./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe012_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe012_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 9b481fef3785ee06f04487ea33ec8ac9e1fdc370 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:56:51,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:56:51,717 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:56:51,730 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:56:51,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:56:51,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:56:51,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:56:51,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:56:51,736 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:56:51,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:56:51,738 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:56:51,738 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:56:51,739 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:56:51,740 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:56:51,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:56:51,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:56:51,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:56:51,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:56:51,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:56:51,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:56:51,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:56:51,752 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:56:51,755 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:56:51,755 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:56:51,755 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:56:51,756 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:56:51,757 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:56:51,758 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:56:51,759 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:56:51,760 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:56:51,761 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:56:51,761 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:56:51,762 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:56:51,762 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:56:51,763 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:56:51,764 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:56:51,764 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:56:51,780 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:56:51,780 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:56:51,782 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:56:51,782 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:56:51,782 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:56:51,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:56:51,782 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:56:51,783 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:56:51,784 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:56:51,784 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:56:51,784 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:56:51,784 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:56:51,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:56:51,784 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:56:51,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:56:51,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:56:51,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:56:51,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:56:51,785 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:56:51,786 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:56:51,786 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:56:51,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:56:51,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:56:51,786 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 -> 9b481fef3785ee06f04487ea33ec8ac9e1fdc370 [2019-01-01 00:56:51,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:56:51,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:56:51,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:56:51,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:56:51,855 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:56:51,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe012_tso.opt_true-unreach-call.i [2019-01-01 00:56:51,929 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aa77766/4e6f2e0cef024f49a2f04541b89743e8/FLAG5990db932 [2019-01-01 00:56:52,561 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:56:52,563 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe012_tso.opt_true-unreach-call.i [2019-01-01 00:56:52,576 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aa77766/4e6f2e0cef024f49a2f04541b89743e8/FLAG5990db932 [2019-01-01 00:56:52,775 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aa77766/4e6f2e0cef024f49a2f04541b89743e8 [2019-01-01 00:56:52,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:56:52,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:56:52,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:52,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:56:52,788 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:56:52,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:52" (1/1) ... [2019-01-01 00:56:52,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:52, skipping insertion in model container [2019-01-01 00:56:52,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:56:52" (1/1) ... [2019-01-01 00:56:52,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:56:52,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:56:53,284 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:53,300 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:56:53,493 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:56:53,600 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:56:53,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53 WrapperNode [2019-01-01 00:56:53,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:56:53,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:53,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:56:53,602 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:56:53,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:56:53,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:56:53,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:56:53,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:56:53,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... [2019-01-01 00:56:53,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:56:53,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:56:53,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:56:53,694 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:56:53,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:56:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:56:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:56:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:56:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:56:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:56:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:56:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:56:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:56:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:56:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:56:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:56:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:56:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:56:53,767 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:56:54,250 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:56:54,251 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:56:54,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54 BoogieIcfgContainer [2019-01-01 00:56:54,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:56:54,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:56:54,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:56:54,257 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:56:54,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:56:52" (1/3) ... [2019-01-01 00:56:54,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312e73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:54, skipping insertion in model container [2019-01-01 00:56:54,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:56:53" (2/3) ... [2019-01-01 00:56:54,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312e73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:56:54, skipping insertion in model container [2019-01-01 00:56:54,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54" (3/3) ... [2019-01-01 00:56:54,261 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.opt_true-unreach-call.i [2019-01-01 00:56:54,299 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,299 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,299 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,300 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,300 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,300 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,302 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,302 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,302 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,302 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,303 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,303 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,303 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,303 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,303 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,304 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,304 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,304 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,304 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,304 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,306 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,306 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,306 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,306 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:56:54,344 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:56:54,344 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:56:54,354 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:56:54,372 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:56:54,398 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:56:54,399 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:56:54,399 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:56:54,399 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:56:54,399 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:56:54,400 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:56:54,400 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:56:54,400 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:56:54,400 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:56:54,410 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2019-01-01 00:56:54,556 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-01-01 00:56:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-01-01 00:56:54,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:56:54,590 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:54,592 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:54,595 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:54,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1011204503, now seen corresponding path program 1 times [2019-01-01 00:56:54,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:54,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:54,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:54,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:54,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:54,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:54,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:56:54,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:56:54,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:56:54,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:56:54,956 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-01-01 00:56:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:55,191 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-01-01 00:56:55,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:56:55,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-01-01 00:56:55,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:55,228 INFO L225 Difference]: With dead ends: 2494 [2019-01-01 00:56:55,228 INFO L226 Difference]: Without dead ends: 1129 [2019-01-01 00:56:55,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:56:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-01-01 00:56:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-01-01 00:56:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-01-01 00:56:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-01-01 00:56:55,391 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-01-01 00:56:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:55,393 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-01-01 