./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa27234b6891ef3bbfb94c7917d5d03a30432f2b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:44:12,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:44:12,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:44:12,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:44:12,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:44:12,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:44:12,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:44:12,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:44:12,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:44:12,428 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:44:12,429 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:44:12,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:44:12,430 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:44:12,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:44:12,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:44:12,433 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:44:12,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:44:12,436 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:44:12,439 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:44:12,441 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:44:12,442 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:44:12,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:44:12,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:44:12,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:44:12,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:44:12,454 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:44:12,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:44:12,461 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:44:12,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:44:12,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:44:12,466 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:44:12,467 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:44:12,467 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:44:12,467 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:44:12,470 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:44:12,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:44:12,473 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:44:12,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:44:12,502 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:44:12,503 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:44:12,503 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:44:12,504 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:44:12,504 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:44:12,504 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:44:12,505 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:44:12,505 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:44:12,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:44:12,506 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:44:12,508 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:44:12,508 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:44:12,508 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:44:12,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:44:12,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:44:12,509 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:44:12,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:44:12,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:12,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:44:12,510 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:44:12,511 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:44:12,511 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:44:12,511 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:44:12,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:44:12,511 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 -> aa27234b6891ef3bbfb94c7917d5d03a30432f2b [2018-11-28 20:44:12,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:44:12,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:44:12,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:44:12,586 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:44:12,587 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:44:12,587 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc_true-unreach-call.i [2018-11-28 20:44:12,659 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ed6265/1762f0a8792f470db2eff885842db6fe/FLAGa0aef85f4 [2018-11-28 20:44:13,230 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:44:13,231 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc_true-unreach-call.i [2018-11-28 20:44:13,251 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ed6265/1762f0a8792f470db2eff885842db6fe/FLAGa0aef85f4 [2018-11-28 20:44:13,457 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ed6265/1762f0a8792f470db2eff885842db6fe [2018-11-28 20:44:13,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:44:13,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:44:13,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:13,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:44:13,467 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:44:13,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:13" (1/1) ... [2018-11-28 20:44:13,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4672fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:13, skipping insertion in model container [2018-11-28 20:44:13,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:13" (1/1) ... [2018-11-28 20:44:13,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:44:13,525 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:44:14,028 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:14,050 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:44:14,130 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:14,290 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:44:14,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14 WrapperNode [2018-11-28 20:44:14,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:14,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:14,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:44:14,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:44:14,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:14,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:44:14,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:44:14,352 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:44:14,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:44:14,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:44:14,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:44:14,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:44:14,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:44:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:44:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:44:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:44:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:44:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:44:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:44:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:44:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:44:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:44:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:44:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:44:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:44:14,458 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 20:44:14,917 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:44:14,917 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:44:14,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:14 BoogieIcfgContainer [2018-11-28 20:44:14,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:44:14,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:44:14,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:44:14,922 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:44:14,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:44:13" (1/3) ... [2018-11-28 20:44:14,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f393ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:14, skipping insertion in model container [2018-11-28 20:44:14,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14" (2/3) ... [2018-11-28 20:44:14,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f393ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:14, skipping insertion in model container [2018-11-28 20:44:14,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:14" (3/3) ... [2018-11-28 20:44:14,926 INFO L112 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc_true-unreach-call.i [2018-11-28 20:44:14,962 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,963 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,963 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,964 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,964 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,964 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,965 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,965 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,965 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,965 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,965 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,966 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,967 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,971 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,971 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:14,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:15,006 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:44:15,007 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:44:15,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:44:15,033 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:44:15,057 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:44:15,058 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:44:15,058 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:44:15,058 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:44:15,059 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:44:15,059 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:44:15,059 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:44:15,059 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:44:15,059 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:44:15,069 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2018-11-28 20:44:15,206 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2018-11-28 20:44:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2018-11-28 20:44:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:44:15,238 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:15,241 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 20:44:15,244 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:15,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:15,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1011204503, now seen corresponding path program 1 times [2018-11-28 20:44:15,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:15,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:15,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:15,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:15,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:15,601 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 20:44:15,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:15,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:44:15,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:44:15,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:44:15,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:44:15,630 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2018-11-28 20:44:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:15,841 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2018-11-28 20:44:15,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:44:15,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-28 20:44:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:15,877 INFO L225 Difference]: With dead ends: 2494 [2018-11-28 20:44:15,878 INFO L226 Difference]: Without dead ends: 1129 [2018-11-28 20:44:15,880 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 20:44:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2018-11-28 20:44:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2018-11-28 20:44:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2018-11-28 20:44:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2018-11-28 20:44:16,028 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2018-11-28 20:44:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:16,029 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2018-11-28 20:44:16,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:44:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2018-11-28 20:44:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:44:16,041 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:16,041 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 20:44:16,042 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:16,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:16,042 INFO L82 PathProgramCache]: Analyzing trace with hash -52650827, now seen corresponding path program 1 times [2018-11-28 20:44:16,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:16,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:16,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:16,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:16,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:16,337 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 20:44:16,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:16,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:16,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:16,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:16,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:16,340 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2018-11-28 20:44:16,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:16,796 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2018-11-28 20:44:16,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:44:16,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-28 20:44:16,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:16,808 INFO L225 Difference]: With dead ends: 1169 [2018-11-28 20:44:16,809 INFO L226 Difference]: Without dead ends: 1045 [2018-11-28 20:44:16,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:44:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-11-28 20:44:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2018-11-28 20:44:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-11-28 20:44:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2018-11-28 20:44:16,858 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2018-11-28 20:44:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:16,859 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2018-11-28 20:44:16,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2018-11-28 20:44:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:44:16,865 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:16,865 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 20:44:16,866 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:16,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:16,866 INFO L82 PathProgramCache]: Analyzing trace with hash -68156749, now seen corresponding path program 1 times [2018-11-28 20:44:16,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:16,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:16,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:16,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:16,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:17,014 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 20:44:17,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:17,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:44:17,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:44:17,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:44:17,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:44:17,016 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2018-11-28 20:44:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:17,256 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2018-11-28 20:44:17,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:44:17,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-28 20:44:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:17,263 INFO L225 Difference]: With dead ends: 821 [2018-11-28 20:44:17,264 INFO L226 Difference]: Without dead ends: 709 [2018-11-28 20:44:17,264 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 20:44:17,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-11-28 20:44:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2018-11-28 20:44:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2018-11-28 20:44:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2018-11-28 20:44:17,291 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2018-11-28 20:44:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:17,291 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2018-11-28 20:44:17,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:44:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2018-11-28 20:44:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:44:17,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:17,295 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] [2018-11-28 20:44:17,295 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:17,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:17,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1158860001, now seen corresponding path program 1 times [2018-11-28 20:44:17,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:17,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:17,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:17,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:17,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:17,489 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 20:44:17,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:17,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:17,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:17,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:17,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:17,491 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2018-11-28 20:44:18,015 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-11-28 20:44:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:18,297 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2018-11-28 20:44:18,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:44:18,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-28 20:44:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:18,306 INFO L225 Difference]: With dead ends: 1109 [2018-11-28 20:44:18,306 INFO L226 Difference]: Without dead ends: 593 [2018-11-28 20:44:18,307 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:44:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2018-11-28 20:44:18,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2018-11-28 20:44:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-11-28 20:44:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2018-11-28 20:44:18,330 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2018-11-28 20:44:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:18,330 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2018-11-28 20:44:18,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2018-11-28 20:44:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:44:18,334 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:18,334 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] [2018-11-28 20:44:18,335 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:18,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:18,336 INFO L82 PathProgramCache]: Analyzing trace with hash -703513849, now seen corresponding path program 2 times [2018-11-28 20:44:18,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:18,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:18,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:18,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:18,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:18,610 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 20:44:18,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:18,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:18,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:18,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:18,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:18,613 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2018-11-28 20:44:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:19,255 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2018-11-28 20:44:19,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:44:19,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-28 20:44:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:19,266 INFO L225 Difference]: With dead ends: 977 [2018-11-28 20:44:19,266 INFO L226 Difference]: Without dead ends: 557 [2018-11-28 20:44:19,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:44:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-28 20:44:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2018-11-28 20:44:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2018-11-28 20:44:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2018-11-28 20:44:19,285 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2018-11-28 20:44:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,286 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2018-11-28 20:44:19,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2018-11-28 20:44:19,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:44:19,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:19,290 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] [2018-11-28 20:44:19,290 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:19,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:19,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1434143397, now seen corresponding path program 3 times [2018-11-28 20:44:19,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:19,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:19,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,299 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:44:19,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:19,497 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 20:44:19,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:19,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:19,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:19,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:19,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:19,499 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2018-11-28 20:44:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:19,743 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2018-11-28 20:44:19,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:44:19,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-28 20:44:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:19,744 INFO L225 Difference]: With dead ends: 429 [2018-11-28 20:44:19,744 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:44:19,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:44:19,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:44:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:44:19,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:44:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:44:19,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-28 20:44:19,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,746 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:44:19,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:19,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:44:19,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:44:19,749 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:44:19,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:44:19 BasicIcfg [2018-11-28 20:44:19,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:44:19,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:44:19,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:44:19,752 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:44:19,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:14" (3/4) ... [2018-11-28 20:44:19,757 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:44:19,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:44:19,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:44:19,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:44:19,770 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:44:19,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:44:19,819 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:44:19,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:44:19,820 INFO L168 Benchmark]: Toolchain (without parser) took 6358.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 824.7 MB in the end (delta: 122.6 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,821 INFO L168 Benchmark]: CDTParser took 0.17 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 20:44:19,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,823 INFO L168 Benchmark]: Boogie Preprocessor took 32.85 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 20:44:19,824 INFO L168 Benchmark]: RCFGBuilder took 533.28 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,824 INFO L168 Benchmark]: TraceAbstraction took 4832.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.4 MB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,825 INFO L168 Benchmark]: Witness Printer took 67.37 ms. Allocated memory is still 1.2 GB. Free memory was 831.4 MB in the beginning and 824.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:19,830 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 828.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.85 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 533.28 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4832.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.4 MB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.37 ms. Allocated memory is still 1.2 GB. Free memory was 831.4 MB in the beginning and 824.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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, 4.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 567 SDslu, 871 SDs, 0 SdLazy, 117 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s 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, 1.1s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17847 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...