./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe031_tso.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/safe031_tso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d1c2329bf68c5bc81376770b87a4c6b7af71f6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:43:42,701 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:42,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:42,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:42,717 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:42,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:42,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:42,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:42,724 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:42,725 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:42,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:42,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:42,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:42,728 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:42,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:42,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:42,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:42,734 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:42,736 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:42,738 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:42,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:42,741 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:42,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:42,747 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:42,747 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:42,748 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:42,750 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:42,751 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:42,754 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:42,758 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:42,758 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:42,759 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:42,761 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:42,761 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:42,762 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:42,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:42,766 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:42,797 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:42,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:42,799 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:42,800 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:42,800 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:42,800 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:42,801 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:42,801 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:42,801 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:42,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:42,801 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:42,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:42,803 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:42,805 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:42,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:42,806 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:42,806 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:42,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:42,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:42,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:42,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:42,807 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:42,807 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:42,807 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:42,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:42,807 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 -> 1d1c2329bf68c5bc81376770b87a4c6b7af71f6d [2018-11-28 20:43:42,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:42,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:42,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:42,883 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:42,883 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:42,885 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe031_tso.opt_true-unreach-call.i [2018-11-28 20:43:42,950 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a6db8d8/68946d0c719341619ebdbe0c5d1f4c2a/FLAG0c121a868 [2018-11-28 20:43:43,576 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:43,577 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe031_tso.opt_true-unreach-call.i [2018-11-28 20:43:43,592 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a6db8d8/68946d0c719341619ebdbe0c5d1f4c2a/FLAG0c121a868 [2018-11-28 20:43:43,816 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a6db8d8/68946d0c719341619ebdbe0c5d1f4c2a [2018-11-28 20:43:43,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:43,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:43,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:43,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:43,827 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:43,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22199964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43, skipping insertion in model container [2018-11-28 20:43:43,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:43,904 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:44,319 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:44,341 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:44,420 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:44,609 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:44,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44 WrapperNode [2018-11-28 20:43:44,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:44,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:44,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:44,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:44,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:44,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:44,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:44,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:44,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (1/1) ... [2018-11-28 20:43:44,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:44,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:44,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:44,722 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:44,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (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 20:43:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:44,788 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 20:43:45,283 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:45,283 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:45,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:45 BoogieIcfgContainer [2018-11-28 20:43:45,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:45,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:45,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:45,288 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:45,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:43" (1/3) ... [2018-11-28 20:43:45,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdf318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:45, skipping insertion in model container [2018-11-28 20:43:45,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:44" (2/3) ... [2018-11-28 20:43:45,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdf318c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:45, skipping insertion in model container [2018-11-28 20:43:45,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:45" (3/3) ... [2018-11-28 20:43:45,292 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt_true-unreach-call.i [2018-11-28 20:43:45,328 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,328 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,329 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,329 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,329 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,329 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,330 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,330 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,331 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,331 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,331 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,331 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,332 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,333 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,333 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,333 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,333 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,333 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,334 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,334 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,334 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,334 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,334 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,335 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,335 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:45,358 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:45,359 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:45,373 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:45,392 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:45,418 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:45,419 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:45,419 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:45,419 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:45,419 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:45,419 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:45,419 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:45,419 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:45,420 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:45,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-28 20:43:45,552 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-28 20:43:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-28 20:43:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:43:45,574 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:45,575 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 20:43:45,577 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:45,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:45,586 INFO L82 PathProgramCache]: Analyzing trace with hash -322166355, now seen corresponding path program 1 times [2018-11-28 20:43:45,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:45,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:45,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:45,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:45,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:45,947 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 20:43:45,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:45,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:45,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:45,975 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-28 20:43:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:46,160 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-28 20:43:46,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:46,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-28 20:43:46,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:46,209 INFO L225 Difference]: With dead ends: 2492 [2018-11-28 20:43:46,209 INFO L226 Difference]: Without dead ends: 1127 [2018-11-28 20:43:46,211 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 20:43:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-28 20:43:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-28 20:43:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-28 20:43:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-28 20:43:46,377 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-28 20:43:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:46,379 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-28 20:43:46,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-28 20:43:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:46,388 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:46,389 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 20:43:46,389 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:46,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:46,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1176750207, now seen corresponding path program 1 times [2018-11-28 