./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe018_pso.opt_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/safe018_pso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63b3e97d43a9aaa9c5857406dfc60d3ad3b8f777 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:43:12,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:12,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:12,881 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:12,882 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:12,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:12,886 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:12,888 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:12,891 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:12,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:12,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:12,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:12,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:12,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:12,902 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:12,906 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:12,907 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:12,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:12,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:12,924 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:12,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:12,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:12,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:12,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:12,938 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:12,939 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:12,940 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:12,943 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:12,943 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:12,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:12,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:12,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:12,951 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:12,952 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:12,953 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:12,954 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:12,954 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:12,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:12,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:12,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:12,970 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:12,970 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:12,971 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:12,971 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:12,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:12,971 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:12,971 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:12,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:12,973 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:12,973 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:12,973 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:12,973 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:12,973 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:12,973 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:12,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:12,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:12,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:12,974 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:12,974 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:12,975 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:12,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:12,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:12,975 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 -> 63b3e97d43a9aaa9c5857406dfc60d3ad3b8f777 [2018-11-28 20:43:13,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:13,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:13,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:13,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:13,035 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:13,035 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe018_pso.opt_true-unreach-call.i [2018-11-28 20:43:13,099 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77eb99b/6621be0321274abc8a4330968a960b2a/FLAG134975b29 [2018-11-28 20:43:13,669 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:13,669 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe018_pso.opt_true-unreach-call.i [2018-11-28 20:43:13,684 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77eb99b/6621be0321274abc8a4330968a960b2a/FLAG134975b29 [2018-11-28 20:43:13,927 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77eb99b/6621be0321274abc8a4330968a960b2a [2018-11-28 20:43:13,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:13,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:13,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:13,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:13,938 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:13,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:13" (1/1) ... [2018-11-28 20:43:13,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa32a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:13, skipping insertion in model container [2018-11-28 20:43:13,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:13" (1/1) ... [2018-11-28 20:43:13,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:13,996 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:14,396 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:14,416 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:14,496 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:14,661 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:14,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14 WrapperNode [2018-11-28 20:43:14,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:14,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:14,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:14,662 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:14,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:14,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:14,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:14,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:14,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (1/1) ... [2018-11-28 20:43:14,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:14,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:14,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:14,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:14,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (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 20:43:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:14,808 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 20:43:15,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:15,298 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:15,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:15 BoogieIcfgContainer [2018-11-28 20:43:15,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:15,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:15,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:15,304 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:15,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:13" (1/3) ... [2018-11-28 20:43:15,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39313deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:15, skipping insertion in model container [2018-11-28 20:43:15,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:14" (2/3) ... [2018-11-28 20:43:15,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39313deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:15, skipping insertion in model container [2018-11-28 20:43:15,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:15" (3/3) ... [2018-11-28 20:43:15,309 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt_true-unreach-call.i [2018-11-28 20:43:15,345 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,345 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,345 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,346 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,348 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,348 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,348 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,349 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,349 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,349 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,349 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,353 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,353 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,353 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,353 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,353 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,354 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,354 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:15,388 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:15,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:15,398 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:15,417 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:15,451 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:15,452 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:15,452 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:15,452 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:15,452 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:15,453 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:15,453 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:15,453 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:15,453 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:15,463 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-28 20:43:15,610 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-28 20:43:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-28 20:43:15,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:15,633 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:15,634 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 20:43:15,636 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:15,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:15,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1493068601, now seen corresponding path program 1 times [2018-11-28 20:43:15,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:15,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:15,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:15,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:15,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:16,052 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 20:43:16,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:16,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:16,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:16,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:16,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:16,074 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-28 20:43:16,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:16,273 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-28 20:43:16,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:16,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-28 20:43:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:16,322 INFO L225 Difference]: With dead ends: 2493 [2018-11-28 20:43:16,322 INFO L226 Difference]: Without dead ends: 1128 [2018-11-28 20:43:16,324 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 20:43:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-28 20:43:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-28 20:43:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-28 20:43:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-28 20:43:16,495 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-28 20:43:16,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:16,498 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-28 20:43:16,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-28 20:43:16,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:16,507 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:16,507 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 20:43:16,508 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:16,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:16,508 INFO L82 PathProgramCache]: Analyzing trace with hash 257798501, now seen corresponding path program 1 times [2018-11-28 20:43:16,510 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:16,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:16,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:16,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:16,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:16,864 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 20:43:16,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:16,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:16,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:16,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:16,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:16,868 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-28 20:43:17,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:17,349 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-28 20:43:17,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:17,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 20:43:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:17,361 INFO L225 Difference]: With dead ends: 1168 [2018-11-28 20:43:17,362 INFO L226 Difference]: Without dead ends: 1044 [2018-11-28 20:43:17,363 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 20:43:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-28 20:43:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-28 20:43:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-28 20:43:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-28 20:43:17,407 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-28 20:43:17,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:17,407 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-28 20:43:17,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-28 20:43:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:17,411 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:17,411 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 20:43:17,411 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:17,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:17,412 INFO L82 PathProgramCache]: Analyzing trace with hash 490078413, now seen corresponding path program 1 times [2018-11-28 20:43:17,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:17,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:17,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:17,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:17,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:17,800 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 20:43:17,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:17,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:17,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:17,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:17,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:17,802 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-28 20:43:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:18,319 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-28 20:43:18,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:18,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:18,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:18,326 INFO L225 Difference]: With dead ends: 820 [2018-11-28 20:43:18,326 INFO L226 Difference]: Without dead ends: 708 [2018-11-28 20:43:18,326 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-28 20:43:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-28 20:43:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-28 20:43:18,353 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-28 20:43:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:18,353 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-28 20:43:18,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-28 20:43:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:18,356 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:18,356 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] [2018-11-28 20:43:18,356 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:18,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:18,356 INFO L82 PathProgramCache]: Analyzing trace with hash -774622655, now seen corresponding path program 1 times [2018-11-28 20:43:18,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:18,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:18,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:18,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:18,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:18,763 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-28 20:43:18,945 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 20:43:18,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:18,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:43:18,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:43:18,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:43:18,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:43:18,946 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 8 states. [2018-11-28 20:43:19,347 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-11-28 20:43:19,917 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-11-28 20:43:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:20,301 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2018-11-28 20:43:20,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:43:20,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-28 20:43:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:20,309 INFO L225 Difference]: With dead ends: 1108 [2018-11-28 20:43:20,309 INFO L226 Difference]: Without dead ends: 592 [2018-11-28 20:43:20,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:43:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-28 20:43:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2018-11-28 20:43:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-11-28 20:43:20,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2018-11-28 20:43:20,332 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2018-11-28 20:43:20,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:20,332 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2018-11-28 20:43:20,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:43:20,333 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2018-11-28 20:43:20,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:20,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:20,335 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] [2018-11-28 20:43:20,335 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:20,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:20,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1731473919, now seen corresponding path program 2 times [2018-11-28 20:43:20,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:20,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:20,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:20,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:20,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:20,715 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 20:43:20,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:20,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:20,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:20,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:20,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:20,717 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2018-11-28 20:43:21,243 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 20:43:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:21,532 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2018-11-28 20:43:21,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:21,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:21,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:21,537 INFO L225 Difference]: With dead ends: 976 [2018-11-28 20:43:21,538 INFO L226 Difference]: Without dead ends: 556 [2018-11-28 20:43:21,538 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-28 20:43:21,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-28 20:43:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-28 20:43:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-28 20:43:21,557 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-28 20:43:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:21,558 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-28 20:43:21,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:21,558 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-28 20:43:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:21,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:21,560 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] [2018-11-28 20:43:21,560 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:21,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1959007825, now seen corresponding path program 3 times [2018-11-28 20:43:21,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:21,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:21,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:21,564 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:21,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:22,107 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 20:43:22,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:22,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:22,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:22,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:22,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:22,109 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-28 20:43:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:22,258 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-28 20:43:22,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:22,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:22,259 INFO L225 Difference]: With dead ends: 428 [2018-11-28 20:43:22,259 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:22,260 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:22,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:22,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 20:43:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:22,262 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:22,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:22,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:22,266 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:22,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:22 BasicIcfg [2018-11-28 20:43:22,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:22,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:22,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:22,268 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:22,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:15" (3/4) ... [2018-11-28 20:43:22,272 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:22,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:22,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:22,279 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:22,285 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:22,285 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:22,339 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:22,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:22,341 INFO L168 Benchmark]: Toolchain (without parser) took 8409.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 869.1 MB in the end (delta: 82.2 MB). Peak memory consumption was 239.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:22,347 INFO L168 Benchmark]: CDTParser took 0.15 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 20:43:22,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:22,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:22,353 INFO L168 Benchmark]: Boogie Preprocessor took 28.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:22,353 INFO L168 Benchmark]: RCFGBuilder took 551.73 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:22,353 INFO L168 Benchmark]: TraceAbstraction took 6968.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.1 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:22,354 INFO L168 Benchmark]: Witness Printer took 72.01 ms. Allocated memory is still 1.2 GB. Free memory is still 869.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:22,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 728.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.79 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 551.73 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6968.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.1 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. * Witness Printer took 72.01 ms. Allocated memory is still 1.2 GB. Free memory is still 869.1 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, 71 locations, 1 error locations. SAFE Result, 6.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 473 SDslu, 894 SDs, 0 SdLazy, 120 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15582 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...