./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe008_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe008_tso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ee28b65d3a86f7d8e2251ffb09bdae6e02c12254 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:56:34,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:56:34,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:56:34,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:56:34,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:56:34,908 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:56:34,909 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:56:34,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:56:34,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:56:34,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:56:34,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:56:34,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:56:34,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:56:34,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:56:34,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:56:34,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:56:34,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:56:34,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:56:34,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:56:34,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:56:34,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:56:34,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:56:34,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:56:34,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:56:34,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:56:34,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:56:34,940 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:56:34,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:56:34,941 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:56:34,943 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:56:34,943 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:56:34,944 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:56:34,944 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:56:34,944 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:56:34,945 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:56:34,946 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:56:34,946 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:56:34,968 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:56:34,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:56:34,972 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:56:34,973 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:56:34,973 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:56:34,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:56:34,974 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:56:34,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:56:34,974 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:56:34,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:56:34,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:56:34,976 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:56:34,976 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:56:34,977 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:56:34,977 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:56:34,977 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:56:34,977 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:56:34,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:56:34,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:56:34,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:56:34,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:56:34,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:56:34,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:56:34,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:56:34,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:56:34,982 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:56:34,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:56:34,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:56:34,982 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> ee28b65d3a86f7d8e2251ffb09bdae6e02c12254 [2019-01-01 00:56:35,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:56:35,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:56:35,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:56:35,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:56:35,082 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:56:35,084 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe008_tso.opt_true-unreach-call.i [2019-01-01 00:56:35,159 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a3ca57d/2a968169575e4511b68777adb7a85218/FLAG1f68edcc2 [2019-01-01 00:56:35,666 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:56:35,666 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe008_tso.opt_true-unreach-call.i [2019-01-01 00:56:35,686 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a3ca57d/2a968169575e4511b68777adb7a85218/FLAG1f68edcc2 [2019-01-01 00:56:35,968 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a3ca57d/2a968169575e4511b68777adb7a85218 [2019-01-01 00:56:35,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:56:35,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:56:35,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:35,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:56:35,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:56:35,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:35" (1/1) ... [2019-01-01 00:56:35,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7214055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:35, skipping insertion in model container [2019-01-01 00:56:35,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:35" (1/1) ... [2019-01-01 00:56:35,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:56:36,058 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:56:36,541 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:36,562 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:56:36,683 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:36,776 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:56:36,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36 WrapperNode [2019-01-01 00:56:36,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:36,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:36,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:56:36,779 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:56:36,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:36,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:56:36,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:56:36,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:56:36,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... [2019-01-01 00:56:36,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:56:36,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:56:36,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:56:36,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:56:36,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-01 00:56:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:56:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:56:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:56:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:56:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:56:36,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:56:36,954 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:56:36,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:56:36,954 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:56:36,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:56:36,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:56:36,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:56:36,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:56:36,959 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:56:37,441 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:56:37,442 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:56:37,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:37 BoogieIcfgContainer [2019-01-01 00:56:37,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:56:37,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:56:37,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:56:37,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:56:37,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:56:35" (1/3) ... [2019-01-01 00:56:37,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955419c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:37, skipping insertion in model container [2019-01-01 00:56:37,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:36" (2/3) ... [2019-01-01 00:56:37,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955419c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:37, skipping insertion in model container [2019-01-01 00:56:37,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:37" (3/3) ... [2019-01-01 00:56:37,454 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt_true-unreach-call.i [2019-01-01 00:56:37,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,511 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,511 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,512 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,514 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,514 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,517 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,518 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,518 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,518 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,518 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,520 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,520 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,520 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,520 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,520 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,521 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:37,559 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:56:37,559 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:56:37,568 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:56:37,585 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:56:37,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:56:37,612 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:56:37,612 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:56:37,612 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:56:37,612 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:56:37,612 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:56:37,613 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:56:37,613 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:56:37,613 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:56:37,623 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-01 00:56:37,763 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-01 00:56:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-01 00:56:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:56:37,787 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:37,788 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] [2019-01-01 00:56:37,791 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:37,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:37,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2105722364, now seen corresponding path program 1 times [2019-01-01 00:56:37,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:37,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:37,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:37,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:37,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:38,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:38,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:56:38,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:56:38,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:56:38,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:56:38,225 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-01 00:56:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:38,428 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-01 00:56:38,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:56:38,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-01 00:56:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:38,464 INFO L225 Difference]: With dead ends: 2493 [2019-01-01 00:56:38,464 INFO L226 Difference]: Without dead ends: 1128 [2019-01-01 00:56:38,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:56:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-01 00:56:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-01 00:56:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-01 00:56:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-01 00:56:38,605 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-01 00:56:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:38,606 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-01 00:56:38,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:56:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-01 00:56:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:56:38,614 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:38,614 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] [2019-01-01 