./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:51:51,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:51:51,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:51:51,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:51:51,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:51:51,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:51:51,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:51:51,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:51:51,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:51:51,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:51:51,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:51:51,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:51:51,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:51:51,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:51:51,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:51:51,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:51:51,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:51:51,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:51:51,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:51:51,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:51:51,731 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:51:51,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:51:51,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:51:51,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:51:51,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:51:51,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:51:51,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:51:51,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:51:51,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:51:51,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:51:51,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:51:51,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:51:51,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:51:51,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:51:51,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:51:51,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:51:51,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:51:51,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:51:51,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:51:51,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:51:51,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:51:51,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:51:51,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:51:51,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:51:51,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:51:51,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:51:51,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:51:51,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:51:51,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:51:51,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:51:51,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:51:51,785 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:51:51,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:51:51,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:51:51,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:51:51,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:51:51,788 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:51:51,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:51:51,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:51:51,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:51:51,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:51:51,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:51:51,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:51:51,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:51:51,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:51,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:51:51,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:51:51,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:51:51,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2022-04-18 15:51:52,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:51:52,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:51:52,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:51:52,027 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:51:52,027 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:51:52,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-04-18 15:51:52,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7320d071a/e572e5579b66465faf050cb62a1bb504/FLAGd15eebac3 [2022-04-18 15:51:52,558 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:51:52,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-04-18 15:51:52,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7320d071a/e572e5579b66465faf050cb62a1bb504/FLAGd15eebac3 [2022-04-18 15:51:52,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7320d071a/e572e5579b66465faf050cb62a1bb504 [2022-04-18 15:51:52,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:51:52,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:51:52,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:52,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:51:52,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:51:52,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:52" (1/1) ... [2022-04-18 15:51:52,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0eda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:52, skipping insertion in model container [2022-04-18 15:51:52,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:52" (1/1) ... [2022-04-18 15:51:52,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:51:52,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:51:53,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-04-18 15:51:53,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:53,485 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:51:53,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-04-18 15:51:53,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:53,592 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:51:53,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53 WrapperNode [2022-04-18 15:51:53,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:53,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:53,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:51:53,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:51:53,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,649 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2022-04-18 15:51:53,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:53,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:51:53,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:51:53,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:51:53,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:51:53,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:51:53,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:51:53,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:51:53,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (1/1) ... [2022-04-18 15:51:53,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:53,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:53,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 15:51:53,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-04-18 15:51:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:51:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:51:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:51:53,751 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:51:53,904 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:51:53,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:51:54,079 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:51:54,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:51:54,086 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 15:51:54,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:54 BoogieIcfgContainer [2022-04-18 15:51:54,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:51:54,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:51:54,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:51:54,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:51:54,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:51:52" (1/3) ... [2022-04-18 15:51:54,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e56afa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:54, skipping insertion in model container [2022-04-18 15:51:54,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:53" (2/3) ... [2022-04-18 15:51:54,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e56afa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:54, skipping insertion in model container [2022-04-18 15:51:54,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:54" (3/3) ... [2022-04-18 15:51:54,094 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-04-18 15:51:54,098 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:51:54,098 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:51:54,098 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-04-18 15:51:54,099 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:51:54,138 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:51:54,175 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:51:54,181 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 15:51:54,181 INFO L341 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-04-18 15:51:54,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 126 transitions, 260 flow [2022-04-18 15:51:54,235 INFO L129 PetriNetUnfolder]: 7/125 cut-off events. [2022-04-18 15:51:54,236 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:51:54,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 7/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-04-18 15:51:54,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 126 transitions, 260 flow [2022-04-18 15:51:54,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 109 transitions, 224 flow [2022-04-18 15:51:54,263 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2022-04-18 15:51:54,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:51:54,264 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:54,265 INFO L255 CegarLoopForPetriNet]: 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] [2022-04-18 15:51:54,265 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1136870972, now seen corresponding path program 1 times [2022-04-18 15:51:54,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:54,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170309128] [2022-04-18 15:51:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:54,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:54,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:54,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170309128] [2022-04-18 15:51:54,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170309128] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:54,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:54,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495497432] [2022-04-18 15:51:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:54,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:54,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:54,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:54,535 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 126 [2022-04-18 15:51:54,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:54,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 126 [2022-04-18 15:51:54,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:54,690 INFO L129 PetriNetUnfolder]: 51/339 cut-off events. [2022-04-18 15:51:54,690 INFO L130 PetriNetUnfolder]: For 12/17 co-relation queries the response was YES. [2022-04-18 15:51:54,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 339 events. 51/339 cut-off events. For 12/17 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1481 event pairs, 36 based on Foata normal form. 32/319 useless extension candidates. Maximal degree in co-relation 389. Up to 105 conditions per place. [2022-04-18 15:51:54,695 INFO L132 encePairwiseOnDemand]: 119/126 looper letters, 19 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-04-18 15:51:54,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 252 flow [2022-04-18 15:51:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:54,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2022-04-18 15:51:54,713 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8227513227513228 [2022-04-18 15:51:54,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2022-04-18 15:51:54,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2022-04-18 15:51:54,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:54,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2022-04-18 15:51:54,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,732 INFO L186 Difference]: Start difference. First operand has 107 places, 109 transitions, 224 flow. Second operand 3 states and 311 transitions. [2022-04-18 15:51:54,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 252 flow [2022-04-18 15:51:54,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 102 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:54,738 INFO L242 Difference]: Finished difference. Result has 104 places, 102 transitions, 210 flow [2022-04-18 15:51:54,740 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2022-04-18 15:51:54,744 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2022-04-18 15:51:54,745 INFO L478 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 210 flow [2022-04-18 15:51:54,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,746 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:54,746 INFO L255 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:54,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:51:54,746 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:54,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1369833840, now seen corresponding path program 1 times [2022-04-18 15:51:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:54,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4218676] [2022-04-18 15:51:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:54,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:54,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:54,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4218676] [2022-04-18 15:51:54,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4218676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:54,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:54,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647378549] [2022-04-18 15:51:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:54,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:54,869 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 126 [2022-04-18 15:51:54,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:54,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 126 [2022-04-18 15:51:54,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:54,937 INFO L129 PetriNetUnfolder]: 52/337 cut-off events. [2022-04-18 15:51:54,937 INFO L130 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-04-18 15:51:54,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 337 events. 52/337 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1425 event pairs, 15 based on Foata normal form. 2/294 useless extension candidates. Maximal degree in co-relation 412. Up to 60 conditions per place. [2022-04-18 15:51:54,941 INFO L132 encePairwiseOnDemand]: 116/126 looper letters, 19 selfloop transitions, 6 changer transitions 4/111 dead transitions. [2022-04-18 15:51:54,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 111 transitions, 282 flow [2022-04-18 15:51:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2022-04-18 15:51:54,944 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-04-18 15:51:54,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2022-04-18 15:51:54,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2022-04-18 15:51:54,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:54,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2022-04-18 15:51:54,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,948 INFO L186 Difference]: Start difference. First operand has 104 places, 102 transitions, 210 flow. Second operand 3 states and 324 transitions. [2022-04-18 15:51:54,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 111 transitions, 282 flow [2022-04-18 15:51:54,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 111 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:54,952 INFO L242 Difference]: Finished difference. Result has 105 places, 103 transitions, 247 flow [2022-04-18 15:51:54,952 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2022-04-18 15:51:54,953 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, -2 predicate places. [2022-04-18 15:51:54,954 INFO L478 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 247 flow [2022-04-18 15:51:54,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,955 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:54,955 INFO L255 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:54,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:51:54,956 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1591231174, now seen corresponding path program 1 times [2022-04-18 15:51:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:54,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700628667] [2022-04-18 15:51:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:55,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700628667] [2022-04-18 15:51:55,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700628667] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:55,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:55,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441334417] [2022-04-18 15:51:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:55,053 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:55,054 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 126 [2022-04-18 15:51:55,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:55,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 126 [2022-04-18 15:51:55,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:55,103 INFO L129 PetriNetUnfolder]: 35/352 cut-off events. [2022-04-18 15:51:55,103 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-04-18 15:51:55,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 352 events. 