20:43:46,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:46,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:46,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:46,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:46,668 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 20:43:46,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:46,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:46,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:46,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:46,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:46,671 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-28 20:43:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:47,155 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-28 20:43:47,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:47,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-28 20:43:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:47,169 INFO L225 Difference]: With dead ends: 1167 [2018-11-28 20:43:47,169 INFO L226 Difference]: Without dead ends: 1043 [2018-11-28 20:43:47,170 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 20:43:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-28 20:43:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-28 20:43:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-28 20:43:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-28 20:43:47,210 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-28 20:43:47,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:47,211 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-28 20:43:47,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:47,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-28 20:43:47,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:47,215 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:47,215 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 20:43:47,215 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:47,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:47,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1363331725, now seen corresponding path program 1 times [2018-11-28 20:43:47,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:47,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:47,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:47,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:47,540 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 20:43:47,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:47,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:47,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:47,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:47,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:47,542 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-28 20:43:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:47,699 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-28 20:43:47,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:47,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:43:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:47,706 INFO L225 Difference]: With dead ends: 819 [2018-11-28 20:43:47,706 INFO L226 Difference]: Without dead ends: 707 [2018-11-28 20:43:47,707 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 20:43:47,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-28 20:43:47,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-28 20:43:47,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-28 20:43:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-28 20:43:47,732 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-28 20:43:47,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:47,732 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-28 20:43:47,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-28 20:43:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:47,735 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:47,736 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 20:43:47,736 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:47,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:47,736 INFO L82 PathProgramCache]: Analyzing trace with hash 930770163, now seen corresponding path program 1 times [2018-11-28 20:43:47,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:47,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:47,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:47,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:48,130 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 20:43:48,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:48,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 20:43:48,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 20:43:48,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 20:43:48,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 20:43:48,132 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2018-11-28 20:43:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:49,009 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2018-11-28 20:43:49,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 20:43:49,009 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-28 20:43:49,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:49,016 INFO L225 Difference]: With dead ends: 1107 [2018-11-28 20:43:49,016 INFO L226 Difference]: Without dead ends: 591 [2018-11-28 20:43:49,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-11-28 20:43:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-11-28 20:43:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2018-11-28 20:43:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-11-28 20:43:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2018-11-28 20:43:49,037 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2018-11-28 20:43:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:49,037 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2018-11-28 20:43:49,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 20:43:49,037 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2018-11-28 20:43:49,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:49,039 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:49,039 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:49,040 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:49,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:49,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1472418163, now seen corresponding path program 2 times [2018-11-28 20:43:49,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:49,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:49,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:49,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:49,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:49,248 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 20:43:49,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:49,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:49,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:49,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:49,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:49,249 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2018-11-28 20:43:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:49,421 INFO L93 Difference]: Finished difference Result 975 states and 2938 transitions. [2018-11-28 20:43:49,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:49,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:43:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:49,431 INFO L225 Difference]: With dead ends: 975 [2018-11-28 20:43:49,431 INFO L226 Difference]: Without dead ends: 555 [2018-11-28 20:43:49,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-11-28 20:43:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-28 20:43:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-28 20:43:49,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-11-28 20:43:49,450 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-11-28 20:43:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:49,450 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-11-28 20:43:49,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-11-28 20:43:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:49,452 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:49,452 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 20:43:49,452 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:49,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:49,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1650638091, now seen corresponding path program 3 times [2018-11-28 20:43:49,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:49,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:49,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:49,462 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:49,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:49,587 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 20:43:49,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:49,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:49,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:49,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:49,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:49,589 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 6 states. [2018-11-28 20:43:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:49,679 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-11-28 20:43:49,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:49,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:49,681 INFO L225 Difference]: With dead ends: 427 [2018-11-28 20:43:49,681 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:49,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:49,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 20:43:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:49,682 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:49,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:49,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:49,686 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:49,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:49 BasicIcfg [2018-11-28 20:43:49,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:49,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:49,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:49,690 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:49,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:45" (3/4) ... [2018-11-28 20:43:49,694 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:49,702 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:49,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:49,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:49,708 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:49,708 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:49,771 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:49,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:49,772 INFO L168 Benchmark]: Toolchain (without parser) took 5951.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 948.7 MB in the beginning and 822.8 MB in the end (delta: 125.8 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:49,774 INFO L168 Benchmark]: CDTParser took 0.28 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 20:43:49,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:49,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.15 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:49,776 INFO L168 Benchmark]: Boogie Preprocessor took 41.86 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 20:43:49,777 INFO L168 Benchmark]: RCFGBuilder took 562.63 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:49,777 INFO L168 Benchmark]: TraceAbstraction took 4404.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 822.8 MB in the end (delta: 234.4 MB). Peak memory consumption was 234.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:49,778 INFO L168 Benchmark]: Witness Printer took 81.78 ms. Allocated memory is still 1.1 GB. Free memory is still 822.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:49,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 787.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.15 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.86 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 562.63 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4404.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 822.8 MB in the end (delta: 234.4 MB). Peak memory consumption was 234.4 MB. Max. memory is 11.5 GB. * Witness Printer took 81.78 ms. Allocated memory is still 1.1 GB. Free memory is still 822.8 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, 4.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 369 SDtfs, 419 SDslu, 1241 SDs, 0 SdLazy, 199 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s 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, 1.3s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 15223 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...