00:56:38,614 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:38,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:38,615 INFO L82 PathProgramCache]: Analyzing trace with hash -508878932, now seen corresponding path program 1 times [2019-01-01 00:56:38,615 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:38,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:38,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:38,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:38,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:38,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:38,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:56:38,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:56:38,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:56:38,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:56:38,923 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-01 00:56:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:39,309 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-01 00:56:39,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:56:39,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-01 00:56:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:39,325 INFO L225 Difference]: With dead ends: 1168 [2019-01-01 00:56:39,325 INFO L226 Difference]: Without dead ends: 1044 [2019-01-01 00:56:39,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-01 00:56:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-01 00:56:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-01 00:56:39,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-01 00:56:39,381 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-01 00:56:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:39,381 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-01 00:56:39,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:56:39,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-01 00:56:39,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:56:39,385 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:39,385 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] [2019-01-01 00:56:39,386 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:39,387 INFO L82 PathProgramCache]: Analyzing trace with hash 212848118, now seen corresponding path program 1 times [2019-01-01 00:56:39,387 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:39,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:39,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:39,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:39,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:39,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:39,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:56:39,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:56:39,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:56:39,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:56:39,651 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-01 00:56:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:39,878 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-01 00:56:39,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:39,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-01 00:56:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:39,885 INFO L225 Difference]: With dead ends: 820 [2019-01-01 00:56:39,885 INFO L226 Difference]: Without dead ends: 708 [2019-01-01 00:56:39,886 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:56:39,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-01 00:56:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-01 00:56:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-01 00:56:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-01 00:56:39,911 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-01 00:56:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:39,912 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-01 00:56:39,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:56:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-01 00:56:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:39,914 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:39,915 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] [2019-01-01 00:56:39,915 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -33109900, now seen corresponding path program 1 times [2019-01-01 00:56:39,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:39,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:39,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:39,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:39,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:40,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:40,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:56:40,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:56:40,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:56:40,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:56:40,055 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 6 states. [2019-01-01 00:56:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:40,281 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2019-01-01 00:56:40,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:56:40,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:56:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:40,288 INFO L225 Difference]: With dead ends: 1108 [2019-01-01 00:56:40,288 INFO L226 Difference]: Without dead ends: 592 [2019-01-01 00:56:40,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:56:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-01-01 00:56:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-01-01 00:56:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-01-01 00:56:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2019-01-01 00:56:40,311 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2019-01-01 00:56:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:40,311 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2019-01-01 00:56:40,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:56:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2019-01-01 00:56:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:40,315 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:40,315 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] [2019-01-01 00:56:40,316 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:40,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:40,316 INFO L82 PathProgramCache]: Analyzing trace with hash -630366874, now seen corresponding path program 2 times [2019-01-01 00:56:40,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:40,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:40,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:40,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:40,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:40,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:40,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:56:40,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:56:40,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:56:40,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:56:40,947 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 8 states. [2019-01-01 00:56:41,476 WARN L181 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2019-01-01 00:56:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:41,489 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2019-01-01 00:56:41,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:56:41,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-01 00:56:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:41,496 INFO L225 Difference]: With dead ends: 976 [2019-01-01 00:56:41,496 INFO L226 Difference]: Without dead ends: 556 [2019-01-01 00:56:41,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:56:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-01-01 00:56:41,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-01-01 00:56:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-01-01 00:56:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-01-01 00:56:41,514 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-01-01 00:56:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:41,515 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-01-01 00:56:41,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:56:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-01-01 00:56:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:41,517 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:41,517 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] [2019-01-01 00:56:41,517 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:41,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:41,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1181043102, now seen corresponding path program 3 times [2019-01-01 00:56:41,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:41,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:41,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:41,520 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:56:41,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:41,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:41,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-01-01 00:56:41,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-01 00:56:41,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-01 00:56:41,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:56:41,799 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 11 states. [2019-01-01 00:56:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:42,034 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-01-01 00:56:42,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-01 00:56:42,035 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2019-01-01 00:56:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:42,035 INFO L225 Difference]: With dead ends: 428 [2019-01-01 00:56:42,035 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:56:42,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2019-01-01 00:56:42,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:56:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:56:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:56:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:56:42,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-01 00:56:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:42,037 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:56:42,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-01 00:56:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:56:42,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:56:42,041 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:56:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:56:42 BasicIcfg [2019-01-01 00:56:42,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:56:42,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:56:42,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:56:42,043 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:56:42,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:37" (3/4) ... [2019-01-01 00:56:42,048 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:56:42,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:56:42,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:56:42,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:56:42,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:56:42,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:56:42,113 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:56:42,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:56:42,114 INFO L168 Benchmark]: Toolchain (without parser) took 6140.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 942.0 MB in the beginning and 839.6 MB in the end (delta: 102.3 MB). Peak memory consumption was 248.1 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:42,115 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:42,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:42,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.40 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:42,117 INFO L168 Benchmark]: Boogie Preprocessor took 32.81 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. [2019-01-01 00:56:42,118 INFO L168 Benchmark]: RCFGBuilder took 566.45 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:42,119 INFO L168 Benchmark]: TraceAbstraction took 4599.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.6 MB in the end (delta: 247.4 MB). Peak memory consumption was 247.4 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:42,119 INFO L168 Benchmark]: Witness Printer took 69.86 ms. Allocated memory is still 1.2 GB. Free memory is still 839.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:42,124 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 801.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.40 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.81 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 566.45 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4599.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.6 MB in the end (delta: 247.4 MB). Peak memory consumption was 247.4 MB. Max. memory is 11.5 GB. * Witness Printer took 69.86 ms. Allocated memory is still 1.2 GB. Free memory is still 839.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 332 SDtfs, 466 SDslu, 1004 SDs, 0 SdLazy, 141 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 18334 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...