./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/sync01.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/sync01.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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --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 17:51:34,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:51:34,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:51:34,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:51:34,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:51:34,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:51:34,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:51:34,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:51:34,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:51:34,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:51:34,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:51:34,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:51:34,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:51:34,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:51:34,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:51:34,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:51:34,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:51:34,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:51:34,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:51:34,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:51:34,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:51:34,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:51:34,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:51:34,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:51:34,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:51:34,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:51:34,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:51:34,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:51:34,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:51:34,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:51:34,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:51:34,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:51:34,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:51:34,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:51:34,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:51:34,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:51:34,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:51:34,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:51:34,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:51:34,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:51:34,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:51:34,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:51:34,766 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:51:34,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:51:34,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:51:34,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:51:34,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:51:34,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:51:34,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:51:34,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:51:34,770 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:51:34,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:51:34,771 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:51:34,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:51:34,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:51:34,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:51:34,772 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:51:34,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:51:34,773 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:51:34,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:51:34,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:51:34,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:51:34,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:51:34,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:51:34,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:51:34,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:51:34,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:51:34,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:51:34,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:51:34,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:51:34,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:51:34,775 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:51:34,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:51:34,776 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:51:34,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:51:35,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:51:35,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:51:35,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:51:35,099 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:51:35,100 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:51:35,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2023-08-28 17:51:36,253 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:51:36,522 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:51:36,523 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2023-08-28 17:51:36,539 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/977b9234c/b3f7c2e7caa84570a4f7176bc117bfc8/FLAG042abd1e0 [2023-08-28 17:51:36,555 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/977b9234c/b3f7c2e7caa84570a4f7176bc117bfc8 [2023-08-28 17:51:36,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:51:36,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:51:36,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:51:36,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:51:36,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:51:36,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:51:36" (1/1) ... [2023-08-28 17:51:36,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5358b2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:36, skipping insertion in model container [2023-08-28 17:51:36,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:51:36" (1/1) ... [2023-08-28 17:51:36,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:51:36,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:51:37,058 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/sync01.i[42004,42017] [2023-08-28 17:51:37,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:51:37,075 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:51:37,131 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/sync01.i[42004,42017] [2023-08-28 17:51:37,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:51:37,212 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:51:37,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37 WrapperNode [2023-08-28 17:51:37,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:51:37,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:51:37,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:51:37,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:51:37,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,282 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 89 [2023-08-28 17:51:37,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:51:37,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:51:37,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:51:37,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:51:37,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:51:37,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:51:37,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:51:37,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:51:37,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (1/1) ... [2023-08-28 17:51:37,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:51:37,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:51:37,374 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 17:51:37,401 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 17:51:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:51:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:51:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:51:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-28 17:51:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-28 17:51:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:51:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:51:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:51:37,417 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 17:51:37,598 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:51:37,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:51:37,857 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:51:37,864 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:51:37,871 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-28 17:51:37,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:37 BoogieIcfgContainer [2023-08-28 17:51:37,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:51:37,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:51:37,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:51:37,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:51:37,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:51:36" (1/3) ... [2023-08-28 17:51:37,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b89669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:51:37, skipping insertion in model container [2023-08-28 17:51:37,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:51:37" (2/3) ... [2023-08-28 17:51:37,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b89669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:51:37, skipping insertion in model container [2023-08-28 17:51:37,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:37" (3/3) ... [2023-08-28 17:51:37,885 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2023-08-28 17:51:37,892 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:51:37,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:51:37,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-28 17:51:37,902 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:51:37,967 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:51:37,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 144 transitions, 304 flow [2023-08-28 17:51:38,048 INFO L130 PetriNetUnfolder]: 5/142 cut-off events. [2023-08-28 17:51:38,049 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:51:38,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 142 events. 5/142 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-28 17:51:38,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 144 transitions, 304 flow [2023-08-28 17:51:38,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 130 transitions, 272 flow [2023-08-28 17:51:38,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:51:38,070 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 130 transitions, 272 flow [2023-08-28 17:51:38,073 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 130 transitions, 272 flow [2023-08-28 17:51:38,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 130 transitions, 272 flow [2023-08-28 17:51:38,101 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2023-08-28 17:51:38,102 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:51:38,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 130 events. 4/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-28 17:51:38,105 INFO L119 LiptonReduction]: Number of co-enabled transitions 3068 [2023-08-28 17:51:42,612 INFO L134 LiptonReduction]: Checked pairs total: 14684 [2023-08-28 17:51:42,612 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-28 17:51:42,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:51:42,651 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;@6255354, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:51:42,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-28 17:51:42,674 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-28 17:51:42,675 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:51:42,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:42,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 17:51:42,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:42,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash 490, now seen corresponding path program 1 times [2023-08-28 17:51:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:42,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707044230] [2023-08-28 17:51:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:42,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:42,779 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 17:51:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:42,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707044230] [2023-08-28 17:51:42,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707044230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:42,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:42,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 17:51:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106540868] [2023-08-28 17:51:42,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:42,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:51:42,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:51:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:51:42,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 239 [2023-08-28 17:51:42,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 108 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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 17:51:42,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:42,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 239 [2023-08-28 17:51:42,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:42,919 INFO L130 PetriNetUnfolder]: 96/240 cut-off events. [2023-08-28 17:51:42,919 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-28 17:51:42,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 240 events. 96/240 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 956 event pairs, 72 based on Foata normal form. 25/218 useless extension candidates. Maximal degree in co-relation 372. Up to 169 conditions per place. [2023-08-28 17:51:42,925 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 17 selfloop transitions, 0 changer transitions 1/42 dead transitions. [2023-08-28 17:51:42,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 132 flow [2023-08-28 17:51:42,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:51:42,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:51:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 296 transitions. [2023-08-28 17:51:42,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6192468619246861 [2023-08-28 17:51:42,946 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 296 transitions. [2023-08-28 17:51:42,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 296 transitions. [2023-08-28 17:51:42,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:42,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 296 transitions. [2023-08-28 17:51:42,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:51:42,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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 17:51:42,962 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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 17:51:42,964 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 108 flow. Second operand 2 states and 296 transitions. [2023-08-28 17:51:42,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 132 flow [2023-08-28 17:51:42,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-28 17:51:42,969 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 85 flow [2023-08-28 17:51:42,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=85, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2023-08-28 17:51:42,974 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -7 predicate places. [2023-08-28 17:51:42,975 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 85 flow [2023-08-28 17:51:42,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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 17:51:42,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:42,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:51:42,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:51:42,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:42,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash 465575085, now seen corresponding path program 1 times [2023-08-28 17:51:42,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:42,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035965091] [2023-08-28 17:51:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:42,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:43,122 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 17:51:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035965091] [2023-08-28 17:51:43,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035965091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:43,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:43,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:43,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927856087] [2023-08-28 17:51:43,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:43,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:43,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 239 [2023-08-28 17:51:43,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 17:51:43,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:43,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 239 [2023-08-28 17:51:43,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:43,292 INFO L130 PetriNetUnfolder]: 494/1004 cut-off events. [2023-08-28 17:51:43,292 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-28 17:51:43,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1004 events. 494/1004 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5193 event pairs, 174 based on Foata normal form. 0/942 useless extension candidates. Maximal degree in co-relation 1871. Up to 510 conditions per place. [2023-08-28 17:51:43,297 INFO L137 encePairwiseOnDemand]: 225/239 looper letters, 46 selfloop transitions, 10 changer transitions 0/66 dead transitions. [2023-08-28 17:51:43,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 66 transitions, 249 flow [2023-08-28 17:51:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-28 17:51:43,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5774058577405857 [2023-08-28 17:51:43,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-28 17:51:43,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-28 17:51:43,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:43,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-28 17:51:43,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 17:51:43,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,305 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 85 flow. Second operand 3 states and 414 transitions. [2023-08-28 17:51:43,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 66 transitions, 249 flow [2023-08-28 17:51:43,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 66 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:51:43,306 INFO L231 Difference]: Finished difference. Result has 47 places, 51 transitions, 173 flow [2023-08-28 17:51:43,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=47, PETRI_TRANSITIONS=51} [2023-08-28 17:51:43,307 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2023-08-28 17:51:43,308 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 51 transitions, 173 flow [2023-08-28 17:51:43,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 17:51:43,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:43,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:43,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:51:43,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:43,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash 381497970, now seen corresponding path program 1 times [2023-08-28 17:51:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:43,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577219995] [2023-08-28 17:51:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:43,444 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 17:51:43,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:43,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577219995] [2023-08-28 17:51:43,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577219995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:43,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:43,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:43,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380095680] [2023-08-28 17:51:43,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:43,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:43,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:43,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 239 [2023-08-28 17:51:43,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 51 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 17:51:43,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:43,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 239 [2023-08-28 17:51:43,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:43,523 INFO L130 PetriNetUnfolder]: 138/368 cut-off events. [2023-08-28 17:51:43,523 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-28 17:51:43,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 368 events. 138/368 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1683 event pairs, 55 based on Foata normal form. 12/356 useless extension candidates. Maximal degree in co-relation 720. Up to 181 conditions per place. [2023-08-28 17:51:43,526 INFO L137 encePairwiseOnDemand]: 235/239 looper letters, 18 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2023-08-28 17:51:43,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 187 flow [2023-08-28 17:51:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-28 17:51:43,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5662482566248257 [2023-08-28 17:51:43,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-28 17:51:43,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-28 17:51:43,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:43,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-28 17:51:43,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 17:51:43,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,533 INFO L175 Difference]: Start difference. First operand has 47 places, 51 transitions, 173 flow. Second operand 3 states and 406 transitions. [2023-08-28 17:51:43,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 187 flow [2023-08-28 17:51:43,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:43,539 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 135 flow [2023-08-28 17:51:43,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-08-28 17:51:43,540 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -7 predicate places. [2023-08-28 17:51:43,540 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 135 flow [2023-08-28 17:51:43,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 17:51:43,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:43,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:43,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:51:43,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:43,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:43,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1642670470, now seen corresponding path program 1 times [2023-08-28 17:51:43,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:43,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113623342] [2023-08-28 17:51:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:43,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:43,613 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 17:51:43,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113623342] [2023-08-28 17:51:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113623342] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:43,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:43,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344651656] [2023-08-28 17:51:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:43,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:43,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:43,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 239 [2023-08-28 17:51:43,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 17:51:43,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:43,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 239 [2023-08-28 17:51:43,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:43,712 INFO L130 PetriNetUnfolder]: 270/578 cut-off events. [2023-08-28 17:51:43,713 INFO L131 PetriNetUnfolder]: For 85/91 co-relation queries the response was YES. [2023-08-28 17:51:43,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 578 events. 270/578 cut-off events. For 85/91 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2477 event pairs, 104 based on Foata normal form. 4/546 useless extension candidates. Maximal degree in co-relation 1240. Up to 332 conditions per place. [2023-08-28 17:51:43,716 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 30 selfloop transitions, 10 changer transitions 4/59 dead transitions. [2023-08-28 17:51:43,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 268 flow [2023-08-28 17:51:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-08-28 17:51:43,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5704323570432357 [2023-08-28 17:51:43,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-08-28 17:51:43,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-08-28 17:51:43,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:43,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-08-28 17:51:43,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 17:51:43,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:43,722 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 135 flow. Second operand 3 states and 409 transitions. [2023-08-28 17:51:43,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 268 flow [2023-08-28 17:51:43,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:43,724 INFO L231 Difference]: Finished difference. Result has 46 places, 51 transitions, 217 flow [2023-08-28 17:51:43,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=46, PETRI_TRANSITIONS=51} [2023-08-28 17:51:43,725 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -5 predicate places. [2023-08-28 17:51:43,725 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 51 transitions, 217 flow [2023-08-28 17:51:43,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 17:51:43,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:43,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:43,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:51:43,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:43,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:43,727 INFO L85 PathProgramCache]: Analyzing trace with hash 188098971, now seen corresponding path program 1 times [2023-08-28 17:51:43,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:43,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146199243] [2023-08-28 17:51:43,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:43,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:43,856 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 17:51:43,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:43,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146199243] [2023-08-28 17:51:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146199243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:43,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:43,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:51:43,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125459035] [2023-08-28 17:51:43,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:43,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-28 17:51:43,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-28 17:51:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-28 17:51:43,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 239 [2023-08-28 17:51:43,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 51 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 17:51:43,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:43,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 239 [2023-08-28 17:51:43,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:44,011 INFO L130 PetriNetUnfolder]: 238/519 cut-off events. [2023-08-28 17:51:44,011 INFO L131 PetriNetUnfolder]: For 336/378 co-relation queries the response was YES. [2023-08-28 17:51:44,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 519 events. 238/519 cut-off events. For 336/378 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2301 event pairs, 37 based on Foata normal form. 40/539 useless extension candidates. Maximal degree in co-relation 1354. Up to 321 conditions per place. [2023-08-28 17:51:44,014 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 24 selfloop transitions, 6 changer transitions 0/59 dead transitions. [2023-08-28 17:51:44,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 294 flow [2023-08-28 17:51:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-28 17:51:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-28 17:51:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2023-08-28 17:51:44,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5177824267782427 [2023-08-28 17:51:44,017 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2023-08-28 17:51:44,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2023-08-28 17:51:44,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:44,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2023-08-28 17:51:44,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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 17:51:44,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 17:51:44,021 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 17:51:44,021 INFO L175 Difference]: Start difference. First operand has 46 places, 51 transitions, 217 flow. Second operand 4 states and 495 transitions. [2023-08-28 17:51:44,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 294 flow [2023-08-28 17:51:44,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 268 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-28 17:51:44,024 INFO L231 Difference]: Finished difference. Result has 49 places, 54 transitions, 229 flow [2023-08-28 17:51:44,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=229, PETRI_PLACES=49, PETRI_TRANSITIONS=54} [2023-08-28 17:51:44,025 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2023-08-28 17:51:44,025 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 54 transitions, 229 flow [2023-08-28 17:51:44,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 17:51:44,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:44,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:44,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:51:44,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:44,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:44,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1943759105, now seen corresponding path program 2 times [2023-08-28 17:51:44,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:44,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96133526] [2023-08-28 17:51:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:44,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:44,101 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 17:51:44,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:44,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96133526] [2023-08-28 17:51:44,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96133526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:44,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:44,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:51:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001057710] [2023-08-28 17:51:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:44,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-28 17:51:44,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:44,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-28 17:51:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-28 17:51:44,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 239 [2023-08-28 17:51:44,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 54 transitions, 229 flow. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 17:51:44,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:44,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 239 [2023-08-28 17:51:44,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:44,220 INFO L130 PetriNetUnfolder]: 38/143 cut-off events. [2023-08-28 17:51:44,220 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2023-08-28 17:51:44,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 143 events. 38/143 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 382 event pairs, 3 based on Foata normal form. 8/151 useless extension candidates. Maximal degree in co-relation 361. Up to 33 conditions per place. [2023-08-28 17:51:44,221 INFO L137 encePairwiseOnDemand]: 231/239 looper letters, 15 selfloop transitions, 10 changer transitions 4/44 dead transitions. [2023-08-28 17:51:44,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 218 flow [2023-08-28 17:51:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 17:51:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 17:51:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-08-28 17:51:44,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112970711297071 [2023-08-28 17:51:44,224 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-08-28 17:51:44,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-08-28 17:51:44,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:44,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-08-28 17:51:44,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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 17:51:44,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 17:51:44,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 17:51:44,228 INFO L175 Difference]: Start difference. First operand has 49 places, 54 transitions, 229 flow. Second operand 5 states and 611 transitions. [2023-08-28 17:51:44,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 218 flow [2023-08-28 17:51:44,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 196 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-28 17:51:44,230 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 136 flow [2023-08-28 17:51:44,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2023-08-28 17:51:44,231 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2023-08-28 17:51:44,231 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 136 flow [2023-08-28 17:51:44,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 17:51:44,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:51:44,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:51:44,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:51:44,232 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-28 17:51:44,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:51:44,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1030111440, now seen corresponding path program 1 times [2023-08-28 17:51:44,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:51:44,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405790134] [2023-08-28 17:51:44,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:51:44,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:51:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:51:44,261 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 17:51:44,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:51:44,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405790134] [2023-08-28 17:51:44,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405790134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:51:44,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:51:44,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:51:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632380388] [2023-08-28 17:51:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:51:44,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:51:44,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:51:44,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:51:44,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:51:44,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 239 [2023-08-28 17:51:44,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 17:51:44,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:51:44,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 239 [2023-08-28 17:51:44,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:51:44,319 INFO L130 PetriNetUnfolder]: 37/128 cut-off events. [2023-08-28 17:51:44,319 INFO L131 PetriNetUnfolder]: For 73/74 co-relation queries the response was YES. [2023-08-28 17:51:44,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 128 events. 37/128 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 330 event pairs, 28 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 333. Up to 92 conditions per place. [2023-08-28 17:51:44,320 INFO L137 encePairwiseOnDemand]: 237/239 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-08-28 17:51:44,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 182 flow [2023-08-28 17:51:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:51:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:51:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-28 17:51:44,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5467224546722455 [2023-08-28 17:51:44,321 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-28 17:51:44,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-28 17:51:44,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:51:44,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-28 17:51:44,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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 17:51:44,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:44,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 17:51:44,324 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 136 flow. Second operand 3 states and 392 transitions. [2023-08-28 17:51:44,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 182 flow [2023-08-28 17:51:44,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 152 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-28 17:51:44,326 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-28 17:51:44,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=104, 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 17:51:44,327 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2023-08-28 17:51:44,327 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-28 17:51:44,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 17:51:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2023-08-28 17:51:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-08-28 17:51:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-08-28 17:51:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-08-28 17:51:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-08-28 17:51:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-08-28 17:51:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-08-28 17:51:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-08-28 17:51:44,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:51:44,336 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-28 17:51:44,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:51:44,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:51:44,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:51:44 BasicIcfg [2023-08-28 17:51:44,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:51:44,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:51:44,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:51:44,351 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:51:44,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:51:37" (3/4) ... [2023-08-28 17:51:44,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:51:44,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-28 17:51:44,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-28 17:51:44,363 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-28 17:51:44,363 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:51:44,363 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:51:44,363 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:51:44,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:51:44,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:51:44,404 INFO L158 Benchmark]: Toolchain (without parser) took 7845.47ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 36.8MB in the beginning and 71.1MB in the end (delta: -34.3MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,404 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:51:44,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.29ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 45.2MB in the end (delta: -8.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.39ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 42.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,405 INFO L158 Benchmark]: Boogie Preprocessor took 55.06ms. Allocated memory is still 69.2MB. Free memory was 42.5MB in the beginning and 40.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,405 INFO L158 Benchmark]: RCFGBuilder took 534.06ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 42.2MB in the end (delta: -1.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,405 INFO L158 Benchmark]: TraceAbstraction took 6474.65ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 41.5MB in the beginning and 74.2MB in the end (delta: -32.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,406 INFO L158 Benchmark]: Witness Printer took 52.80ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:51:44,408 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 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.29ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 45.2MB in the end (delta: -8.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.39ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 42.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.06ms. Allocated memory is still 69.2MB. Free memory was 42.5MB in the beginning and 40.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.06ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 42.2MB in the end (delta: -1.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6474.65ms. Allocated memory was 69.2MB in the beginning and 146.8MB in the end (delta: 77.6MB). Free memory was 41.5MB in the beginning and 74.2MB in the end (delta: -32.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 52.80ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 133 PlacesBefore, 51 PlacesAfterwards, 130 TransitionsBefore, 48 TransitionsAfterwards, 3068 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 95 TotalNumberOfCompositions, 14684 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4418, independent: 3944, independent conditional: 0, independent unconditional: 3944, dependent: 474, dependent conditional: 0, dependent unconditional: 474, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1485, independent: 1428, independent conditional: 0, independent unconditional: 1428, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4418, independent: 2516, independent conditional: 0, independent unconditional: 2516, dependent: 417, dependent conditional: 0, dependent unconditional: 417, unknown: 1485, unknown conditional: 0, unknown unconditional: 1485] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 220, Positive conditional cache size: 0, Positive unconditional cache size: 220, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 956]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 962]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 963]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 964]: 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, 192 locations, 18 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: 6.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 539 IncrementalHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 29 mSDtfsCounter, 539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, 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, 0.4s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:51:44,436 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