./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe020_pso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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/safe020_pso.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 ee44adc5a7f03cc521cb2de06deb582cd399b85b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:43:20,864 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:20,866 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:20,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:20,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:20,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:20,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:20,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:20,886 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:20,887 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:20,888 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:20,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:20,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:20,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:20,892 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:20,893 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:20,894 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:20,897 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:20,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:20,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:20,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:20,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:20,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:20,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:20,908 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:20,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:20,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:20,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:20,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:20,914 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:20,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:20,915 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:20,915 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:20,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:20,916 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:20,918 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:20,918 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:20,945 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:20,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:20,946 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:20,947 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:20,947 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:20,947 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:20,950 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:20,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:20,950 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:20,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:20,951 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:20,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:20,952 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:20,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:20,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:20,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:20,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:20,955 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:20,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:20,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:20,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:20,956 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:20,956 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:20,956 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:20,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:20,957 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 -> ee44adc5a7f03cc521cb2de06deb582cd399b85b [2018-11-28 20:43:21,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:21,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:21,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:21,050 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:21,051 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:21,051 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe020_pso.oepc_true-unreach-call.i [2018-11-28 20:43:21,109 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95545d28/96723ea37fcc4027ad6c8482f7625b43/FLAG6388450eb [2018-11-28 20:43:21,666 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:21,667 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe020_pso.oepc_true-unreach-call.i [2018-11-28 20:43:21,691 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95545d28/96723ea37fcc4027ad6c8482f7625b43/FLAG6388450eb [2018-11-28 20:43:21,926 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95545d28/96723ea37fcc4027ad6c8482f7625b43 [2018-11-28 20:43:21,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:21,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:21,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:21,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:21,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:21,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:21" (1/1) ... [2018-11-28 20:43:21,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96d1a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:21, skipping insertion in model container [2018-11-28 20:43:21,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:21" (1/1) ... [2018-11-28 20:43:21,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:22,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:22,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:22,472 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:22,635 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:22,719 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:22,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22 WrapperNode [2018-11-28 20:43:22,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:22,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:22,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:22,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:22,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:22,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:22,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:22,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:22,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (1/1) ... [2018-11-28 20:43:22,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:22,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:22,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:22,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:22,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (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 [2018-11-28 20:43:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:22,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:22,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:22,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:22,873 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:43:23,384 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:23,384 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:23,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:23 BoogieIcfgContainer [2018-11-28 20:43:23,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:23,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:23,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:23,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:23,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:21" (1/3) ... [2018-11-28 20:43:23,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684ecb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:23, skipping insertion in model container [2018-11-28 20:43:23,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:22" (2/3) ... [2018-11-28 20:43:23,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684ecb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:23, skipping insertion in model container [2018-11-28 20:43:23,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:23" (3/3) ... [2018-11-28 20:43:23,399 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_true-unreach-call.i [2018-11-28 20:43:23,437 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,438 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,438 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,438 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,439 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,439 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,439 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,440 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,441 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,441 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,444 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,444 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,444 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,444 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,445 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,445 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,445 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,445 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,445 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,446 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,446 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,446 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,446 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,446 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,450 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,450 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,450 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:23,475 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:23,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:23,484 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:23,501 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:23,528 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:23,529 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:23,529 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:23,530 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:23,530 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:23,530 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:23,530 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:23,530 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:23,530 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:23,544 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-28 20:43:23,703 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-28 20:43:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-28 20:43:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:43:23,727 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:23,728 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:23,736 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:23,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2034524401, now seen corresponding path program 1 times [2018-11-28 20:43:23,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:23,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:23,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:23,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:23,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:24,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:24,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:24,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:24,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:24,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:24,129 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-28 20:43:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:24,327 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-28 20:43:24,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:24,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-28 20:43:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:24,366 INFO L225 Difference]: With dead ends: 2492 [2018-11-28 20:43:24,366 INFO L226 Difference]: Without dead ends: 1127 [2018-11-28 20:43:24,368 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 [2018-11-28 20:43:24,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-28 20:43:24,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-28 20:43:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-28 20:43:24,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-28 20:43:24,544 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-28 20:43:24,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:24,545 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-28 20:43:24,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:24,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-28 20:43:24,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:24,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:24,550 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] [2018-11-28 20:43:24,550 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:24,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:24,551 INFO L82 PathProgramCache]: Analyzing trace with hash -35343599, now seen corresponding path program 1 times [2018-11-28 20:43:24,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:24,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:24,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:24,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:24,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:24,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:24,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:24,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:24,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:24,825 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-28 20:43:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:25,227 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-28 20:43:25,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:25,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-28 20:43:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:25,239 INFO L225 Difference]: With dead ends: 1167 [2018-11-28 20:43:25,240 INFO L226 Difference]: Without dead ends: 1043 [2018-11-28 20:43:25,241 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 [2018-11-28 20:43:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-28 20:43:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-28 20:43:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-28 20:43:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-28 20:43:25,288 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-28 20:43:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:25,290 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-28 20:43:25,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-28 20:43:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:25,294 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:25,294 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:25,294 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:25,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:25,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1463535297, now seen corresponding path program 1 times [2018-11-28 20:43:25,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:25,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:25,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:25,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:25,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:25,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:25,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:25,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:25,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:25,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:25,476 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-28 20:43:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:25,736 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-28 20:43:25,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:25,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:43:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:25,745 INFO L225 Difference]: With dead ends: 819 [2018-11-28 20:43:25,745 INFO L226 Difference]: Without dead ends: 707 [2018-11-28 20:43:25,745 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 [2018-11-28 20:43:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-28 20:43:25,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-28 20:43:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-28 20:43:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-28 20:43:25,773 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-28 20:43:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:25,775 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-28 20:43:25,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-28 20:43:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:25,778 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:25,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:25,779 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:25,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1549733045, now seen corresponding path program 1 times [2018-11-28 20:43:25,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:25,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:25,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:25,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:25,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:26,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:26,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 20:43:26,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 20:43:26,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 20:43:26,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 20:43:26,295 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2018-11-28 20:43:27,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:27,216 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2018-11-28 20:43:27,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 20:43:27,217 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-28 20:43:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:27,222 INFO L225 Difference]: With dead ends: 1107 [2018-11-28 20:43:27,222 INFO L226 Difference]: Without dead ends: 591 [2018-11-28 20:43:27,223 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-11-28 20:43:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-11-28 20:43:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2018-11-28 20:43:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-11-28 20:43:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2018-11-28 20:43:27,244 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2018-11-28 20:43:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:27,244 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2018-11-28 20:43:27,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 20:43:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2018-11-28 20:43:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:27,246 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:27,247 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:27,247 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:27,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:27,247 INFO L82 PathProgramCache]: Analyzing trace with hash -813130677, now seen corresponding path program 2 times [2018-11-28 20:43:27,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:27,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:27,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:27,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:27,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:27,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:27,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:43:27,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:43:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:43:27,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:43:27,566 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 8 states. [2018-11-28 20:43:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:27,976 INFO L93 Difference]: Finished difference Result 975 states and 2938 transitions. [2018-11-28 20:43:27,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 20:43:27,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-28 20:43:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:27,984 INFO L225 Difference]: With dead ends: 975 [2018-11-28 20:43:27,985 INFO L226 Difference]: Without dead ends: 555 [2018-11-28 20:43:27,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:43:27,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-11-28 20:43:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-28 20:43:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-28 20:43:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-11-28 20:43:28,005 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-11-28 20:43:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:28,005 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-11-28 20:43:28,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:43:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-11-28 20:43:28,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:28,007 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:28,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:28,007 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:28,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:28,010 INFO L82 PathProgramCache]: Analyzing trace with hash -126223495, now seen corresponding path program 3 times [2018-11-28 20:43:28,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:28,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:28,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:28,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:28,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:28,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:28,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:28,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:28,267 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2018-11-28 20:43:28,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:28,363 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-11-28 20:43:28,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:28,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:43:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:28,364 INFO L225 Difference]: With dead ends: 427 [2018-11-28 20:43:28,364 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:28,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:28,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 20:43:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:28,366 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:28,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:28,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:28,369 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:28,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:28 BasicIcfg [2018-11-28 20:43:28,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:28,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:28,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:28,372 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:28,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:23" (3/4) ... [2018-11-28 20:43:28,375 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:28,381 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:28,382 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:28,382 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:28,387 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:28,387 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:28,433 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:28,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:28,435 INFO L168 Benchmark]: Toolchain (without parser) took 6504.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.7 MB in the beginning and 794.1 MB in the end (delta: 158.6 MB). Peak memory consumption was 271.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:28,437 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-28 20:43:28,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:28,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:28,439 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:28,439 INFO L168 Benchmark]: RCFGBuilder took 587.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:28,440 INFO L168 Benchmark]: TraceAbstraction took 4985.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.1 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:28,440 INFO L168 Benchmark]: Witness Printer took 62.47 ms. Allocated memory is still 1.1 GB. Free memory is still 794.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:28,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 787.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 587.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4985.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.1 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.47 ms. Allocated memory is still 1.1 GB. Free memory is still 794.1 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, 70 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 360 SDtfs, 483 SDslu, 1261 SDs, 0 SdLazy, 219 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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, 1.5s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16525 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...