:29,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:33:29,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-02 14:33:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:29,719 INFO L225 Difference]: With dead ends: 18941 [2018-12-02 14:33:29,719 INFO L226 Difference]: Without dead ends: 18701 [2018-12-02 14:33:29,720 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 [2018-12-02 14:33:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2018-12-02 14:33:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2018-12-02 14:33:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18701 states. [2018-12-02 14:33:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 67574 transitions. [2018-12-02 14:33:29,974 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 67574 transitions. Word has length 25 [2018-12-02 14:33:29,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:29,974 INFO L480 AbstractCegarLoop]: Abstraction has 18701 states and 67574 transitions. [2018-12-02 14:33:29,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:33:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 67574 transitions. [2018-12-02 14:33:29,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 14:33:29,975 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:29,975 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] [2018-12-02 14:33:29,975 INFO L423 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:29,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:29,975 INFO L82 PathProgramCache]: Analyzing trace with hash 714069777, now seen corresponding path program 2 times [2018-12-02 14:33:29,975 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:29,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:29,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:29,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:33:29,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:30,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:30,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:33:30,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:33:30,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:33:30,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:33:30,009 INFO L87 Difference]: Start difference. First operand 18701 states and 67574 transitions. Second operand 4 states. [2018-12-02 14:33:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:30,072 INFO L93 Difference]: Finished difference Result 17297 states and 57246 transitions. [2018-12-02 14:33:30,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 14:33:30,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-02 14:33:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:30,101 INFO L225 Difference]: With dead ends: 17297 [2018-12-02 14:33:30,101 INFO L226 Difference]: Without dead ends: 16721 [2018-12-02 14:33:30,101 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 [2018-12-02 14:33:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16721 states. [2018-12-02 14:33:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16721 to 12992. [2018-12-02 14:33:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12992 states. [2018-12-02 14:33:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12992 states to 12992 states and 43427 transitions. [2018-12-02 14:33:30,367 INFO L78 Accepts]: Start accepts. Automaton has 12992 states and 43427 transitions. Word has length 25 [2018-12-02 14:33:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:30,367 INFO L480 AbstractCegarLoop]: Abstraction has 12992 states and 43427 transitions. [2018-12-02 14:33:30,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:33:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12992 states and 43427 transitions. [2018-12-02 14:33:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 14:33:30,370 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:30,370 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] [2018-12-02 14:33:30,370 INFO L423 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:30,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:30,371 INFO L82 PathProgramCache]: Analyzing trace with hash 47924841, now seen corresponding path program 1 times [2018-12-02 14:33:30,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:30,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:30,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,373 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:33:30,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:30,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:30,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:33:30,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:33:30,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:33:30,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:33:30,399 INFO L87 Difference]: Start difference. First operand 12992 states and 43427 transitions. Second operand 4 states. [2018-12-02 14:33:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:30,467 INFO L93 Difference]: Finished difference Result 14324 states and 47560 transitions. [2018-12-02 14:33:30,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:33:30,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-02 14:33:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:30,478 INFO L225 Difference]: With dead ends: 14324 [2018-12-02 14:33:30,478 INFO L226 Difference]: Without dead ends: 8831 [2018-12-02 14:33:30,478 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 [2018-12-02 14:33:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2018-12-02 14:33:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 7334. [2018-12-02 14:33:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7334 states. [2018-12-02 14:33:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7334 states to 7334 states and 23840 transitions. [2018-12-02 14:33:30,566 INFO L78 Accepts]: Start accepts. Automaton has 7334 states and 23840 transitions. Word has length 29 [2018-12-02 14:33:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:30,567 INFO L480 AbstractCegarLoop]: Abstraction has 7334 states and 23840 transitions. [2018-12-02 14:33:30,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:33:30,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7334 states and 23840 transitions. [2018-12-02 14:33:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 14:33:30,570 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:30,570 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] [2018-12-02 14:33:30,570 INFO L423 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:30,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:30,570 INFO L82 PathProgramCache]: Analyzing trace with hash 164056283, now seen corresponding path program 1 times [2018-12-02 14:33:30,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:30,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:30,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:33:30,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:30,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:30,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 