./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.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 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 18:07:05,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 18:07:05,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 18:07:05,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 18:07:05,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 18:07:05,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 18:07:05,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 18:07:05,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 18:07:05,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 18:07:05,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 18:07:05,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 18:07:05,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 18:07:05,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 18:07:05,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 18:07:05,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 18:07:05,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 18:07:05,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 18:07:05,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 18:07:05,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 18:07:05,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 18:07:05,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 18:07:05,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 18:07:05,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 18:07:05,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 18:07:05,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 18:07:05,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 18:07:05,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 18:07:05,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 18:07:05,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 18:07:05,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 18:07:05,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 18:07:05,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 18:07:05,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 18:07:05,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 18:07:05,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 18:07:05,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 18:07:05,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 18:07:05,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 18:07:05,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 18:07:05,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 18:07:05,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 18:07:05,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 18:07:05,847 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 18:07:05,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 18:07:05,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 18:07:05,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 18:07:05,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 18:07:05,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 18:07:05,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 18:07:05,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 18:07:05,850 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 18:07:05,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 18:07:05,850 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 18:07:05,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 18:07:05,851 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 18:07:05,852 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 18:07:05,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 18:07:05,852 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 18:07:05,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 18:07:05,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 18:07:05,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:05,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 18:07:05,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 18:07:05,854 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 18:07:06,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 18:07:06,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 18:07:06,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 18:07:06,101 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 18:07:06,102 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 18:07:06,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i [2023-08-28 18:07:07,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 18:07:07,272 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 18:07:07,272 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i [2023-08-28 18:07:07,287 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a306fc64c/af4a9be2254c4d86b9d39d144c1c3cf8/FLAGa4b6f9de2 [2023-08-28 18:07:07,296 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a306fc64c/af4a9be2254c4d86b9d39d144c1c3cf8 [2023-08-28 18:07:07,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 18:07:07,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 18:07:07,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:07,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 18:07:07,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 18:07:07,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5e27bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07, skipping insertion in model container [2023-08-28 18:07:07,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 18:07:07,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 18:07:07,569 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2023-08-28 18:07:07,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:07,581 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 18:07:07,606 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2023-08-28 18:07:07,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:07,630 INFO L208 MainTranslator]: Completed translation [2023-08-28 18:07:07,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07 WrapperNode [2023-08-28 18:07:07,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:07,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:07,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 18:07:07,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 18:07:07,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,672 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-08-28 18:07:07,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:07,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 18:07:07,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 18:07:07,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 18:07:07,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,705 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 18:07:07,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 18:07:07,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 18:07:07,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 18:07:07,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (1/1) ... [2023-08-28 18:07:07,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:07,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 18:07:07,733 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) [2023-08-28 18:07:07,769 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 [2023-08-28 18:07:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 18:07:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 18:07:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 18:07:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 18:07:07,780 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 18:07:07,853 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 18:07:07,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 18:07:07,961 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 18:07:07,973 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 18:07:07,973 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-28 18:07:07,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:07 BoogieIcfgContainer [2023-08-28 18:07:07,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 18:07:07,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 18:07:07,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 18:07:07,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 18:07:07,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 06:07:07" (1/3) ... [2023-08-28 18:07:07,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f3803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:07, skipping insertion in model container [2023-08-28 18:07:07,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:07" (2/3) ... [2023-08-28 18:07:07,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f3803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:07, skipping insertion in model container [2023-08-28 18:07:07,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:07" (3/3) ... [2023-08-28 18:07:07,980 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs-b.i [2023-08-28 18:07:07,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 18:07:08,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 18:07:08,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-28 18:07:08,002 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 18:07:08,056 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 18:07:08,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,127 INFO L130 PetriNetUnfolder]: 3/65 cut-off events. [2023-08-28 18:07:08,127 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:08,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2023-08-28 18:07:08,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,141 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:08,154 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,156 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:08,178 INFO L130 PetriNetUnfolder]: 3/65 cut-off events. [2023-08-28 18:07:08,178 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:08,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2023-08-28 18:07:08,180 INFO L119 LiptonReduction]: Number of co-enabled transitions 546 [2023-08-28 18:07:09,129 INFO L134 LiptonReduction]: Checked pairs total: 466 [2023-08-28 18:07:09,129 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-28 18:07:09,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:07:09,142 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e999a1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:09,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-28 18:07:09,143 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-28 18:07:09,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:09,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:09,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 18:07:09,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-28 18:07:09,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 234, now seen corresponding path program 1 times [2023-08-28 18:07:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:09,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74366080] [2023-08-28 18:07:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:09,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74366080] [2023-08-28 18:07:09,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74366080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 18:07:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031153736] [2023-08-28 18:07:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:09,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 18:07:09,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:09,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 18:07:09,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 18:07:09,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 113 [2023-08-28 18:07:09,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 10 transitions, 25 flow. Second operand has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 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) [2023-08-28 18:07:09,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:09,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 113 [2023-08-28 18:07:09,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:09,258 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-08-28 18:07:09,258 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:09,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-28 18:07:09,259 INFO L137 encePairwiseOnDemand]: 109/113 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2023-08-28 18:07:09,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-28 18:07:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 18:07:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 18:07:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 109 transitions. [2023-08-28 18:07:09,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823008849557522 [2023-08-28 18:07:09,267 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 109 transitions. [2023-08-28 18:07:09,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 109 transitions. [2023-08-28 18:07:09,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:09,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 109 transitions. [2023-08-28 18:07:09,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2023-08-28 18:07:09,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 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) [2023-08-28 18:07:09,273 INFO L81 ComplementDD]: Finished complementDD. Result has 3 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) [2023-08-28 18:07:09,275 INFO L175 Difference]: Start difference. First operand has 13 places, 10 transitions, 25 flow. Second operand 2 states and 109 transitions. [2023-08-28 18:07:09,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-28 18:07:09,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:09,277 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-08-28 18:07:09,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-08-28 18:07:09,280 INFO L281 CegarLoopForPetriNet]: 13 programPoint places, -3 predicate places. [2023-08-28 18:07:09,280 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-08-28 18:07:09,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 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) [2023-08-28 18:07:09,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-28 18:07:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-28 18:07:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2023-08-28 18:07:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-28 18:07:09,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-28 18:07:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 18:07:09,284 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 18:07:09,285 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-28 18:07:09,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:09,296 INFO L130 PetriNetUnfolder]: 3/65 cut-off events. [2023-08-28 18:07:09,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:09,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2023-08-28 18:07:09,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 55 transitions, 115 flow [2023-08-28 18:07:09,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 54 transitions, 113 flow [2023-08-28 18:07:09,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:09,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 54 transitions, 113 flow [2023-08-28 18:07:09,298 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 54 transitions, 113 flow [2023-08-28 18:07:09,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 54 transitions, 113 flow [2023-08-28 18:07:09,306 INFO L130 PetriNetUnfolder]: 3/64 cut-off events. [2023-08-28 18:07:09,307 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:09,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 3/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2023-08-28 18:07:09,308 INFO L119 LiptonReduction]: Number of co-enabled transitions 546 [2023-08-28 18:07:10,084 INFO L134 LiptonReduction]: Checked pairs total: 511 [2023-08-28 18:07:10,084 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-08-28 18:07:10,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-28 18:07:10,089 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e999a1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:10,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-28 18:07:10,091 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-28 18:07:10,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:10,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:10,091 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-28 18:07:10,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-28 18:07:10,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash -115751073, now seen corresponding path program 1 times [2023-08-28 18:07:10,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:10,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265085513] [2023-08-28 18:07:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:10,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:10,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:07:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:10,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:07:10,137 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:07:10,137 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-28 18:07:10,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 18:07:10,137 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 18:07:10,138 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-28 18:07:10,138 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-28 18:07:10,138 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-28 18:07:10,146 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 18:07:10,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,162 INFO L130 PetriNetUnfolder]: 5/99 cut-off events. [2023-08-28 18:07:10,162 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 18:07:10,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 5/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2023-08-28 18:07:10,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,163 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:10,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,164 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 166 flow [2023-08-28 18:07:10,179 INFO L130 PetriNetUnfolder]: 5/99 cut-off events. [2023-08-28 18:07:10,179 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 18:07:10,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 5/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2023-08-28 18:07:10,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2023-08-28 18:07:10,984 INFO L134 LiptonReduction]: Checked pairs total: 4748 [2023-08-28 18:07:10,984 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-08-28 18:07:10,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:07:10,986 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e999a1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:10,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-28 18:07:10,986 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-28 18:07:10,986 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:10,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:10,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 18:07:10,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-28 18:07:10,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash 449, now seen corresponding path program 1 times [2023-08-28 18:07:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:10,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589750198] [2023-08-28 18:07:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:10,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:10,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:10,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589750198] [2023-08-28 18:07:10,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589750198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:10,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:10,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 18:07:10,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533516149] [2023-08-28 18:07:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:10,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 18:07:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:10,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 18:07:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 18:07:10,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2023-08-28 18:07:10,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-08-28 18:07:10,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:10,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2023-08-28 18:07:10,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:11,039 INFO L130 PetriNetUnfolder]: 49/155 cut-off events. [2023-08-28 18:07:11,039 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-28 18:07:11,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 155 events. 49/155 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 703 event pairs, 49 based on Foata normal form. 12/142 useless extension candidates. Maximal degree in co-relation 59. Up to 100 conditions per place. [2023-08-28 18:07:11,040 INFO L137 encePairwiseOnDemand]: 136/140 looper letters, 11 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-28 18:07:11,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 80 flow [2023-08-28 18:07:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 18:07:11,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 18:07:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 153 transitions. [2023-08-28 18:07:11,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2023-08-28 18:07:11,045 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 153 transitions. [2023-08-28 18:07:11,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 153 transitions. [2023-08-28 18:07:11,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:11,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 153 transitions. [2023-08-28 18:07:11,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-08-28 18:07:11,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-28 18:07:11,047 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-28 18:07:11,047 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 66 flow. Second operand 2 states and 153 transitions. [2023-08-28 18:07:11,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 80 flow [2023-08-28 18:07:11,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 78 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:11,048 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 56 flow [2023-08-28 18:07:11,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2023-08-28 18:07:11,049 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2023-08-28 18:07:11,049 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 56 flow [2023-08-28 18:07:11,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-08-28 18:07:11,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:11,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-28 18:07:11,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 18:07:11,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-28 18:07:11,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 435004422, now seen corresponding path program 1 times [2023-08-28 18:07:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:11,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774204451] [2023-08-28 18:07:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:11,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:11,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:11,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774204451] [2023-08-28 18:07:11,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774204451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:11,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:11,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:11,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107723830] [2023-08-28 18:07:11,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:11,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:11,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:11,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:11,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:11,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 140 [2023-08-28 18:07:11,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-28 18:07:11,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:11,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 140 [2023-08-28 18:07:11,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:11,161 INFO L130 PetriNetUnfolder]: 93/246 cut-off events. [2023-08-28 18:07:11,161 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-28 18:07:11,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 246 events. 93/246 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1247 event pairs, 72 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 448. Up to 157 conditions per place. [2023-08-28 18:07:11,162 INFO L137 encePairwiseOnDemand]: 135/140 looper letters, 17 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-28 18:07:11,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 117 flow [2023-08-28 18:07:11,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-08-28 18:07:11,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2023-08-28 18:07:11,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-08-28 18:07:11,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-08-28 18:07:11,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:11,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-08-28 18:07:11,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-08-28 18:07:11,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,185 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 56 flow. Second operand 3 states and 202 transitions. [2023-08-28 18:07:11,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 117 flow [2023-08-28 18:07:11,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 117 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:11,186 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 82 flow [2023-08-28 18:07:11,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-28 18:07:11,187 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-08-28 18:07:11,187 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 82 flow [2023-08-28 18:07:11,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-28 18:07:11,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:11,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:11,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 18:07:11,187 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-28 18:07:11,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:11,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1427451194, now seen corresponding path program 1 times [2023-08-28 18:07:11,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:11,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313341337] [2023-08-28 18:07:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:11,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:11,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313341337] [2023-08-28 18:07:11,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313341337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:11,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:11,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730027010] [2023-08-28 18:07:11,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:11,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:11,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:11,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:11,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 140 [2023-08-28 18:07:11,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2023-08-28 18:07:11,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:11,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 140 [2023-08-28 18:07:11,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:11,309 INFO L130 PetriNetUnfolder]: 154/342 cut-off events. [2023-08-28 18:07:11,309 INFO L131 PetriNetUnfolder]: For 95/103 co-relation queries the response was YES. [2023-08-28 18:07:11,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 342 events. 154/342 cut-off events. For 95/103 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1788 event pairs, 54 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 775. Up to 186 conditions per place. [2023-08-28 18:07:11,315 INFO L137 encePairwiseOnDemand]: 132/140 looper letters, 22 selfloop transitions, 6 changer transitions 6/40 dead transitions. [2023-08-28 18:07:11,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 195 flow [2023-08-28 18:07:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:11,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:11,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2023-08-28 18:07:11,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047619047619047 [2023-08-28 18:07:11,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2023-08-28 18:07:11,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2023-08-28 18:07:11,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:11,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2023-08-28 18:07:11,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2023-08-28 18:07:11,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,324 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 82 flow. Second operand 3 states and 212 transitions. [2023-08-28 18:07:11,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 195 flow [2023-08-28 18:07:11,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 40 transitions, 189 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:11,328 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 124 flow [2023-08-28 18:07:11,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2023-08-28 18:07:11,330 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-28 18:07:11,331 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 124 flow [2023-08-28 18:07:11,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2023-08-28 18:07:11,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:11,332 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:11,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 18:07:11,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-28 18:07:11,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:11,333 INFO L85 PathProgramCache]: Analyzing trace with hash 702707077, now seen corresponding path program 1 times [2023-08-28 18:07:11,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:11,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002522181] [2023-08-28 18:07:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:11,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:07:11,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:11,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002522181] [2023-08-28 18:07:11,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002522181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:11,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:11,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023770158] [2023-08-28 18:07:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:11,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:11,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:11,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:11,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 140 [2023-08-28 18:07:11,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2023-08-28 18:07:11,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:11,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 140 [2023-08-28 18:07:11,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:11,433 INFO L130 PetriNetUnfolder]: 150/344 cut-off events. [2023-08-28 18:07:11,433 INFO L131 PetriNetUnfolder]: For 246/256 co-relation queries the response was YES. [2023-08-28 18:07:11,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 344 events. 150/344 cut-off events. For 246/256 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1877 event pairs, 90 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 918. Up to 217 conditions per place. [2023-08-28 18:07:11,435 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 18 selfloop transitions, 8 changer transitions 4/39 dead transitions. [2023-08-28 18:07:11,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 228 flow [2023-08-28 18:07:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2023-08-28 18:07:11,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2023-08-28 18:07:11,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 204 transitions. [2023-08-28 18:07:11,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 204 transitions. [2023-08-28 18:07:11,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:11,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 204 transitions. [2023-08-28 18:07:11,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-08-28 18:07:11,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2023-08-28 18:07:11,440 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 124 flow. Second operand 3 states and 204 transitions. [2023-08-28 18:07:11,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 228 flow [2023-08-28 18:07:11,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:07:11,443 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 172 flow [2023-08-28 18:07:11,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-28 18:07:11,451 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2023-08-28 18:07:11,451 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 172 flow [2023-08-28 18:07:11,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2023-08-28 18:07:11,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:11,452 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:11,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 18:07:11,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-28 18:07:11,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1737268622, now seen corresponding path program 1 times [2023-08-28 18:07:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:11,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844633761] [2023-08-28 18:07:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:11,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:11,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:07:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:11,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:07:11,499 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:07:11,499 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-28 18:07:11,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-28 18:07:11,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-28 18:07:11,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-28 18:07:11,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-28 18:07:11,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-28 18:07:11,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-28 18:07:11,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 18:07:11,503 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-28 18:07:11,503 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-28 18:07:11,506 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-28 18:07:11,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 18:07:11,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:07:11 BasicIcfg [2023-08-28 18:07:11,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 18:07:11,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 18:07:11,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 18:07:11,543 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 18:07:11,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:07" (3/4) ... [2023-08-28 18:07:11,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 18:07:11,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 18:07:11,545 INFO L158 Benchmark]: Toolchain (without parser) took 4246.39ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 62.5MB in the beginning and 78.8MB in the end (delta: -16.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-08-28 18:07:11,546 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:11,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.50ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 43.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-28 18:07:11,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.01ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 64.7MB in the end (delta: -21.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-08-28 18:07:11,546 INFO L158 Benchmark]: Boogie Preprocessor took 34.90ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:11,547 INFO L158 Benchmark]: RCFGBuilder took 265.34ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 52.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-28 18:07:11,547 INFO L158 Benchmark]: TraceAbstraction took 3566.40ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 78.8MB in the end (delta: -27.2MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-08-28 18:07:11,547 INFO L158 Benchmark]: Witness Printer took 2.47ms. Allocated memory is still 104.9MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:11,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.50ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 43.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.01ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 64.7MB in the end (delta: -21.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.90ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 265.34ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 52.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3566.40ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 78.8MB in the end (delta: -27.2MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * Witness Printer took 2.47ms. Allocated memory is still 104.9MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 56 PlacesBefore, 13 PlacesAfterwards, 55 TransitionsBefore, 10 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 466 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 466, independent: 466, independent conditional: 0, independent unconditional: 466, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 290, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 466, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 290, unknown conditional: 0, unknown unconditional: 290] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 55 PlacesBefore, 12 PlacesAfterwards, 54 TransitionsBefore, 9 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 55 TotalNumberOfCompositions, 511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 511, independent: 511, independent conditional: 0, independent unconditional: 511, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 293, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 511, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 79 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 27 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 4748 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2632, independent: 2464, independent conditional: 0, independent unconditional: 2464, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1115, independent: 1075, independent conditional: 0, independent unconditional: 1075, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2632, independent: 1389, independent conditional: 0, independent unconditional: 1389, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 1115, unknown conditional: 0, unknown unconditional: 1115] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int s; [L696] 0 s = __VERIFIER_nondet_int() [L697] 0 pthread_t t; VAL [s=0, t={3:0}] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, pthread_create(&t, 0, thr1, 0)=-2, s=0, t={3:0}] [L698] COND TRUE 0 1 [L688] 1 int l = __VERIFIER_nondet_int(); [L689] 1 l = 4 [L690] 1 s = l VAL [arg={0:0}, arg={0:0}, l=4, s = l=50, s=4] [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, arg={0:0}, l=4, pthread_create(&t, 0, thr1, 0)=-1, s = l=50, s=4, t={3:0}] [L688] 2 int l = __VERIFIER_nondet_int(); [L689] 2 l = 4 [L690] 2 s = l VAL [arg={0:0}, arg={0:0}, l=4, s = l=50, s=4] Now there is a data race on ~s~0 between C: s = __VERIFIER_nondet_int() [696] and C: s = l [690] - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 6 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 96 locations, 8 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 33 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=4, InterpolantAutomatonStates: 11, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 75 locations, 6 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: 0.8s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-28 18:07:11,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE