./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe013_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/safe013_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 58151011fc46d05694dde82d621eb0d53c43b58a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:43:01,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:01,694 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:01,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:01,713 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:01,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:01,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:01,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:01,729 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:01,730 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:01,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:01,731 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:01,738 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:01,739 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:01,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:01,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:01,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:01,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:01,753 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:01,758 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:01,763 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:01,766 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:01,772 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:01,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:01,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:01,778 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:01,782 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:01,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:01,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:01,787 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:01,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:01,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:01,791 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:01,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:01,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:01,797 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:01,798 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:01,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:01,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:01,821 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:01,821 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:01,822 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:01,823 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:01,823 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:01,823 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:01,823 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:01,824 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:01,826 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:01,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:01,827 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:01,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:01,827 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:01,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:01,828 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:01,830 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:01,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:01,830 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:01,830 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:01,831 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:01,831 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:01,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:01,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:01,832 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 -> 58151011fc46d05694dde82d621eb0d53c43b58a [2018-11-28 20:43:01,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:01,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:01,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:01,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:01,928 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:01,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe013_tso.opt_true-unreach-call.i [2018-11-28 20:43:02,005 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69488a8/5ed8beb5429641deaf65aa8d09975be0/FLAG2f4f08d23 [2018-11-28 20:43:02,566 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:02,567 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe013_tso.opt_true-unreach-call.i [2018-11-28 20:43:02,584 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69488a8/5ed8beb5429641deaf65aa8d09975be0/FLAG2f4f08d23 [2018-11-28 20:43:02,838 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69488a8/5ed8beb5429641deaf65aa8d09975be0 [2018-11-28 20:43:02,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:02,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:02,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:02,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:02,849 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:02,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:02" (1/1) ... [2018-11-28 20:43:02,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d052f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:02, skipping insertion in model container [2018-11-28 20:43:02,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:02" (1/1) ... [2018-11-28 20:43:02,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:02,911 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:03,352 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:03,378 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:03,462 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:03,645 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:03,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03 WrapperNode [2018-11-28 20:43:03,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:03,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:03,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:03,647 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:03,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:03,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:03,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:03,717 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:03,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (1/1) ... [2018-11-28 20:43:03,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:03,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:03,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:03,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:03,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (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 20:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:03,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:03,828 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 20:43:04,298 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:04,299 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:04,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:04 BoogieIcfgContainer [2018-11-28 20:43:04,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:04,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:04,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:04,305 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:04,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:02" (1/3) ... [2018-11-28 20:43:04,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45177bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:04, skipping insertion in model container [2018-11-28 20:43:04,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:03" (2/3) ... [2018-11-28 20:43:04,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45177bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:04, skipping insertion in model container [2018-11-28 20:43:04,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:04" (3/3) ... [2018-11-28 20:43:04,310 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt_true-unreach-call.i [2018-11-28 20:43:04,346 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,347 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,347 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,347 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,350 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,351 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,352 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,352 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,353 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,354 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,355 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,356 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:04,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:04,397 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:04,404 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:04,423 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:04,447 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:04,448 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:04,448 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:04,448 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:04,448 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:04,448 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:04,448 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:04,449 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:04,449 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:04,459 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-28 20:43:04,625 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-28 20:43:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-28 20:43:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:04,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:04,659 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 20:43:04,662 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:04,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:04,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1744186637, now seen corresponding path program 1 times [2018-11-28 20:43:04,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:04,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:04,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:04,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:04,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:05,056 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 20:43:05,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:05,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:05,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:05,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:05,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:05,082 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-28 20:43:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:05,382 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-28 20:43:05,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:05,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-28 20:43:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:05,423 INFO L225 Difference]: With dead ends: 2493 [2018-11-28 20:43:05,423 INFO L226 Difference]: Without dead ends: 1128 [2018-11-28 20:43:05,425 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 [2018-11-28 20:43:05,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-28 20:43:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-28 20:43:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-28 20:43:05,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-28 20:43:05,578 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-28 20:43:05,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:05,579 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-28 20:43:05,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-28 20:43:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:05,588 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:05,588 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 20:43:05,588 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:05,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:05,589 INFO L82 PathProgramCache]: Analyzing trace with hash -334973677, now seen corresponding path program 1 times [2018-11-28 20:43:05,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:05,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:05,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:05,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:05,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:05,828 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 20:43:05,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:05,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:05,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:05,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:05,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:05,832 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-28 20:43:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:06,036 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-28 20:43:06,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:06,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 20:43:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:06,047 INFO L225 Difference]: With dead ends: 1168 [2018-11-28 20:43:06,047 INFO L226 Difference]: Without dead ends: 1044 [2018-11-28 20:43:06,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-28 20:43:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-28 20:43:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-28 20:43:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-28 20:43:06,094 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-28 20:43:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:06,094 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-28 20:43:06,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-28 20:43:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:06,099 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:06,099 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 20:43:06,099 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:06,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:06,099 INFO L82 PathProgramCache]: Analyzing trace with hash -419098213, now seen corresponding path program 1 times [2018-11-28 20:43:06,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:06,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:06,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:06,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:06,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:06,277 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 20:43:06,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:06,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:06,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:06,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:06,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:06,279 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-28 20:43:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:06,554 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-28 20:43:06,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:06,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:06,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:06,562 INFO L225 Difference]: With dead ends: 820 [2018-11-28 20:43:06,562 INFO L226 Difference]: Without dead ends: 708 [2018-11-28 20:43:06,563 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 [2018-11-28 20:43:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-28 20:43:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-28 20:43:06,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-28 20:43:06,589 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-28 20:43:06,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:06,590 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-28 20:43:06,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-28 20:43:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:06,593 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:06,593 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:06,594 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:06,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:06,594 INFO L82 PathProgramCache]: Analyzing trace with hash -65707493, now seen corresponding path program 1 times [2018-11-28 20:43:06,594 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:06,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:06,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:06,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:06,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:06,817 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 20:43:06,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:06,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:06,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:06,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:06,819 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-28 20:43:07,332 WARN L180 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-11-28 20:43:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:07,585 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2018-11-28 20:43:07,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:43:07,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:07,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:07,594 INFO L225 Difference]: With dead ends: 1108 [2018-11-28 20:43:07,594 INFO L226 Difference]: Without dead ends: 592 [2018-11-28 20:43:07,595 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-28 20:43:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2018-11-28 20:43:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-11-28 20:43:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2018-11-28 20:43:07,617 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2018-11-28 20:43:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:07,618 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2018-11-28 20:43:07,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2018-11-28 20:43:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:07,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:07,624 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:07,624 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:07,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:07,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1611050813, now seen corresponding path program 2 times [2018-11-28 20:43:07,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:07,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:07,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:07,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:07,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:07,906 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 20:43:07,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:07,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:43:07,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:43:07,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:43:07,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:43:07,908 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 8 states. [2018-11-28 20:43:08,152 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 20:43:08,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:08,438 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2018-11-28 20:43:08,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 20:43:08,442 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-28 20:43:08,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:08,448 INFO L225 Difference]: With dead ends: 976 [2018-11-28 20:43:08,448 INFO L226 Difference]: Without dead ends: 556 [2018-11-28 20:43:08,448 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 [2018-11-28 20:43:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-28 20:43:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-28 20:43:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-28 20:43:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-28 20:43:08,468 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-28 20:43:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:08,469 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-28 20:43:08,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:43:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-28 20:43:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:08,472 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:08,473 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:08,473 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:08,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:08,473 INFO L82 PathProgramCache]: Analyzing trace with hash 839173695, now seen corresponding path program 3 times [2018-11-28 20:43:08,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:08,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:08,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:08,478 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:08,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:08,628 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 20:43:08,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:08,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:08,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:08,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:08,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:08,629 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-28 20:43:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:08,757 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-28 20:43:08,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:08,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:08,758 INFO L225 Difference]: With dead ends: 428 [2018-11-28 20:43:08,758 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:08,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:08,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:08,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 20:43:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:08,760 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:08,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:08,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:08,764 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:08,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:08 BasicIcfg [2018-11-28 20:43:08,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:08,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:08,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:08,766 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:08,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:04" (3/4) ... [2018-11-28 20:43:08,776 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:08,785 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:08,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:08,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:08,792 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:08,792 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:08,846 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:08,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:08,848 INFO L168 Benchmark]: Toolchain (without parser) took 6005.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 853.4 MB in the end (delta: 92.6 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:08,849 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:08,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:08,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:08,851 INFO L168 Benchmark]: Boogie Preprocessor took 30.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:08,851 INFO L168 Benchmark]: RCFGBuilder took 552.59 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:08,852 INFO L168 Benchmark]: TraceAbstraction took 4464.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 247.2 MB). Peak memory consumption was 247.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:08,853 INFO L168 Benchmark]: Witness Printer took 80.65 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:08,857 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 801.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 552.59 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4464.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 247.2 MB). Peak memory consumption was 247.2 MB. Max. memory is 11.5 GB. * Witness Printer took 80.65 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 353 SDtfs, 464 SDslu, 966 SDs, 0 SdLazy, 109 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 14718 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...