14:33:30,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:33:30,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:33:30,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:33:30,602 INFO L87 Difference]: Start difference. First operand 7334 states and 23840 transitions. Second operand 5 states. [2018-12-02 14:33:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:30,639 INFO L93 Difference]: Finished difference Result 8558 states and 27434 transitions. [2018-12-02 14:33:30,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:33:30,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-02 14:33:30,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:30,648 INFO L225 Difference]: With dead ends: 8558 [2018-12-02 14:33:30,648 INFO L226 Difference]: Without dead ends: 7379 [2018-12-02 14:33:30,649 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 [2018-12-02 14:33:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2018-12-02 14:33:30,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 6803. [2018-12-02 14:33:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6803 states. [2018-12-02 14:33:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 22284 transitions. [2018-12-02 14:33:30,725 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 22284 transitions. Word has length 37 [2018-12-02 14:33:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:30,725 INFO L480 AbstractCegarLoop]: Abstraction has 6803 states and 22284 transitions. [2018-12-02 14:33:30,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:33:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 22284 transitions. [2018-12-02 14:33:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 14:33:30,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:33:30,728 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] [2018-12-02 14:33:30,728 INFO L423 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:33:30,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:33:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash -288917643, now seen corresponding path program 2 times [2018-12-02 14:33:30,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:33:30,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:33:30,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:33:30,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:33:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:33:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:33:30,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:33:30,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 14:33:30,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 14:33:30,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 14:33:30,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-02 14:33:30,763 INFO L87 Difference]: Start difference. First operand 6803 states and 22284 transitions. Second operand 5 states. [2018-12-02 14:33:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:33:30,797 INFO L93 Difference]: Finished difference Result 1907 states and 5204 transitions. [2018-12-02 14:33:30,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 14:33:30,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-02 14:33:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:33:30,798 INFO L225 Difference]: With dead ends: 1907 [2018-12-02 14:33:30,798 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 14:33:30,798 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 [2018-12-02 14:33:30,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 14:33:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 14:33:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 14:33:30,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 14:33:30,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-12-02 14:33:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:33:30,799 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:33:30,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 14:33:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 14:33:30,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 14:33:30,802 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 14:33:30,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:33:30 BasicIcfg [2018-12-02 14:33:30,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 14:33:30,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:33:30,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:33:30,804 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:33:30,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:27" (3/4) ... [2018-12-02 14:33:30,807 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 14:33:30,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2018-12-02 14:33:30,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2018-12-02 14:33:30,816 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-02 14:33:30,816 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 14:33:30,839 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b42acaa6-bf4a-4255-85c8-729ae06be7a1/bin-2019/uautomizer/witness.graphml [2018-12-02 14:33:30,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:33:30,840 INFO L168 Benchmark]: Toolchain (without parser) took 4245.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.5 MB). Free memory was 951.7 MB in the beginning and 578.2 MB in the end (delta: 373.5 MB). Peak memory consumption was 687.0 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,841 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-02 14:33:30,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,841 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 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. [2018-12-02 14:33:30,842 INFO L168 Benchmark]: RCFGBuilder took 212.49 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,842 INFO L168 Benchmark]: TraceAbstraction took 3635.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 586.8 MB in the end (delta: 492.1 MB). Peak memory consumption was 677.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,842 INFO L168 Benchmark]: Witness Printer took 35.88 ms. Allocated memory is still 1.3 GB. Free memory was 586.8 MB in the beginning and 578.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-12-02 14:33:30,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 299.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.44 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. * RCFGBuilder took 212.49 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3635.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 586.8 MB in the end (delta: 492.1 MB). Peak memory consumption was 677.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.88 ms. Allocated memory is still 1.3 GB. Free memory was 586.8 MB in the beginning and 578.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 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, 3.5s 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: 1.3s 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...