00:56:55,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:56:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-01-01 00:56:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:56:55,402 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:55,403 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:55,403 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:55,404 INFO L82 PathProgramCache]: Analyzing trace with hash -52650827, now seen corresponding path program 1 times [2019-01-01 00:56:55,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:55,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:55,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:55,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:55,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:55,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:55,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:56:55,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:56:55,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:56:55,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:56:55,567 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-01-01 00:56:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:56,000 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-01-01 00:56:56,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:56:56,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-01-01 00:56:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:56,009 INFO L225 Difference]: With dead ends: 1169 [2019-01-01 00:56:56,009 INFO L226 Difference]: Without dead ends: 1045 [2019-01-01 00:56:56,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-01-01 00:56:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-01-01 00:56:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-01-01 00:56:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-01-01 00:56:56,048 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-01-01 00:56:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:56,049 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-01-01 00:56:56,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:56:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-01-01 00:56:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:56,052 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:56,052 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:56,052 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:56,053 INFO L82 PathProgramCache]: Analyzing trace with hash -68156749, now seen corresponding path program 1 times [2019-01-01 00:56:56,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:56,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:56,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:56,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:56,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:56,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:56:56,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:56:56,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:56:56,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:56:56,216 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-01-01 00:56:56,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:56,434 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-01-01 00:56:56,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:56,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:56:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:56,441 INFO L225 Difference]: With dead ends: 821 [2019-01-01 00:56:56,442 INFO L226 Difference]: Without dead ends: 709 [2019-01-01 00:56:56,442 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:56:56,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-01-01 00:56:56,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-01-01 00:56:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-01-01 00:56:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-01-01 00:56:56,473 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-01-01 00:56:56,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:56,474 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-01-01 00:56:56,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:56:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-01-01 00:56:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:56,477 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:56,478 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:56,478 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:56,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1158860001, now seen corresponding path program 1 times [2019-01-01 00:56:56,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:56,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:56,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:56,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:56,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:56,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:56:56,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:56:56,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:56:56,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:56,834 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-01-01 00:56:57,280 WARN L181 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-01 00:56:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:57,335 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-01-01 00:56:57,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:57,336 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-01-01 00:56:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:57,341 INFO L225 Difference]: With dead ends: 1109 [2019-01-01 00:56:57,342 INFO L226 Difference]: Without dead ends: 593 [2019-01-01 00:56:57,342 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 [2019-01-01 00:56:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-01-01 00:56:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-01-01 00:56:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-01-01 00:56:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-01-01 00:56:57,373 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-01-01 00:56:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:57,374 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-01-01 00:56:57,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:56:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-01-01 00:56:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:57,376 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:57,376 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:57,377 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:57,377 INFO L82 PathProgramCache]: Analyzing trace with hash -703513849, now seen corresponding path program 2 times [2019-01-01 00:56:57,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:57,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:57,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:57,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:56:57,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:57,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:57,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:56:57,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:56:57,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:56:57,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:56:57,720 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2019-01-01 00:56:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:58,220 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-01-01 00:56:58,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:56:58,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:56:58,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:58,231 INFO L225 Difference]: With dead ends: 977 [2019-01-01 00:56:58,231 INFO L226 Difference]: Without dead ends: 557 [2019-01-01 00:56:58,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:56:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-01-01 00:56:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-01-01 00:56:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-01-01 00:56:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-01-01 00:56:58,247 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-01-01 00:56:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:58,247 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-01-01 00:56:58,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:56:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-01-01 00:56:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:56:58,251 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:58,251 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:58,251 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:58,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1434143397, now seen corresponding path program 3 times [2019-01-01 00:56:58,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:58,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:58,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:58,256 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:56:58,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:58,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:58,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:56:58,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:56:58,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:56:58,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:56:58,440 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 7 states. [2019-01-01 00:56:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:58,612 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-01-01 00:56:58,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:56:58,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-01-01 00:56:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:58,613 INFO L225 Difference]: With dead ends: 429 [2019-01-01 00:56:58,613 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:56:58,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:56:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:56:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:56:58,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:56:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:56:58,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-01-01 00:56:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:58,615 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:56:58,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:56:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:56:58,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:56:58,619 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:56:58,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:56:58 BasicIcfg [2019-01-01 00:56:58,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:56:58,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:56:58,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:56:58,622 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:56:58,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:56:54" (3/4) ... [2019-01-01 00:56:58,626 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:56:58,635 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:56:58,635 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:56:58,635 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:56:58,641 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:56:58,641 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:56:58,697 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:56:58,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:56:58,698 INFO L168 Benchmark]: Toolchain (without parser) took 5918.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 842.9 MB in the end (delta: 108.5 MB). Peak memory consumption was 256.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,700 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:58,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:58,702 INFO L168 Benchmark]: Boogie Preprocessor took 40.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,702 INFO L168 Benchmark]: RCFGBuilder took 558.36 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,703 INFO L168 Benchmark]: TraceAbstraction took 4368.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.9 MB in the end (delta: 238.7 MB). Peak memory consumption was 238.7 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,704 INFO L168 Benchmark]: Witness Printer took 76.23 ms. Allocated memory is still 1.2 GB. Free memory was 849.9 MB in the beginning and 842.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:58,709 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 818.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.69 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. * Boogie Preprocessor took 40.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 558.36 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4368.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.9 MB in the end (delta: 238.7 MB). Peak memory consumption was 238.7 MB. Max. memory is 11.5 GB. * Witness Printer took 76.23 ms. Allocated memory is still 1.2 GB. Free memory was 849.9 MB in the beginning and 842.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 341 SDtfs, 481 SDslu, 921 SDs, 0 SdLazy, 110 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 16362 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...