./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:53:50,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:53:50,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:53:50,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:53:50,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:53:50,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:53:50,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:53:50,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:53:50,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:53:50,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:53:50,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:53:50,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:53:50,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:53:50,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:53:50,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:53:50,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:53:50,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:53:50,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:53:50,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:53:50,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:53:50,839 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:53:50,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:53:50,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:53:50,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:53:50,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:53:50,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:53:50,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:53:50,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:53:50,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:53:50,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:53:50,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:53:50,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:53:50,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:53:50,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:53:50,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:53:50,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:53:50,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:53:50,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:53:50,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:53:50,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:53:50,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:53:50,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:53:50,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:53:50,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:53:50,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:53:50,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:53:50,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:53:50,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:53:50,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:53:50,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:53:50,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:53:50,877 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:53:50,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:53:50,878 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:53:50,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:53:50,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:53:50,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:53:50,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:53:50,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:53:50,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:53:50,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:53:50,879 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:53:50,880 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:53:50,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:53:50,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:53:50,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:53:50,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:53:50,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:53:50,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:53:50,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:53:50,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:53:50,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:53:50,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:53:50,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:53:50,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:53:50,882 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:53:50,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:53:50,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:53:50,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2022-04-18 15:53:51,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:53:51,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:53:51,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:53:51,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:53:51,193 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:53:51,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i [2022-04-18 15:53:51,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5eb91f/a7c409f2a07245ae80d28b7b7a918025/FLAG5fd683ee2 [2022-04-18 15:53:51,763 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:53:51,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i [2022-04-18 15:53:51,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5eb91f/a7c409f2a07245ae80d28b7b7a918025/FLAG5fd683ee2 [2022-04-18 15:53:52,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5eb91f/a7c409f2a07245ae80d28b7b7a918025 [2022-04-18 15:53:52,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:53:52,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:53:52,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:53:52,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:53:52,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:53:52,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fd840e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52, skipping insertion in model container [2022-04-18 15:53:52,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:53:52,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:53:52,300 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 15:53:52,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[30484,30497] [2022-04-18 15:53:52,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[31858,31871] [2022-04-18 15:53:52,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[31909,31922] [2022-04-18 15:53:52,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32058,32071] [2022-04-18 15:53:52,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32135,32148] [2022-04-18 15:53:52,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32182,32195] [2022-04-18 15:53:52,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32291,32304] [2022-04-18 15:53:52,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32410,32423] [2022-04-18 15:53:52,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32458,32471] [2022-04-18 15:53:52,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32535,32548] [2022-04-18 15:53:52,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32661,32674] [2022-04-18 15:53:52,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[33244,33257] [2022-04-18 15:53:52,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[33321,33334] [2022-04-18 15:53:52,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:53:52,574 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:53:52,587 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 15:53:52,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[30484,30497] [2022-04-18 15:53:52,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[31858,31871] [2022-04-18 15:53:52,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[31909,31922] [2022-04-18 15:53:52,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32058,32071] [2022-04-18 15:53:52,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32135,32148] [2022-04-18 15:53:52,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32182,32195] [2022-04-18 15:53:52,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32291,32304] [2022-04-18 15:53:52,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32410,32423] [2022-04-18 15:53:52,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32458,32471] [2022-04-18 15:53:52,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32535,32548] [2022-04-18 15:53:52,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[32661,32674] [2022-04-18 15:53:52,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[33244,33257] [2022-04-18 15:53:52,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i[33321,33334] [2022-04-18 15:53:52,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:53:52,692 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:53:52,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52 WrapperNode [2022-04-18 15:53:52,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:53:52,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:53:52,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:53:52,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:53:52,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,787 INFO L137 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 950 [2022-04-18 15:53:52,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:53:52,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:53:52,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:53:52,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:53:52,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:53:52,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:53:52,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:53:52,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:53:52,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (1/1) ... [2022-04-18 15:53:52,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:53:52,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:53:52,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 15:53:52,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 15:53:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:53:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:53:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:53:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-04-18 15:53:53,020 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-04-18 15:53:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:53:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 15:53:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:53:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 15:53:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:53:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:53:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:53:53,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:53:53,024 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:53:53,244 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:53:53,254 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:53:54,374 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:53:54,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:53:54,391 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-04-18 15:53:54,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:53:54 BoogieIcfgContainer [2022-04-18 15:53:54,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:53:54,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:53:54,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:53:54,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:53:54,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:53:52" (1/3) ... [2022-04-18 15:53:54,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719e78bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:53:54, skipping insertion in model container [2022-04-18 15:53:54,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:53:52" (2/3) ... [2022-04-18 15:53:54,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719e78bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:53:54, skipping insertion in model container [2022-04-18 15:53:54,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:53:54" (3/3) ... [2022-04-18 15:53:54,407 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2022-04-18 15:53:54,412 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:53:54,413 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:53:54,413 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-04-18 15:53:54,413 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:53:54,609 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:53:54,649 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:53:54,655 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 15:53:54,655 INFO L341 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-04-18 15:53:54,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1018 places, 1085 transitions, 2178 flow [2022-04-18 15:53:55,349 INFO L129 PetriNetUnfolder]: 106/1593 cut-off events. [2022-04-18 15:53:55,349 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:53:55,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1593 events. 106/1593 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6065 event pairs, 0 based on Foata normal form. 0/1339 useless extension candidates. Maximal degree in co-relation 964. Up to 4 conditions per place. [2022-04-18 15:53:55,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 1018 places, 1085 transitions, 2178 flow [2022-04-18 15:53:55,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1018 places, 1085 transitions, 2178 flow [2022-04-18 15:53:55,450 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2022-04-18 15:53:55,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:53:55,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:53:55,451 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:53:55,451 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 15:53:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:53:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1378405910, now seen corresponding path program 1 times [2022-04-18 15:53:55,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:53:55,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209003244] [2022-04-18 15:53:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:53:55,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:53:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:53:55,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:53:55,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:53:55,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209003244] [2022-04-18 15:53:55,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209003244] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:53:55,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:53:55,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:53:55,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618075789] [2022-04-18 15:53:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:53:55,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:53:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:53:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:53:55,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:53:55,872 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1085 [2022-04-18 15:53:55,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1085 transitions, 2178 flow. Second operand has 6 states, 6 states have (on average 585.8333333333334) internal successors, (3515), 6 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:53:55,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:53:55,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1085 [2022-04-18 15:53:55,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:54:23,141 INFO L129 PetriNetUnfolder]: 46311/142399 cut-off events. [2022-04-18 15:54:23,141 INFO L130 PetriNetUnfolder]: For 10/15 co-relation queries the response was YES. [2022-04-18 15:54:23,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227523 conditions, 142399 events. 46311/142399 cut-off events. For 10/15 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 1600553 event pairs, 40950 based on Foata normal form. 10094/127431 useless extension candidates. Maximal degree in co-relation 226648. Up to 85112 conditions per place. [2022-04-18 15:54:23,921 INFO L132 encePairwiseOnDemand]: 1036/1085 looper letters, 452 selfloop transitions, 5 changer transitions 1/1041 dead transitions. [2022-04-18 15:54:23,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1041 transitions, 3004 flow [2022-04-18 15:54:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:54:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:54:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4005 transitions. [2022-04-18 15:54:23,952 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6152073732718893 [2022-04-18 15:54:23,953 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4005 transitions. [2022-04-18 15:54:23,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4005 transitions. [2022-04-18 15:54:23,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:54:23,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4005 transitions. [2022-04-18 15:54:23,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 667.5) internal successors, (4005), 6 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:23,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1085.0) internal successors, (7595), 7 states have internal predecessors, (7595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,005 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1085.0) internal successors, (7595), 7 states have internal predecessors, (7595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,007 INFO L186 Difference]: Start difference. First operand has 1018 places, 1085 transitions, 2178 flow. Second operand 6 states and 4005 transitions. [2022-04-18 15:54:24,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1041 transitions, 3004 flow [2022-04-18 15:54:24,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1041 transitions, 3004 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:54:24,204 INFO L242 Difference]: Finished difference. Result has 1022 places, 1040 transitions, 2098 flow [2022-04-18 15:54:24,207 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1085, PETRI_DIFFERENCE_MINUEND_FLOW=2090, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1041, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1036, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2098, PETRI_PLACES=1022, PETRI_TRANSITIONS=1040} [2022-04-18 15:54:24,212 INFO L335 CegarLoopForPetriNet]: 1018 programPoint places, 4 predicate places. [2022-04-18 15:54:24,212 INFO L478 AbstractCegarLoop]: Abstraction has has 1022 places, 1040 transitions, 2098 flow [2022-04-18 15:54:24,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 585.8333333333334) internal successors, (3515), 6 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,220 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:54:24,220 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:54:24,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:54:24,221 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 15:54:24,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:54:24,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1789326229, now seen corresponding path program 1 times [2022-04-18 15:54:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:54:24,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274736147] [2022-04-18 15:54:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:54:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:54:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:54:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:54:24,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:54:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274736147] [2022-04-18 15:54:24,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274736147] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:54:24,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:54:24,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:54:24,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693152805] [2022-04-18 15:54:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:54:24,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:54:24,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:54:24,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:54:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:54:24,346 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1085 [2022-04-18 15:54:24,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1040 transitions, 2098 flow. Second operand has 3 states, 3 states have (on average 1014.0) internal successors, (3042), 3 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:54:24,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1085 [2022-04-18 15:54:24,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:54:24,824 INFO L129 PetriNetUnfolder]: 40/1554 cut-off events. [2022-04-18 15:54:24,824 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 15:54:24,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 1554 events. 40/1554 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5733 event pairs, 0 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 1508. Up to 29 conditions per place. [2022-04-18 15:54:24,874 INFO L132 encePairwiseOnDemand]: 1082/1085 looper letters, 49 selfloop transitions, 2 changer transitions 0/1063 dead transitions. [2022-04-18 15:54:24,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1063 transitions, 2254 flow [2022-04-18 15:54:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:54:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:54:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3091 transitions. [2022-04-18 15:54:24,882 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.949615975422427 [2022-04-18 15:54:24,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3091 transitions. [2022-04-18 15:54:24,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3091 transitions. [2022-04-18 15:54:24,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:54:24,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3091 transitions. [2022-04-18 15:54:24,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1085.0) internal successors, (4340), 4 states have internal predecessors, (4340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1085.0) internal successors, (4340), 4 states have internal predecessors, (4340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,903 INFO L186 Difference]: Start difference. First operand has 1022 places, 1040 transitions, 2098 flow. Second operand 3 states and 3091 transitions. [2022-04-18 15:54:24,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1063 transitions, 2254 flow [2022-04-18 15:54:24,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1063 transitions, 2236 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:54:24,924 INFO L242 Difference]: Finished difference. Result has 1019 places, 1041 transitions, 2100 flow [2022-04-18 15:54:24,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1085, PETRI_DIFFERENCE_MINUEND_FLOW=2088, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1038, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2100, PETRI_PLACES=1019, PETRI_TRANSITIONS=1041} [2022-04-18 15:54:24,927 INFO L335 CegarLoopForPetriNet]: 1018 programPoint places, 1 predicate places. [2022-04-18 15:54:24,928 INFO L478 AbstractCegarLoop]: Abstraction has has 1019 places, 1041 transitions, 2100 flow [2022-04-18 15:54:24,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.0) internal successors, (3042), 3 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:24,930 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:54:24,930 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:54:24,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:54:24,931 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 15:54:24,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:54:24,932 INFO L85 PathProgramCache]: Analyzing trace with hash -452342041, now seen corresponding path program 1 times [2022-04-18 15:54:24,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:54:24,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106899036] [2022-04-18 15:54:24,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:54:24,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:54:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:54:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:54:25,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:54:25,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106899036] [2022-04-18 15:54:25,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106899036] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:54:25,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:54:25,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:54:25,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005116605] [2022-04-18 15:54:25,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:54:25,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:54:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:54:25,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:54:25,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:54:25,119 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1085 [2022-04-18 15:54:25,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1041 transitions, 2100 flow. Second operand has 6 states, 6 states have (on average 586.8333333333334) internal successors, (3521), 6 states have internal predecessors, (3521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:54:25,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:54:25,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1085 [2022-04-18 15:54:25,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand