./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe012_tso.oepc_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/safe012_tso.oepc_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 436380a5ff64d458d89c12032ba342cb23ddb451 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:56:51,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:56:51,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:56:51,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:56:51,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:56:51,877 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:56:51,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:56:51,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:56:51,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:56:51,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:56:51,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:56:51,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:56:51,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:56:51,888 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:56:51,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:56:51,890 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:56:51,891 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:56:51,893 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:56:51,895 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:56:51,897 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:56:51,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:56:51,900 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:56:51,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:56:51,903 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:56:51,903 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:56:51,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:56:51,905 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:56:51,906 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:56:51,907 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:56:51,908 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:56:51,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:56:51,911 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:56:51,911 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:56:51,912 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:56:51,913 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:56:51,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:56:51,914 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:56:51,946 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:56:51,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:56:51,949 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:56:51,949 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:56:51,950 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:56:51,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:56:51,950 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:56:51,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:56:51,950 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:56:51,951 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:56:51,952 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:56:51,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:56:51,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:56:51,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:56:51,954 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:56:51,954 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:56:51,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:56:51,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:56:51,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:56:51,955 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:56:51,955 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:56:51,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:56:51,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:56:51,956 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 -> 436380a5ff64d458d89c12032ba342cb23ddb451 [2019-01-01 00:56:52,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:56:52,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:56:52,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:56:52,035 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:56:52,035 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:56:52,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe012_tso.oepc_true-unreach-call.i [2019-01-01 00:56:52,097 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fcdc3d87/deb532d969aa42158e6ea41a407b2636/FLAGa62d8859b [2019-01-01 00:56:52,677 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:56:52,678 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe012_tso.oepc_true-unreach-call.i [2019-01-01 00:56:52,691 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fcdc3d87/deb532d969aa42158e6ea41a407b2636/FLAGa62d8859b [2019-01-01 00:56:52,911 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fcdc3d87/deb532d969aa42158e6ea41a407b2636 [2019-01-01 00:56:52,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:56:52,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:56:52,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:52,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:56:52,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:56:52,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:52" (1/1) ... [2019-01-01 00:56:52,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bb1ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:52, skipping insertion in model container [2019-01-01 00:56:52,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:52" (1/1) ... [2019-01-01 00:56:52,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:56:53,000 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:56:53,493 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:53,522 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:56:53,612 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:53,833 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:56:53,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53 WrapperNode [2019-01-01 00:56:53,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:53,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:53,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:56:53,836 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:56:53,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:53,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:56:53,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:56:53,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:56:53,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:56:53,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:56:53,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:56:53,954 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:56:53,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (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 00:56:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:56:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:56:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:56:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:56:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:56:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:56:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:56:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:56:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:56:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:56:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:56:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:56:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:56:54,033 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 00:56:54,555 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:56:54,556 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:56:54,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54 BoogieIcfgContainer [2019-01-01 00:56:54,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:56:54,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:56:54,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:56:54,563 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:56:54,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:56:52" (1/3) ... [2019-01-01 00:56:54,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3699d788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:54, skipping insertion in model container [2019-01-01 00:56:54,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (2/3) ... [2019-01-01 00:56:54,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3699d788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:54, skipping insertion in model container [2019-01-01 00:56:54,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54" (3/3) ... [2019-01-01 00:56:54,567 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc_true-unreach-call.i [2019-01-01 00:56:54,605 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,605 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,605 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,608 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,608 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,608 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,608 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,609 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,609 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,609 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,611 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,611 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,611 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,611 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,649 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:56:54,649 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:56:54,658 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:56:54,676 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:56:54,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:56:54,703 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:56:54,703 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:56:54,703 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:56:54,703 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:56:54,703 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:56:54,703 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:56:54,704 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:56:54,704 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:56:54,713 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2019-01-01 00:56:54,850 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-01-01 00:56:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-01-01 00:56:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:56:54,879 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:54,881 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 00:56:54,883 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:54,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:54,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1011204503, now seen corresponding path program 1 times [2019-01-01 00:56:54,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:54,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:54,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:54,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:54,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:55,270 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 00:56:55,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:55,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:56:55,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:56:55,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:56:55,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:56:55,294 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-01-01 00:56:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:55,539 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-01-01 00:56:55,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:56:55,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-01-01 00:56:55,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:55,581 INFO L225 Difference]: With dead ends: 2494 [2019-01-01 00:56:55,581 INFO L226 Difference]: Without dead ends: 1129 [2019-01-01 00:56:55,583 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 [2019-01-01 00:56:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-01-01 00:56:55,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-01-01 00:56:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-01-01 00:56:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-01-01 00:56:55,747 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-01-01 00:56:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:55,748 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-01-01 00:56:55,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:56:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-01-01 00:56:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:56:55,753 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:55,753 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 00:56:55,754 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:55,754 INFO L82 PathProgramCache]: Analyzing trace with hash -52650827, now seen corresponding path program 1 times [2019-01-01 00:56:55,754 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:55,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:55,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:55,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:55,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:56,067 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 00:56:56,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:56,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:56:56,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:56:56,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:56:56,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:56:56,072 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-01-01 00:56:56,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:56,570 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-01-01 00:56:56,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:56:56,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-01-01 00:56:56,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:56,581 INFO L225 Difference]: With dead ends: 1169 [2019-01-01 00:56:56,581 INFO L226 Difference]: Without dead ends: 1045 [2019-01-01 00:56:56,582 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 00:56:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-01-01 00:56:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-01-01 00:56:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-01-01 00:56:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-01-01 00:56:56,630 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-01-01 00:56:56,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:56,630 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-01-01 00:56:56,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:56:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-01-01 00:56:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:56,636 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:56,636 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 00:56:56,636 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:56,637 INFO L82 PathProgramCache]: Analyzing trace with hash -68156749, now seen corresponding path program 1 times [2019-01-01 00:56:56,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:56,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:56,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:56,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:56,924 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 00:56:56,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:56,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:56:56,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:56:56,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:56:56,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:56:56,932 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-01-01 00:56:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:57,304 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-01-01 00:56:57,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:57,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:56:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:57,311 INFO L225 Difference]: With dead ends: 821 [2019-01-01 00:56:57,312 INFO L226 Difference]: Without dead ends: 709 [2019-01-01 00:56:57,312 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 00:56:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-01-01 00:56:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-01-01 00:56:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-01-01 00:56:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-01-01 00:56:57,341 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-01-01 00:56:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:57,342 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-01-01 00:56:57,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:56:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-01-01 00:56:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:57,344 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:57,345 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] [2019-01-01 00:56:57,345 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:57,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:57,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1158860001, now seen corresponding path program 1 times [2019-01-01 00:56:57,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:57,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:57,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:57,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:57,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:57,629 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 00:56:57,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:57,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:56:57,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:56:57,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:56:57,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:57,633 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-01-01 00:56:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:58,050 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-01-01 00:56:58,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:58,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-01-01 00:56:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:58,059 INFO L225 Difference]: With dead ends: 1109 [2019-01-01 00:56:58,059 INFO L226 Difference]: Without dead ends: 593 [2019-01-01 00:56:58,059 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:56:58,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-01-01 00:56:58,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-01-01 00:56:58,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-01-01 00:56:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-01-01 00:56:58,088 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-01-01 00:56:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:58,088 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-01-01 00:56:58,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:56:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-01-01 00:56:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:58,092 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:58,093 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] [2019-01-01 00:56:58,093 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:58,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:58,094 INFO L82 PathProgramCache]: Analyzing trace with hash -703513849, now seen corresponding path program 2 times [2019-01-01 00:56:58,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:58,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:58,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:58,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:58,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:58,545 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 00:56:58,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:58,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:56:58,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:56:58,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:56:58,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:58,547 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 7 states. [2019-01-01 00:56:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:59,004 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-01-01 00:56:59,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:59,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-01-01 00:56:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:59,016 INFO L225 Difference]: With dead ends: 977 [2019-01-01 00:56:59,016 INFO L226 Difference]: Without dead ends: 557 [2019-01-01 00:56:59,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:56:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-01-01 00:56:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-01-01 00:56:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-01-01 00:56:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-01-01 00:56:59,036 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-01-01 00:56:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:59,037 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-01-01 00:56:59,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:56:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-01-01 00:56:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:59,039 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:59,039 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] [2019-01-01 00:56:59,040 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1434143397, now seen corresponding path program 3 times [2019-01-01 00:56:59,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:59,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:59,043 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:56:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:59,289 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 00:56:59,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:59,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:56:59,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:56:59,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:56:59,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:56:59,291 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-01-01 00:56:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:59,638 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-01-01 00:56:59,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:56:59,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:56:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:59,639 INFO L225 Difference]: With dead ends: 429 [2019-01-01 00:56:59,639 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:56:59,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:56:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:56:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:56:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:56:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:56:59,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-01-01 00:56:59,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:59,642 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:56:59,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:56:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:56:59,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:56:59,649 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:56:59,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:56:59 BasicIcfg [2019-01-01 00:56:59,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:56:59,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:56:59,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:56:59,652 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:56:59,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54" (3/4) ... [2019-01-01 00:56:59,658 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:56:59,667 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:56:59,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:56:59,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:56:59,674 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:56:59,674 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:56:59,733 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:56:59,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:56:59,737 INFO L168 Benchmark]: Toolchain (without parser) took 6820.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.3 MB in the beginning and 833.9 MB in the end (delta: 113.5 MB). Peak memory consumption was 247.2 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:59,741 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:59,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:59,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:59,745 INFO L168 Benchmark]: Boogie Preprocessor took 46.23 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 00:56:59,745 INFO L168 Benchmark]: RCFGBuilder took 605.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:59,746 INFO L168 Benchmark]: TraceAbstraction took 5091.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.9 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:59,751 INFO L168 Benchmark]: Witness Printer took 84.30 ms. Allocated memory is still 1.2 GB. Free memory is still 833.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:59,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 916.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.23 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 605.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5091.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.9 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. * Witness Printer took 84.30 ms. Allocated memory is still 1.2 GB. Free memory is still 833.9 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, 72 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 341 SDtfs, 482 SDslu, 900 SDs, 0 SdLazy, 107 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 16395 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...