./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-2.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/stateful01-2.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 e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e --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 17:51:30,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:51:30,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:51:30,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:51:30,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:51:30,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:51:30,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:51:30,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:51:30,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:51:30,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:51:30,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:51:30,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:51:30,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:51:30,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:51:30,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:51:30,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:51:30,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:51:30,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:51:30,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:51:30,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:51:30,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:51:30,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:51:30,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:51:30,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:51:30,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:51:30,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:51:30,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:51:30,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:51:30,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:51:30,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:51:30,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:51:30,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:51:30,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:51:30,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:51:30,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:51:30,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:51:30,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:51:30,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:51:30,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:51:30,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:51:30,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:51:30,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:51:30,676 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:51:30,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:51:30,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:51:30,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:51:30,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:51:30,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:51:30,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:51:30,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:51:30,679 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:51:30,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:51:30,680 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:51:30,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:51:30,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:51:30,681 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:51:30,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:51:30,682 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:51:30,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:51:30,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:51:30,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:51:30,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:51:30,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:51:30,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:51:30,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:51:30,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:51:30,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:51:30,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:51:30,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:51:30,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:51:30,684 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:51:30,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:51:30,685 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:51:30,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:51:30,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:51:30,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:51:30,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:51:30,986 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:51:30,987 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:51:30,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2023-08-28 17:51:32,029 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:51:32,248 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:51:32,255 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2023-08-28 17:51:32,274 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dd16d8a/0cbc80350c9c41b39a84e5656bab3499/FLAG0db9fb31d [2023-08-28 17:51:32,284 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dd16d8a/0cbc80350c9c41b39a84e5656bab3499 [2023-08-28 17:51:32,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:51:32,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:51:32,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:51:32,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:51:32,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:51:32,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495ca6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32, skipping insertion in model container [2023-08-28 17:51:32,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:51:32,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:51:32,592 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/stateful01-2.i[30826,30839] [2023-08-28 17:51:32,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:51:32,610 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:51:32,670 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/stateful01-2.i[30826,30839] [2023-08-28 17:51:32,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:51:32,715 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:51:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32 WrapperNode [2023-08-28 17:51:32,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:51:32,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:51:32,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:51:32,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:51:32,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,772 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2023-08-28 17:51:32,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:51:32,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:51:32,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:51:32,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:51:32,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:51:32,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:51:32,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:51:32,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:51:32,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (1/1) ... [2023-08-28 17:51:32,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:51:32,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:51:32,861 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 17:51:32,874 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 17:51:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:51:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-28 17:51:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-28 17:51:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-28 17:51:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-28 17:51:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:51:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-28 17:51:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:51:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:51:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:51:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:51:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:51:32,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:51:32,898 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 17:51:33,039 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:51:33,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:51:33,283 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:51:33,290 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:51:33,291 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 17:51:33,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:33 BoogieIcfgContainer [2023-08-28 