35/352 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1425 event pairs, 9 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 192. Up to 50 conditions per place. [2022-04-18 15:51:55,105 INFO L132 encePairwiseOnDemand]: 123/126 looper letters, 9 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-04-18 15:51:55,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 106 transitions, 275 flow [2022-04-18 15:51:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2022-04-18 15:51:55,108 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2022-04-18 15:51:55,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2022-04-18 15:51:55,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2022-04-18 15:51:55,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:55,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2022-04-18 15:51:55,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,112 INFO L186 Difference]: Start difference. First operand has 105 places, 103 transitions, 247 flow. Second operand 3 states and 339 transitions. [2022-04-18 15:51:55,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 106 transitions, 275 flow [2022-04-18 15:51:55,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 106 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:55,119 INFO L242 Difference]: Finished difference. Result has 102 places, 104 transitions, 247 flow [2022-04-18 15:51:55,119 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=102, PETRI_TRANSITIONS=104} [2022-04-18 15:51:55,121 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, -5 predicate places. [2022-04-18 15:51:55,121 INFO L478 AbstractCegarLoop]: Abstraction has has 102 places, 104 transitions, 247 flow [2022-04-18 15:51:55,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:55,121 INFO L255 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:55,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:51:55,122 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:55,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:55,122 INFO L85 PathProgramCache]: Analyzing trace with hash -578668616, now seen corresponding path program 1 times [2022-04-18 15:51:55,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:55,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171118706] [2022-04-18 15:51:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:55,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:55,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171118706] [2022-04-18 15:51:55,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171118706] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:55,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:55,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:55,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451487370] [2022-04-18 15:51:55,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:55,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:55,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:55,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:55,184 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 126 [2022-04-18 15:51:55,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:55,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 126 [2022-04-18 15:51:55,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:55,300 INFO L129 PetriNetUnfolder]: 144/716 cut-off events. [2022-04-18 15:51:55,301 INFO L130 PetriNetUnfolder]: For 93/107 co-relation queries the response was YES. [2022-04-18 15:51:55,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 716 events. 144/716 cut-off events. For 93/107 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4119 event pairs, 49 based on Foata normal form. 5/638 useless extension candidates. Maximal degree in co-relation 547. Up to 235 conditions per place. [2022-04-18 15:51:55,307 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 27 selfloop transitions, 7 changer transitions 0/114 dead transitions. [2022-04-18 15:51:55,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 114 transitions, 347 flow [2022-04-18 15:51:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2022-04-18 15:51:55,309 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8253968253968254 [2022-04-18 15:51:55,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2022-04-18 15:51:55,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2022-04-18 15:51:55,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:55,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2022-04-18 15:51:55,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,315 INFO L186 Difference]: Start difference. First operand has 102 places, 104 transitions, 247 flow. Second operand 3 states and 312 transitions. [2022-04-18 15:51:55,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 114 transitions, 347 flow [2022-04-18 15:51:55,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 114 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:55,321 INFO L242 Difference]: Finished difference. Result has 105 places, 109 transitions, 301 flow [2022-04-18 15:51:55,322 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=105, PETRI_TRANSITIONS=109} [2022-04-18 15:51:55,323 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, -2 predicate places. [2022-04-18 15:51:55,323 INFO L478 AbstractCegarLoop]: Abstraction has has 105 places, 109 transitions, 301 flow [2022-04-18 15:51:55,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,328 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:55,328 INFO L255 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:55,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:51:55,329 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:55,330 INFO L85 PathProgramCache]: Analyzing trace with hash 67441710, now seen corresponding path program 1 times [2022-04-18 15:51:55,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:55,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161025851] [2022-04-18 15:51:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:55,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161025851] [2022-04-18 15:51:55,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161025851] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:55,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:55,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:55,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697981580] [2022-04-18 15:51:55,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:55,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:55,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:55,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:55,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:55,389 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 126 [2022-04-18 15:51:55,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 109 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:55,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 126 [2022-04-18 15:51:55,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:55,470 INFO L129 PetriNetUnfolder]: 148/711 cut-off events. [2022-04-18 15:51:55,470 INFO L130 PetriNetUnfolder]: For 328/344 co-relation queries the response was YES. [2022-04-18 15:51:55,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 711 events. 148/711 cut-off events. For 328/344 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4030 event pairs, 41 based on Foata normal form. 0/658 useless extension candidates. Maximal degree in co-relation 625. Up to 229 conditions per place. [2022-04-18 15:51:55,476 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 29 selfloop transitions, 9 changer transitions 0/120 dead transitions. [2022-04-18 15:51:55,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 120 transitions, 427 flow [2022-04-18 15:51:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-04-18 15:51:55,478 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8306878306878307 [2022-04-18 15:51:55,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-04-18 15:51:55,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-04-18 15:51:55,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:55,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-04-18 15:51:55,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,480 INFO L186 Difference]: Start difference. First operand has 105 places, 109 transitions, 301 flow. Second operand 3 states and 314 transitions. [2022-04-18 15:51:55,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 120 transitions, 427 flow [2022-04-18 15:51:55,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 120 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:55,501 INFO L242 Difference]: Finished difference. Result has 107 places, 114 transitions, 355 flow [2022-04-18 15:51:55,502 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=107, PETRI_TRANSITIONS=114} [2022-04-18 15:51:55,502 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2022-04-18 15:51:55,502 INFO L478 AbstractCegarLoop]: Abstraction has has 107 places, 114 transitions, 355 flow [2022-04-18 15:51:55,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,503 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:55,503 INFO L255 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:55,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:51:55,503 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:55,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1164328148, now seen corresponding path program 1 times [2022-04-18 15:51:55,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:55,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962206923] [2022-04-18 15:51:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:55,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962206923] [2022-04-18 15:51:55,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962206923] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:55,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:55,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:55,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515388093] [2022-04-18 15:51:55,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:55,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:55,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:55,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:55,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:55,557 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 126 [2022-04-18 15:51:55,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 114 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:55,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 126 [2022-04-18 15:51:55,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:55,591 INFO L129 PetriNetUnfolder]: 6/168 cut-off events. [2022-04-18 15:51:55,592 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-04-18 15:51:55,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 168 events. 6/168 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 2 based on Foata normal form. 5/168 useless extension candidates. Maximal degree in co-relation 161. Up to 15 conditions per place. [2022-04-18 15:51:55,593 INFO L132 encePairwiseOnDemand]: 122/126 looper letters, 7 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2022-04-18 15:51:55,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 94 transitions, 255 flow [2022-04-18 15:51:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2022-04-18 15:51:55,595 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8756613756613757 [2022-04-18 15:51:55,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2022-04-18 15:51:55,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2022-04-18 15:51:55,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:55,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2022-04-18 15:51:55,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,598 INFO L186 Difference]: Start difference. First operand has 107 places, 114 transitions, 355 flow. Second operand 3 states and 331 transitions. [2022-04-18 15:51:55,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 94 transitions, 255 flow [2022-04-18 15:51:55,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 219 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-04-18 15:51:55,601 INFO L242 Difference]: Finished difference. Result has 97 places, 94 transitions, 205 flow [2022-04-18 15:51:55,602 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2022-04-18 15:51:55,602 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, -10 predicate places. [2022-04-18 15:51:55,602 INFO L478 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 205 flow [2022-04-18 15:51:55,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:55,603 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:55,603 INFO L255 CegarLoopForPetriNet]: 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, 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] [2022-04-18 15:51:55,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:51:55,604 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:55,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:55,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1489553915, now seen corresponding path program 1 times [2022-04-18 15:51:55,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:55,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021389380] [2022-04-18 15:51:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:55,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:55,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021389380] [2022-04-18 15:51:55,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021389380] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:51:55,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145992297] [2022-04-18 15:51:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:55,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:55,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:55,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:55,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 15:51:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:55,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 15:51:55,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:55,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:51:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:56,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145992297] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:51:56,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 15:51:56,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-04-18 15:51:56,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463541208] [2022-04-18 15:51:56,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 15:51:56,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 15:51:56,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 15:51:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 15:51:56,081 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2022-04-18 15:51:56,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 109.9) internal successors, (1099), 10 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:56,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2022-04-18 15:51:56,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:56,171 INFO L129 PetriNetUnfolder]: 8/215 cut-off events. [2022-04-18 15:51:56,172 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:51:56,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 215 events. 8/215 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 367 event pairs, 3 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 86. Up to 13 conditions per place. [2022-04-18 15:51:56,173 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 9 selfloop transitions, 9 changer transitions 0/102 dead transitions. [2022-04-18 15:51:56,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 259 flow [2022-04-18 15:51:56,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:51:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:51:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 992 transitions. [2022-04-18 15:51:56,176 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8747795414462081 [2022-04-18 15:51:56,176 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 992 transitions. [2022-04-18 15:51:56,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 992 transitions. [2022-04-18 15:51:56,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:56,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 992 transitions. [2022-04-18 15:51:56,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.22222222222223) internal successors, (992), 9 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,183 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,183 INFO L186 Difference]: Start difference. First operand has 97 places, 94 transitions, 205 flow. Second operand 9 states and 992 transitions. [2022-04-18 15:51:56,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 259 flow [2022-04-18 15:51:56,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 102 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:56,187 INFO L242 Difference]: Finished difference. Result has 107 places, 100 transitions, 251 flow [2022-04-18 15:51:56,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=251, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2022-04-18 15:51:56,188 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2022-04-18 15:51:56,188 INFO L478 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 251 flow [2022-04-18 15:51:56,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 109.9) internal successors, (1099), 10 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,190 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:56,190 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:56,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:56,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:56,415 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-04-18 15:51:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2049065533, now seen corresponding path program 2 times [2022-04-18 15:51:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:56,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379259850] [2022-04-18 15:51:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:56,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:56,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379259850] [2022-04-18 15:51:56,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379259850] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 15:51:56,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693085032] [2022-04-18 15:51:56,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 15:51:56,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:56,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:56,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:56,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 15:51:56,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-18 15:51:56,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 15:51:56,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2022-04-18 15:51:56,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:56,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 15:51:56,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 15:51:56,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,880 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 15:51:56,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 15:51:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:56,922 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 15:51:56,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 15:51:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-18 15:51:56,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:56,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693085032] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:56,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 15:51:56,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-04-18 15:51:56,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130153577] [2022-04-18 15:51:56,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:56,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 15:51:56,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:56,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 15:51:56,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-04-18 15:51:56,949 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 126 [2022-04-18 15:51:56,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 105.42857142857143) internal successors, (738), 7 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:56,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 126 [2022-04-18 15:51:56,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:56,982 INFO L129 PetriNetUnfolder]: 8/214 cut-off events. [2022-04-18 15:51:56,982 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 15:51:56,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 214 events. 8/214 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 363 event pairs, 3 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 203. Up to 11 conditions per place. [2022-04-18 15:51:56,984 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2022-04-18 15:51:56,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 99 transitions, 269 flow [2022-04-18 15:51:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 15:51:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-04-18 15:51:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 739 transitions. [2022-04-18 15:51:56,986 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8378684807256236 [2022-04-18 15:51:56,986 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 739 transitions. [2022-04-18 15:51:56,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 739 transitions. [2022-04-18 15:51:56,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:56,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 739 transitions. [2022-04-18 15:51:56,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.57142857142857) internal successors, (739), 7 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,990 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,990 INFO L186 Difference]: Start difference. First operand has 107 places, 100 transitions, 251 flow. Second operand 7 states and 739 transitions. [2022-04-18 15:51:56,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 99 transitions, 269 flow [2022-04-18 15:51:56,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 99 transitions, 263 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:56,992 INFO L242 Difference]: Finished difference. Result has 111 places, 0 transitions, 0 flow [2022-04-18 15:51:56,992 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=111, PETRI_TRANSITIONS=0} [2022-04-18 15:51:56,992 INFO L335 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2022-04-18 15:51:56,992 INFO L478 AbstractCegarLoop]: Abstraction has has 111 places, 0 transitions, 0 flow [2022-04-18 15:51:56,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 105.42857142857143) internal successors, (738), 7 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-04-18 15:51:56,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-04-18 15:51:56,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-04-18 15:51:56,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-04-18 15:51:57,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:57,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-04-18 15:51:57,214 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:57,217 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:51:57,217 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:51:57,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:51:57 BasicIcfg [2022-04-18 15:51:57,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:51:57,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:51:57,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:51:57,220 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:51:57,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:54" (3/4) ... [2022-04-18 15:51:57,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:51:57,226 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2022-04-18 15:51:57,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-04-18 15:51:57,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-04-18 15:51:57,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 15:51:57,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:51:57,272 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:51:57,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:51:57,273 INFO L158 Benchmark]: Toolchain (without parser) took 4379.78ms. Allocated memory was 96.5MB in the beginning and 159.4MB in the end (delta: 62.9MB). Free memory was 66.1MB in the beginning and 80.2MB in the end (delta: -14.1MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,273 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:51:57,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.39ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 65.8MB in the beginning and 72.5MB in the end (delta: -6.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.43ms. Allocated memory is still 123.7MB. Free memory was 72.5MB in the beginning and 70.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,274 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 68.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,274 INFO L158 Benchmark]: RCFGBuilder took 416.33ms. Allocated memory is still 123.7MB. Free memory was 68.3MB in the beginning and 90.6MB in the end (delta: -22.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,274 INFO L158 Benchmark]: TraceAbstraction took 3130.74ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 89.9MB in the beginning and 83.3MB in the end (delta: 6.6MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,275 INFO L158 Benchmark]: Witness Printer took 51.95ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:57,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.39ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 65.8MB in the beginning and 72.5MB in the end (delta: -6.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.43ms. Allocated memory is still 123.7MB. Free memory was 72.5MB in the beginning and 70.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 68.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.33ms. Allocated memory is still 123.7MB. Free memory was 68.3MB in the beginning and 90.6MB in the end (delta: -22.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3130.74ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 89.9MB in the beginning and 83.3MB in the end (delta: 6.6MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 51.95ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1342]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1353]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1357]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1326]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1329]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 147 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 86 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 621 NumberOfCodeBlocks, 579 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 675 ConstructedInterpolants, 0 QuantifiedInterpolants, 1129 SizeOfPredicates, 2 NumberOfNonLiveVariables, 297 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 45/93 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:51:57,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE