./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/lazy01_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96530338 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 ../../../trunk/examples/svcomp/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 0.1.23-9653033 [2018-11-26 12:59:59,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-26 12:59:59,493 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-26 12:59:59,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-26 12:59:59,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-26 12:59:59,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-26 12:59:59,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-26 12:59:59,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-26 12:59:59,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-26 12:59:59,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-26 12:59:59,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-26 12:59:59,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-26 12:59:59,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-26 12:59:59,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-26 12:59:59,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-26 12:59:59,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-26 12:59:59,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-26 12:59:59,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-26 12:59:59,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-26 12:59:59,522 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-26 12:59:59,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-26 12:59:59,525 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-26 12:59:59,527 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-26 12:59:59,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-26 12:59:59,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-26 12:59:59,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-26 12:59:59,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-26 12:59:59,530 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-26 12:59:59,531 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-26 12:59:59,532 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-26 12:59:59,533 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-26 12:59:59,533 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-26 12:59:59,533 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-26 12:59:59,534 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-26 12:59:59,534 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-26 12:59:59,535 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-26 12:59:59,535 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-26 12:59:59,549 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-26 12:59:59,549 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-26 12:59:59,550 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-26 12:59:59,550 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-26 12:59:59,551 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-26 12:59:59,551 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-26 12:59:59,551 INFO L133 SettingsManager]: * Use SBE=true [2018-11-26 12:59:59,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-26 12:59:59,552 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-26 12:59:59,552 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-26 12:59:59,552 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-26 12:59:59,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-26 12:59:59,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-26 12:59:59,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-26 12:59:59,554 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-26 12:59:59,554 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-26 12:59:59,554 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-26 12:59:59,554 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-26 12:59:59,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-26 12:59:59,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-26 12:59:59,555 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-26 12:59:59,555 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-26 12:59:59,555 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-26 12:59:59,555 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-26 12:59:59,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-26 12:59:59,556 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 [2018-11-26 12:59:59,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-26 12:59:59,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-26 12:59:59,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-26 12:59:59,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-26 12:59:59,617 INFO L276 PluginConnector]: CDTParser initialized [2018-11-26 12:59:59,617 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01_false-unreach-call.i [2018-11-26 12:59:59,671 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e3f9dca/21374053050b407b9133eed24b7e2d36/FLAGb779db397 [2018-11-26 13:00:00,111 INFO L307 CDTParser]: Found 1 translation units. [2018-11-26 13:00:00,111 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01_false-unreach-call.i [2018-11-26 13:00:00,126 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e3f9dca/21374053050b407b9133eed24b7e2d36/FLAGb779db397 [2018-11-26 13:00:00,642 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e3f9dca/21374053050b407b9133eed24b7e2d36 [2018-11-26 13:00:00,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-26 13:00:00,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-26 13:00:00,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-26 13:00:00,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-26 13:00:00,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-26 13:00:00,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:00" (1/1) ... [2018-11-26 13:00:00,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a1fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:00, skipping insertion in model container [2018-11-26 13:00:00,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:00" (1/1) ... [2018-11-26 13:00:00,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-26 13:00:00,704 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-26 13:00:00,998 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 13:00:01,017 INFO L191 MainTranslator]: Completed pre-run [2018-11-26 13:00:01,109 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-26 13:00:01,181 INFO L195 MainTranslator]: Completed translation [2018-11-26 13:00:01,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01 WrapperNode [2018-11-26 13:00:01,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-26 13:00:01,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-26 13:00:01,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-26 13:00:01,183 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-26 13:00:01,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-26 13:00:01,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-26 13:00:01,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-26 13:00:01,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-26 13:00:01,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (1/1) ... [2018-11-26 13:00:01,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-26 13:00:01,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-26 13:00:01,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-26 13:00:01,250 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-26 13:00:01,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (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 [2018-11-26 13:00:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-26 13:00:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-26 13:00:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-11-26 13:00:01,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-11-26 13:00:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2018-11-26 13:00:01,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2018-11-26 13:00:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2018-11-26 13:00:01,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2018-11-26 13:00:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-26 13:00:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-26 13:00:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-26 13:00:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-26 13:00:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-26 13:00:01,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-26 13:00:01,303 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-26 13:00:01,595 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-26 13:00:01,595 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-26 13:00:01,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:01 BoogieIcfgContainer [2018-11-26 13:00:01,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-26 13:00:01,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-26 13:00:01,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-26 13:00:01,600 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-26 13:00:01,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:00:00" (1/3) ... [2018-11-26 13:00:01,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b777810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:01, skipping insertion in model container [2018-11-26 13:00:01,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:01" (2/3) ... [2018-11-26 13:00:01,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b777810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:01, skipping insertion in model container [2018-11-26 13:00:01,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:01" (3/3) ... [2018-11-26 13:00:01,604 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01_false-unreach-call.i [2018-11-26 13:00:01,643 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,643 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,643 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,643 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,644 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,644 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,644 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,644 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,645 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,645 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,645 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,645 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,645 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,646 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,646 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,646 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,646 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,646 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,647 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,647 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,647 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,647 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,647 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,648 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,648 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,648 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,648 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-26 13:00:01,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-26 13:00:01,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-26 13:00:01,694 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-26 13:00:01,710 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-26 13:00:01,735 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-26 13:00:01,736 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-26 13:00:01,736 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-26 13:00:01,736 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-26 13:00:01,736 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-26 13:00:01,736 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-26 13:00:01,736 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-26 13:00:01,737 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-26 13:00:01,737 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-26 13:00:01,746 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71places, 74 transitions [2018-11-26 13:00:01,944 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3562 states. [2018-11-26 13:00:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states. [2018-11-26 13:00:01,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-26 13:00:01,964 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:01,965 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] [2018-11-26 13:00:01,968 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:01,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash -394378403, now seen corresponding path program 1 times [2018-11-26 13:00:01,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:01,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:02,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:02,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:02,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:02,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:00:02,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:00:02,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:00:02,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:00:02,218 INFO L87 Difference]: Start difference. First operand 3562 states. Second operand 3 states. [2018-11-26 13:00:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:02,318 INFO L93 Difference]: Finished difference Result 3442 states and 10692 transitions. [2018-11-26 13:00:02,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:00:02,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-26 13:00:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:02,358 INFO L225 Difference]: With dead ends: 3442 [2018-11-26 13:00:02,358 INFO L226 Difference]: Without dead ends: 1949 [2018-11-26 13:00:02,360 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 [2018-11-26 13:00:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2018-11-26 13:00:02,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1949. [2018-11-26 13:00:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2018-11-26 13:00:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 5937 transitions. [2018-11-26 13:00:02,507 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 5937 transitions. Word has length 28 [2018-11-26 13:00:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:02,508 INFO L480 AbstractCegarLoop]: Abstraction has 1949 states and 5937 transitions. [2018-11-26 13:00:02,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:00:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 5937 transitions. [2018-11-26 13:00:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-26 13:00:02,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:02,515 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] [2018-11-26 13:00:02,516 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:02,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:02,517 INFO L82 PathProgramCache]: Analyzing trace with hash 696212223, now seen corresponding path program 1 times [2018-11-26 13:00:02,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:02,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:02,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:02,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:02,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:02,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-26 13:00:02,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-26 13:00:02,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-26 13:00:02,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-26 13:00:02,610 INFO L87 Difference]: Start difference. First operand 1949 states and 5937 transitions. Second operand 3 states. [2018-11-26 13:00:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:02,658 INFO L93 Difference]: Finished difference Result 1154 states and 3065 transitions. [2018-11-26 13:00:02,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-26 13:00:02,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-26 13:00:02,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:02,668 INFO L225 Difference]: With dead ends: 1154 [2018-11-26 13:00:02,669 INFO L226 Difference]: Without dead ends: 1130 [2018-11-26 13:00:02,670 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 [2018-11-26 13:00:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2018-11-26 13:00:02,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2018-11-26 13:00:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2018-11-26 13:00:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 3001 transitions. [2018-11-26 13:00:02,709 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 3001 transitions. Word has length 32 [2018-11-26 13:00:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:02,709 INFO L480 AbstractCegarLoop]: Abstraction has 1130 states and 3001 transitions. [2018-11-26 13:00:02,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-26 13:00:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 3001 transitions. [2018-11-26 13:00:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-26 13:00:02,713 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:02,713 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] [2018-11-26 13:00:02,714 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:02,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash 20900809, now seen corresponding path program 1 times [2018-11-26 13:00:02,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:02,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:02,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:02,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:02,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:02,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-26 13:00:02,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-26 13:00:02,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-26 13:00:02,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-26 13:00:02,785 INFO L87 Difference]: Start difference. First operand 1130 states and 3001 transitions. Second operand 4 states. [2018-11-26 13:00:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:02,818 INFO L93 Difference]: Finished difference Result 1082 states and 2869 transitions. [2018-11-26 13:00:02,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-26 13:00:02,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-26 13:00:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:02,827 INFO L225 Difference]: With dead ends: 1082 [2018-11-26 13:00:02,827 INFO L226 Difference]: Without dead ends: 1034 [2018-11-26 13:00:02,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-26 13:00:02,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2018-11-26 13:00:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2018-11-26 13:00:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-11-26 13:00:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 2737 transitions. [2018-11-26 13:00:02,861 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 2737 transitions. Word has length 33 [2018-11-26 13:00:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:02,862 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 2737 transitions. [2018-11-26 13:00:02,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-26 13:00:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 2737 transitions. [2018-11-26 13:00:02,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-26 13:00:02,865 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:02,865 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, 1, 1] [2018-11-26 13:00:02,865 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:02,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:02,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1031685749, now seen corresponding path program 1 times [2018-11-26 13:00:02,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:02,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:02,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:02,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-26 13:00:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-26 13:00:02,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-26 13:00:02,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-26 13:00:02,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-26 13:00:02,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-26 13:00:02,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-26 13:00:02,946 INFO L87 Difference]: Start difference. First operand 1034 states and 2737 transitions. Second operand 5 states. [2018-11-26 13:00:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-26 13:00:03,003 INFO L93 Difference]: Finished difference Result 986 states and 2605 transitions. [2018-11-26 13:00:03,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-26 13:00:03,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-26 13:00:03,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-26 13:00:03,010 INFO L225 Difference]: With dead ends: 986 [2018-11-26 13:00:03,011 INFO L226 Difference]: Without dead ends: 938 [2018-11-26 13:00:03,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-26 13:00:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2018-11-26 13:00:03,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2018-11-26 13:00:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2018-11-26 13:00:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2473 transitions. [2018-11-26 13:00:03,040 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2473 transitions. Word has length 35 [2018-11-26 13:00:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-26 13:00:03,040 INFO L480 AbstractCegarLoop]: Abstraction has 938 states and 2473 transitions. [2018-11-26 13:00:03,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-26 13:00:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2473 transitions. [2018-11-26 13:00:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-26 13:00:03,043 INFO L394 BasicCegarLoop]: Found error trace [2018-11-26 13:00:03,043 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] [2018-11-26 13:00:03,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-26 13:00:03,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-26 13:00:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1697614985, now seen corresponding path program 1 times [2018-11-26 13:00:03,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-26 13:00:03,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-26 13:00:03,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:03,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-26 13:00:03,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-26 13:00:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 13:00:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-26 13:00:03,107 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-26 13:00:03,159 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-26 13:00:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:00:03 BasicIcfg [2018-11-26 13:00:03,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-26 13:00:03,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-26 13:00:03,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-26 13:00:03,162 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-26 13:00:03,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:01" (3/4) ... [2018-11-26 13:00:03,165 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-26 13:00:03,229 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-26 13:00:03,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-26 13:00:03,230 INFO L168 Benchmark]: Toolchain (without parser) took 2583.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 949.2 MB in the beginning and 853.6 MB in the end (delta: 95.6 MB). Peak memory consumption was 194.1 MB. Max. memory is 11.5 GB. [2018-11-26 13:00:03,232 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 13:00:03,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-26 13:00:03,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 13:00:03,235 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-26 13:00:03,235 INFO L168 Benchmark]: RCFGBuilder took 346.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-26 13:00:03,236 INFO L168 Benchmark]: TraceAbstraction took 1564.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 860.5 MB in the end (delta: 179.1 MB). Peak memory consumption was 179.1 MB. Max. memory is 11.5 GB. [2018-11-26 13:00:03,237 INFO L168 Benchmark]: Witness Printer took 67.63 ms. Allocated memory is still 1.1 GB. Free memory was 860.5 MB in the beginning and 853.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-26 13:00:03,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 534.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 346.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1564.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 860.5 MB in the end (delta: 179.1 MB). Peak memory consumption was 179.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.63 ms. Allocated memory is still 1.1 GB. Free memory was 860.5 MB in the beginning and 853.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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={27:0}] [L1218] -1 int data = 0; VAL [data=0, mutex={27:0}] [L1254] -1 pthread_t t1, t2, t3; VAL [data=0, mutex={27:0}] [L1256] FCALL, FORK -1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={27:0}] [L1257] FCALL, FORK -1 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={27:0}] [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={27:0}] [L1232] 0 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={27:0}] [L1223] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1241] COND TRUE 2 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1242] 2 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 2 error locations. UNSAFE Result, 1.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 262 SDtfs, 151 SDslu, 307 SDs, 0 SdLazy, 43 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s 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, 0.0s SatisfiabilityAnalysisTime, 0.2s 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...