./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread/lazy01_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/lazy01_false-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 61886a16eaa9879254fb15413029565914aacace ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 22:16:50,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 22:16:50,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 22:16:50,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 22:16:50,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 22:16:50,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 22:16:50,406 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 22:16:50,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 22:16:50,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 22:16:50,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 22:16:50,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 22:16:50,412 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 22:16:50,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 22:16:50,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 22:16:50,416 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 22:16:50,417 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 22:16:50,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 22:16:50,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 22:16:50,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 22:16:50,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 22:16:50,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 22:16:50,427 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 22:16:50,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 22:16:50,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 22:16:50,431 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 22:16:50,432 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 22:16:50,433 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 22:16:50,436 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 22:16:50,437 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 22:16:50,440 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 22:16:50,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 22:16:50,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 22:16:50,443 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 22:16:50,443 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 22:16:50,446 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 22:16:50,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 22:16:50,449 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 22:16:50,479 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 22:16:50,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 22:16:50,481 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 22:16:50,484 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 22:16:50,485 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 22:16:50,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 22:16:50,485 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 22:16:50,485 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 22:16:50,485 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 22:16:50,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 22:16:50,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 22:16:50,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 22:16:50,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 22:16:50,488 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 22:16:50,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 22:16:50,489 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 22:16:50,489 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 22:16:50,489 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 22:16:50,489 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 22:16:50,489 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 22:16:50,489 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 22:16:50,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 22:16:50,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 22:16:50,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 22:16:50,490 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 22:16:50,490 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 22:16:50,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 22:16:50,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 22:16:50,493 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 -> 61886a16eaa9879254fb15413029565914aacace [2019-01-12 22:16:50,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 22:16:50,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 22:16:50,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 22:16:50,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 22:16:50,582 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 22:16:50,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread/lazy01_false-unreach-call.i [2019-01-12 22:16:50,647 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6f3d49bc/d52e6165b9f146719959e85d1d2b524b/FLAG63bda615d [2019-01-12 22:16:51,137 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 22:16:51,137 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread/lazy01_false-unreach-call.i [2019-01-12 22:16:51,153 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6f3d49bc/d52e6165b9f146719959e85d1d2b524b/FLAG63bda615d [2019-01-12 22:16:51,431 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6f3d49bc/d52e6165b9f146719959e85d1d2b524b [2019-01-12 22:16:51,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 22:16:51,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 22:16:51,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 22:16:51,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 22:16:51,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 22:16:51,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:16:51" (1/1) ... [2019-01-12 22:16:51,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1993ede3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:51, skipping insertion in model container [2019-01-12 22:16:51,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:16:51" (1/1) ... [2019-01-12 22:16:51,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 22:16:51,514 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 22:16:51,974 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:16:52,014 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 22:16:52,165 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:16:52,279 INFO L195 MainTranslator]: Completed translation [2019-01-12 22:16:52,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52 WrapperNode [2019-01-12 22:16:52,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 22:16:52,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 22:16:52,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 22:16:52,282 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 22:16:52,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 22:16:52,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 22:16:52,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 22:16:52,354 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 22:16:52,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... [2019-01-12 22:16:52,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 22:16:52,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 22:16:52,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 22:16:52,402 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 22:16:52,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 22:16:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 22:16:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-01-12 22:16:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-01-12 22:16:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-01-12 22:16:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-01-12 22:16:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2019-01-12 22:16:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2019-01-12 22:16:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 22:16:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-01-12 22:16:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 22:16:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 22:16:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 22:16:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 22:16:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 22:16:52,475 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-12 22:16:53,110 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 22:16:53,111 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 22:16:53,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:16:53 BoogieIcfgContainer [2019-01-12 22:16:53,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 22:16:53,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 22:16:53,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 22:16:53,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 22:16:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 10:16:51" (1/3) ... [2019-01-12 22:16:53,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638a23c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:16:53, skipping insertion in model container [2019-01-12 22:16:53,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:16:52" (2/3) ... [2019-01-12 22:16:53,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638a23c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:16:53, skipping insertion in model container [2019-01-12 22:16:53,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:16:53" (3/3) ... [2019-01-12 22:16:53,120 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01_false-unreach-call.i [2019-01-12 22:16:53,156 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,156 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,157 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,157 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,157 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,157 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,158 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,158 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,158 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,159 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,159 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,159 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,159 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,160 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,160 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,160 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,160 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,160 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,161 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,161 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,161 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,161 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,161 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,162 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,162 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,162 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,162 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:16:53,314 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-12 22:16:53,314 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 22:16:53,331 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-12 22:16:53,349 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-12 22:16:53,384 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 22:16:53,384 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 22:16:53,384 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 22:16:53,385 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 22:16:53,385 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 22:16:53,385 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 22:16:53,385 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 22:16:53,385 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 22:16:53,385 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 22:16:53,395 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71places, 74 transitions [2019-01-12 22:16:53,586 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3562 states. [2019-01-12 22:16:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states. [2019-01-12 22:16:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 22:16:53,607 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:16:53,608 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] [2019-01-12 22:16:53,610 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:16:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:16:53,617 INFO L82 PathProgramCache]: Analyzing trace with hash -394378403, now seen corresponding path program 1 times [2019-01-12 22:16:53,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:16:53,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:16:53,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:53,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:16:53,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:16:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:16:53,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:16:53,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:16:53,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:16:53,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:16:53,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:16:53,942 INFO L87 Difference]: Start difference. First operand 3562 states. Second operand 3 states. [2019-01-12 22:16:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:16:54,064 INFO L93 Difference]: Finished difference Result 3442 states and 10692 transitions. [2019-01-12 22:16:54,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:16:54,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-01-12 22:16:54,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:16:54,117 INFO L225 Difference]: With dead ends: 3442 [2019-01-12 22:16:54,118 INFO L226 Difference]: Without dead ends: 1949 [2019-01-12 22:16:54,119 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:16:54,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2019-01-12 22:16:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1949. [2019-01-12 22:16:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2019-01-12 22:16:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 5937 transitions. [2019-01-12 22:16:54,295 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 5937 transitions. Word has length 28 [2019-01-12 22:16:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:16:54,296 INFO L480 AbstractCegarLoop]: Abstraction has 1949 states and 5937 transitions. [2019-01-12 22:16:54,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:16:54,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 5937 transitions. [2019-01-12 22:16:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-12 22:16:54,302 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:16:54,303 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:16:54,303 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:16:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:16:54,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1936380735, now seen corresponding path program 1 times [2019-01-12 22:16:54,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:16:54,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:16:54,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:54,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:16:54,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:16:54,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:16:54,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:16:54,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:16:54,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:16:54,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:16:54,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:16:54,532 INFO L87 Difference]: Start difference. First operand 1949 states and 5937 transitions. Second operand 3 states. [2019-01-12 22:16:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:16:54,674 INFO L93 Difference]: Finished difference Result 1154 states and 3065 transitions. [2019-01-12 22:16:54,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:16:54,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-01-12 22:16:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:16:54,683 INFO L225 Difference]: With dead ends: 1154 [2019-01-12 22:16:54,684 INFO L226 Difference]: Without dead ends: 1130 [2019-01-12 22:16:54,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:16:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2019-01-12 22:16:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2019-01-12 22:16:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2019-01-12 22:16:54,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 3001 transitions. [2019-01-12 22:16:54,723 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 3001 transitions. Word has length 32 [2019-01-12 22:16:54,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:16:54,724 INFO L480 AbstractCegarLoop]: Abstraction has 1130 states and 3001 transitions. [2019-01-12 22:16:54,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:16:54,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 3001 transitions. [2019-01-12 22:16:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-12 22:16:54,727 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:16:54,727 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:16:54,727 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:16:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:16:54,728 INFO L82 PathProgramCache]: Analyzing trace with hash -188580983, now seen corresponding path program 1 times [2019-01-12 22:16:54,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:16:54,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:16:54,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:54,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:16:54,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:16:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:16:54,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:16:54,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 22:16:54,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 22:16:54,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 22:16:54,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:16:54,947 INFO L87 Difference]: Start difference. First operand 1130 states and 3001 transitions. Second operand 4 states. [2019-01-12 22:16:55,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:16:55,105 INFO L93 Difference]: Finished difference Result 1082 states and 2869 transitions. [2019-01-12 22:16:55,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 22:16:55,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-01-12 22:16:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:16:55,116 INFO L225 Difference]: With dead ends: 1082 [2019-01-12 22:16:55,117 INFO L226 Difference]: Without dead ends: 1034 [2019-01-12 22:16:55,117 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:16:55,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2019-01-12 22:16:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2019-01-12 22:16:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2019-01-12 22:16:55,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 2737 transitions. [2019-01-12 22:16:55,165 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 2737 transitions. Word has length 33 [2019-01-12 22:16:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:16:55,166 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 2737 transitions. [2019-01-12 22:16:55,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 22:16:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 2737 transitions. [2019-01-12 22:16:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-01-12 22:16:55,169 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:16:55,169 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, 1] [2019-01-12 22:16:55,169 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:16:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:16:55,170 INFO L82 PathProgramCache]: Analyzing trace with hash -65217093, now seen corresponding path program 1 times [2019-01-12 22:16:55,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:16:55,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:16:55,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:55,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:16:55,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:16:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:16:55,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:16:55,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 22:16:55,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 22:16:55,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 22:16:55,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 22:16:55,453 INFO L87 Difference]: Start difference. First operand 1034 states and 2737 transitions. Second operand 5 states. [2019-01-12 22:16:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:16:55,895 INFO L93 Difference]: Finished difference Result 986 states and 2605 transitions. [2019-01-12 22:16:55,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 22:16:55,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-01-12 22:16:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:16:55,904 INFO L225 Difference]: With dead ends: 986 [2019-01-12 22:16:55,905 INFO L226 Difference]: Without dead ends: 938 [2019-01-12 22:16:55,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-12 22:16:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2019-01-12 22:16:55,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2019-01-12 22:16:55,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2019-01-12 22:16:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2473 transitions. [2019-01-12 22:16:55,936 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2473 transitions. Word has length 35 [2019-01-12 22:16:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:16:55,937 INFO L480 AbstractCegarLoop]: Abstraction has 938 states and 2473 transitions. [2019-01-12 22:16:55,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 22:16:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2473 transitions. [2019-01-12 22:16:55,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-01-12 22:16:55,941 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:16:55,941 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, 1, 1, 1, 1, 1, 1] [2019-01-12 22:16:55,942 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:16:55,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:16:55,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2010995727, now seen corresponding path program 1 times [2019-01-12 22:16:55,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:16:55,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:16:55,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:55,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:16:55,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:16:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 22:16:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 22:16:56,029 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 22:16:56,089 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-12 22:16:56,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 10:16:56 BasicIcfg [2019-01-12 22:16:56,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 22:16:56,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 22:16:56,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 22:16:56,092 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 22:16:56,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:16:53" (3/4) ... [2019-01-12 22:16:56,095 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 22:16:56,179 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 22:16:56,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 22:16:56,181 INFO L168 Benchmark]: Toolchain (without parser) took 4745.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 954.0 MB in the beginning and 910.0 MB in the end (delta: 44.1 MB). Peak memory consumption was 184.1 MB. Max. memory is 11.5 GB. [2019-01-12 22:16:56,182 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:16:56,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2019-01-12 22:16:56,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:16:56,184 INFO L168 Benchmark]: Boogie Preprocessor took 48.06 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. [2019-01-12 22:16:56,185 INFO L168 Benchmark]: RCFGBuilder took 710.33 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-01-12 22:16:56,186 INFO L168 Benchmark]: TraceAbstraction took 2978.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.6 MB in the end (delta: 167.0 MB). Peak memory consumption was 167.0 MB. Max. memory is 11.5 GB. [2019-01-12 22:16:56,187 INFO L168 Benchmark]: Witness Printer took 87.58 ms. Allocated memory is still 1.2 GB. Free memory was 916.6 MB in the beginning and 910.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 22:16:56,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 843.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.06 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. * RCFGBuilder took 710.33 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2978.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.6 MB in the end (delta: 167.0 MB). Peak memory consumption was 167.0 MB. Max. memory is 11.5 GB. * Witness Printer took 87.58 ms. Allocated memory is still 1.2 GB. Free memory was 916.6 MB in the beginning and 910.0 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: - CounterExampleResult [Line: 1242]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1217] -1 pthread_mutex_t mutex; VAL [mutex={1:0}] [L1218] -1 int data = 0; VAL [data=0, mutex={1:0}] [L1254] -1 pthread_t t1, t2, t3; VAL [data=0, mutex={1:0}] [L1256] FCALL, FORK -1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={1:0}] [L1257] FCALL, FORK -1 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={1:0}] [L1258] FCALL, FORK -1 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={1:0}] [L1232] 0 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={1:0}] [L1223] 2 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={1:0}] [L1241] COND TRUE 1 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={1:0}] [L1242] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 2 error locations. UNSAFE Result, 2.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 262 SDtfs, 153 SDslu, 307 SDs, 0 SdLazy, 43 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3562occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 8944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...