17:51:33,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:51:33,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:51:33,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:51:33,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:51:33,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:51:32" (1/3) ... [2023-08-28 17:51:33,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1541bafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:51:33, skipping insertion in model container [2023-08-28 17:51:33,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:32" (2/3) ... [2023-08-28 17:51:33,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1541bafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:51:33, skipping insertion in model container [2023-08-28 17:51:33,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:33" (3/3) ... [2023-08-28 17:51:33,299 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2023-08-28 17:51:33,307 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:51:33,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:51:33,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-28 17:51:33,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:51:33,408 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:51:33,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 154 transitions, 324 flow [2023-08-28 17:51:33,543 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2023-08-28 17:51:33,544 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:51:33,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 152 events. 2/152 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 145 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-08-28 17:51:33,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 154 transitions, 324 flow [2023-08-28 17:51:33,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 136 transitions, 284 flow [2023-08-28 17:51:33,559 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:51:33,572 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 136 transitions, 284 flow [2023-08-28 17:51:33,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 136 transitions, 284 flow [2023-08-28 17:51:33,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 136 transitions, 284 flow [2023-08-28 17:51:33,620 INFO L130 PetriNetUnfolder]: 0/136 cut-off events. [2023-08-28 17:51:33,621 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:51:33,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 136 events. 0/136 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-28 17:51:33,625 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2023-08-28 17:51:37,134 INFO L134 LiptonReduction]: Checked pairs total: 17218 [2023-08-28 17:51:37,134 INFO L136 LiptonReduction]: Total number of compositions: 98 [2023-08-28 17:51:37,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:51:37,152 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;@1d79be6f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:51:37,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-28 17:51:37,153 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-28 17:51:37,153 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:51:37,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:37,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 17:51:37,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:37,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 507, now seen corresponding path program 1 times [2023-08-28 17:51:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:37,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305044227] [2023-08-28 17:51:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:37,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:37,254 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 17:51:37,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:37,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305044227] [2023-08-28 17:51:37,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305044227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:37,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:37,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 17:51:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93292930] [2023-08-28 17:51:37,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:37,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:51:37,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:37,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:51:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:51:37,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 252 [2023-08-28 17:51:37,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 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 17:51:37,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:37,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 252 [2023-08-28 17:51:37,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:37,408 INFO L130 PetriNetUnfolder]: 189/527 cut-off events. [2023-08-28 17:51:37,409 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-28 17:51:37,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 527 events. 189/527 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2754 event pairs, 189 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 828. Up to 352 conditions per place. [2023-08-28 17:51:37,418 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 21 selfloop transitions, 0 changer transitions 1/46 dead transitions. [2023-08-28 17:51:37,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 148 flow [2023-08-28 17:51:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:51:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:51:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 324 transitions. [2023-08-28 17:51:37,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2023-08-28 17:51:37,438 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 324 transitions. [2023-08-28 17:51:37,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 324 transitions. [2023-08-28 17:51:37,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:37,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 324 transitions. [2023-08-28 17:51:37,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:37,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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 17:51:37,453 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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 17:51:37,455 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 116 flow. Second operand 2 states and 324 transitions. [2023-08-28 17:51:37,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 148 flow [2023-08-28 17:51:37,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-28 17:51:37,460 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 93 flow [2023-08-28 17:51:37,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=93, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-08-28 17:51:37,472 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -9 predicate places. [2023-08-28 17:51:37,472 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 93 flow [2023-08-28 17:51:37,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 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 17:51:37,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:37,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:51:37,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:51:37,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:37,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash 478863023, now seen corresponding path program 1 times [2023-08-28 17:51:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615087137] [2023-08-28 17:51:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:37,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:37,663 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 17:51:37,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615087137] [2023-08-28 17:51:37,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615087137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:37,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752029820] [2023-08-28 17:51:37,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:37,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:37,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 252 [2023-08-28 17:51:37,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 17:51:37,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:37,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 252 [2023-08-28 17:51:37,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:37,842 INFO L130 PetriNetUnfolder]: 447/1057 cut-off events. [2023-08-28 17:51:37,843 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-28 17:51:37,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1057 events. 447/1057 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6164 event pairs, 259 based on Foata normal form. 0/963 useless extension candidates. Maximal degree in co-relation 1870. Up to 547 conditions per place. [2023-08-28 17:51:37,848 INFO L137 encePairwiseOnDemand]: 244/252 looper letters, 46 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2023-08-28 17:51:37,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 247 flow [2023-08-28 17:51:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2023-08-28 17:51:37,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2023-08-28 17:51:37,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2023-08-28 17:51:37,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2023-08-28 17:51:37,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:37,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2023-08-28 17:51:37,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 17:51:37,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:37,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:37,858 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 93 flow. Second operand 3 states and 462 transitions. [2023-08-28 17:51:37,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 247 flow [2023-08-28 17:51:37,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 69 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:51:37,860 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 145 flow [2023-08-28 17:51:37,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2023-08-28 17:51:37,861 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2023-08-28 17:51:37,861 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 145 flow [2023-08-28 17:51:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 17:51:37,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:37,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:51:37,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:37,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 171105784, now seen corresponding path program 1 times [2023-08-28 17:51:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:37,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500120639] [2023-08-28 17:51:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:37,963 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 17:51:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500120639] [2023-08-28 17:51:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500120639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:37,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:37,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:37,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833485102] [2023-08-28 17:51:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:37,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:37,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:37,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 252 [2023-08-28 17:51:37,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 145 flow. Second operand 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 17:51:37,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:37,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 252 [2023-08-28 17:51:37,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,100 INFO L130 PetriNetUnfolder]: 395/950 cut-off events. [2023-08-28 17:51:38,100 INFO L131 PetriNetUnfolder]: For 195/197 co-relation queries the response was YES. [2023-08-28 17:51:38,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 950 events. 395/950 cut-off events. For 195/197 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5469 event pairs, 299 based on Foata normal form. 0/855 useless extension candidates. Maximal degree in co-relation 1921. Up to 643 conditions per place. [2023-08-28 17:51:38,105 INFO L137 encePairwiseOnDemand]: 247/252 looper letters, 37 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2023-08-28 17:51:38,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 270 flow [2023-08-28 17:51:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2023-08-28 17:51:38,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5992063492063492 [2023-08-28 17:51:38,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2023-08-28 17:51:38,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2023-08-28 17:51:38,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2023-08-28 17:51:38,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 17:51:38,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,111 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 145 flow. Second operand 3 states and 453 transitions. [2023-08-28 17:51:38,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 270 flow [2023-08-28 17:51:38,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:38,114 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 175 flow [2023-08-28 17:51:38,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-08-28 17:51:38,115 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-08-28 17:51:38,115 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 175 flow [2023-08-28 17:51:38,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 17:51:38,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:38,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:51:38,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:38,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:38,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1000466297, now seen corresponding path program 1 times [2023-08-28 17:51:38,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:38,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565148706] [2023-08-28 17:51:38,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:38,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:38,149 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 17:51:38,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565148706] [2023-08-28 17:51:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565148706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:38,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:38,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:38,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669336123] [2023-08-28 17:51:38,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:38,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:38,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:38,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:38,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 252 [2023-08-28 17:51:38,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 17:51:38,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:38,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 252 [2023-08-28 17:51:38,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,317 INFO L130 PetriNetUnfolder]: 478/1130 cut-off events. [2023-08-28 17:51:38,317 INFO L131 PetriNetUnfolder]: For 518/548 co-relation queries the response was YES. [2023-08-28 17:51:38,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 1130 events. 478/1130 cut-off events. For 518/548 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6697 event pairs, 310 based on Foata normal form. 8/1048 useless extension candidates. Maximal degree in co-relation 2384. Up to 718 conditions per place. [2023-08-28 17:51:38,323 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 40 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2023-08-28 17:51:38,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 321 flow [2023-08-28 17:51:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-08-28 17:51:38,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6005291005291006 [2023-08-28 17:51:38,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-08-28 17:51:38,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-08-28 17:51:38,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-08-28 17:51:38,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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 17:51:38,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,331 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 175 flow. Second operand 3 states and 454 transitions. [2023-08-28 17:51:38,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 321 flow [2023-08-28 17:51:38,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:51:38,337 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 237 flow [2023-08-28 17:51:38,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-28 17:51:38,339 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2023-08-28 17:51:38,339 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 237 flow [2023-08-28 17:51:38,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 17:51:38,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:38,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:51:38,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:38,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -398796389, now seen corresponding path program 1 times [2023-08-28 17:51:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49800124] [2023-08-28 17:51:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:38,457 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 17:51:38,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:38,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49800124] [2023-08-28 17:51:38,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49800124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:38,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:38,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:51:38,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293123239] [2023-08-28 17:51:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:38,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:38,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 252 [2023-08-28 17:51:38,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 17:51:38,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:38,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 252 [2023-08-28 17:51:38,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,539 INFO L130 PetriNetUnfolder]: 89/360 cut-off events. [2023-08-28 17:51:38,539 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2023-08-28 17:51:38,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 360 events. 89/360 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1552 event pairs, 24 based on Foata normal form. 52/396 useless extension candidates. Maximal degree in co-relation 731. Up to 169 conditions per place. [2023-08-28 17:51:38,541 INFO L137 encePairwiseOnDemand]: 244/252 looper letters, 21 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-08-28 17:51:38,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 189 flow [2023-08-28 17:51:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-08-28 17:51:38,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2023-08-28 17:51:38,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-08-28 17:51:38,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-08-28 17:51:38,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-08-28 17:51:38,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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 17:51:38,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,547 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 237 flow. Second operand 3 states and 444 transitions. [2023-08-28 17:51:38,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 189 flow [2023-08-28 17:51:38,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 155 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-08-28 17:51:38,550 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 101 flow [2023-08-28 17:51:38,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-08-28 17:51:38,552 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -12 predicate places. [2023-08-28 17:51:38,552 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 101 flow [2023-08-28 17:51:38,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 17:51:38,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:38,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:51:38,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:38,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash -546754738, now seen corresponding path program 1 times [2023-08-28 17:51:38,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:38,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426005330] [2023-08-28 17:51:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:38,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:38,596 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 17:51:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:38,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426005330] [2023-08-28 17:51:38,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426005330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:38,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262205100] [2023-08-28 17:51:38,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:38,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:38,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:38,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:38,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 252 [2023-08-28 17:51:38,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 17:51:38,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:38,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 252 [2023-08-28 17:51:38,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,686 INFO L130 PetriNetUnfolder]: 91/326 cut-off events. [2023-08-28 17:51:38,687 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-28 17:51:38,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 326 events. 91/326 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1297 event pairs, 66 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 625. Up to 162 conditions per place. [2023-08-28 17:51:38,688 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 25 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-28 17:51:38,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 167 flow [2023-08-28 17:51:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-08-28 17:51:38,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5806878306878307 [2023-08-28 17:51:38,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-08-28 17:51:38,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-08-28 17:51:38,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-08-28 17:51:38,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 17:51:38,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,705 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 101 flow. Second operand 3 states and 439 transitions. [2023-08-28 17:51:38,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 167 flow [2023-08-28 17:51:38,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:51:38,708 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 97 flow [2023-08-28 17:51:38,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-28 17:51:38,711 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -13 predicate places. [2023-08-28 17:51:38,711 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 97 flow [2023-08-28 17:51:38,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 17:51:38,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:38,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:51:38,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:38,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:38,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1402732724, now seen corresponding path program 1 times [2023-08-28 17:51:38,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:38,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415394756] [2023-08-28 17:51:38,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:38,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:38,757 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 17:51:38,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:38,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415394756] [2023-08-28 17:51:38,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415394756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:38,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:38,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:38,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258837364] [2023-08-28 17:51:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:38,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:38,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 252 [2023-08-28 17:51:38,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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 17:51:38,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:38,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 252 [2023-08-28 17:51:38,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,838 INFO L130 PetriNetUnfolder]: 81/306 cut-off events. [2023-08-28 17:51:38,839 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-08-28 17:51:38,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 306 events. 81/306 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1218 event pairs, 76 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 580. Up to 188 conditions per place. [2023-08-28 17:51:38,840 INFO L137 encePairwiseOnDemand]: 249/252 looper letters, 17 selfloop transitions, 2 changer transitions 6/41 dead transitions. [2023-08-28 17:51:38,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 152 flow [2023-08-28 17:51:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2023-08-28 17:51:38,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.582010582010582 [2023-08-28 17:51:38,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2023-08-28 17:51:38,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2023-08-28 17:51:38,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2023-08-28 17:51:38,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 17:51:38,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,845 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 97 flow. Second operand 3 states and 440 transitions. [2023-08-28 17:51:38,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 152 flow [2023-08-28 17:51:38,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:38,847 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 81 flow [2023-08-28 17:51:38,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2023-08-28 17:51:38,847 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -14 predicate places. [2023-08-28 17:51:38,848 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 81 flow [2023-08-28 17:51:38,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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 17:51:38,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:38,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:51:38,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-28 17:51:38,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1640949145, now seen corresponding path program 1 times [2023-08-28 17:51:38,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:38,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527984285] [2023-08-28 17:51:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:38,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:38,882 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 17:51:38,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:38,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527984285] [2023-08-28 17:51:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527984285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:38,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:38,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297577457] [2023-08-28 17:51:38,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:38,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:38,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:38,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:38,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:38,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 252 [2023-08-28 17:51:38,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 17:51:38,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:38,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 252 [2023-08-28 17:51:38,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:38,942 INFO L130 PetriNetUnfolder]: 48/209 cut-off events. [2023-08-28 17:51:38,942 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-28 17:51:38,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 209 events. 48/209 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 744 event pairs, 43 based on Foata normal form. 8/215 useless extension candidates. Maximal degree in co-relation 366. Up to 113 conditions per place. [2023-08-28 17:51:38,942 INFO L137 encePairwiseOnDemand]: 250/252 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-08-28 17:51:38,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 128 flow [2023-08-28 17:51:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-08-28 17:51:38,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5767195767195767 [2023-08-28 17:51:38,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-08-28 17:51:38,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-08-28 17:51:38,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:38,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-08-28 17:51:38,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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 17:51:38,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:38,947 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 81 flow. Second operand 3 states and 436 transitions. [2023-08-28 17:51:38,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 128 flow [2023-08-28 17:51:38,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:38,948 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-28 17:51:38,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-28 17:51:38,949 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -19 predicate places. [2023-08-28 17:51:38,949 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-28 17:51:38,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 17:51:38,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-08-28 17:51:38,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-08-28 17:51:38,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-08-28 17:51:38,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-08-28 17:51:38,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-08-28 17:51:38,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-08-28 17:51:38,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-08-28 17:51:38,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-08-28 17:51:38,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-08-28 17:51:38,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 17:51:38,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:38,960 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:51:38,960 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:51:38,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:51:38 BasicIcfg [2023-08-28 17:51:38,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:51:38,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:51:38,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:51:38,964 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:51:38,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:33" (3/4) ... [2023-08-28 17:51:38,966 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:51:38,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-28 17:51:38,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-28 17:51:38,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-28 17:51:38,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:51:38,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:51:38,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:51:39,004 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:51:39,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:51:39,004 INFO L158 Benchmark]: Toolchain (without parser) took 6717.81ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 34.4MB in the beginning and 63.4MB in the end (delta: -29.1MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,005 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:51:39,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.88ms. Allocated memory is still 69.2MB. Free memory was 34.2MB in the beginning and 34.0MB in the end (delta: 156.8kB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.89ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 31.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,006 INFO L158 Benchmark]: Boogie Preprocessor took 45.62ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 31.8MB in the beginning and 79.2MB in the end (delta: -47.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,006 INFO L158 Benchmark]: RCFGBuilder took 473.56ms. Allocated memory is still 100.7MB. Free memory was 79.2MB in the beginning and 61.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,006 INFO L158 Benchmark]: TraceAbstraction took 5669.12ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 60.3MB in the beginning and 66.6MB in the end (delta: -6.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,006 INFO L158 Benchmark]: Witness Printer took 40.27ms. Allocated memory is still 146.8MB. Free memory was 66.6MB in the beginning and 63.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:39,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.88ms. Allocated memory is still 69.2MB. Free memory was 34.2MB in the beginning and 34.0MB in the end (delta: 156.8kB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.89ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 31.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.62ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 31.8MB in the beginning and 79.2MB in the end (delta: -47.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * RCFGBuilder took 473.56ms. Allocated memory is still 100.7MB. Free memory was 79.2MB in the beginning and 61.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5669.12ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 60.3MB in the beginning and 66.6MB in the end (delta: -6.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 40.27ms. Allocated memory is still 146.8MB. Free memory was 66.6MB in the beginning and 63.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 143 PlacesBefore, 59 PlacesAfterwards, 136 TransitionsBefore, 52 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 98 TotalNumberOfCompositions, 17218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6369, independent: 5813, independent conditional: 0, independent unconditional: 5813, dependent: 556, dependent conditional: 0, dependent unconditional: 556, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1814, independent: 1751, independent conditional: 0, independent unconditional: 1751, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6369, independent: 4062, independent conditional: 0, independent unconditional: 4062, dependent: 493, dependent conditional: 0, dependent unconditional: 493, unknown: 1814, unknown conditional: 0, unknown unconditional: 1814] , Statistics on independence cache: Total cache size (in pairs): 363, Positive cache size: 325, Positive conditional cache size: 0, Positive unconditional cache size: 325, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 215 locations, 24 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 343 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 557 IncrementalHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 114 mSDtfsCounter, 557 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:51:39,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE