./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:25:23,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:25:23,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:25:23,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:25:23,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:25:23,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:25:23,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:25:23,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:25:23,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:25:23,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:25:23,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:25:23,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:25:23,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:25:23,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:25:23,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:25:23,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:25:23,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:25:23,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:25:23,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:25:23,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:25:23,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:25:23,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:25:23,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:25:23,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:25:23,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:25:23,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:25:23,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:25:23,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:25:23,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:25:23,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:25:23,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:25:23,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:25:23,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:25:23,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:25:23,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:25:23,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:25:23,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:25:23,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:25:23,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:25:23,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:25:23,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:25:23,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:25:23,802 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:25:23,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:25:23,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:25:23,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:25:23,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:25:23,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:25:23,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:25:23,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:25:23,805 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:25:23,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:25:23,805 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:25:23,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:25:23,806 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:25:23,807 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:25:23,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:25:23,807 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:25:23,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:25:23,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:25:23,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:25:23,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:25:23,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:25:23,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:25:23,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:25:23,809 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:25:23,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:25:23,809 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:25:23,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:25:24,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:25:24,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:25:24,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:25:24,068 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:25:24,069 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:25:24,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 21:25:24,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:25:25,141 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:25:25,144 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 21:25:25,157 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4afd0eb/87d85b46f3754032980e6b27f9df8599/FLAGbefd57d0e [2023-08-31 21:25:25,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a4afd0eb/87d85b46f3754032980e6b27f9df8599 [2023-08-31 21:25:25,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:25:25,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:25:25,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:25:25,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:25:25,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:25:25,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f31383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25, skipping insertion in model container [2023-08-31 21:25:25,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:25:25,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:25:25,296 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-31 21:25:25,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:25:25,445 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:25:25,455 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-31 21:25:25,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:25:25,520 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:25:25,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25 WrapperNode [2023-08-31 21:25:25,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:25:25,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:25:25,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:25:25,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:25:25,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,580 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 173 [2023-08-31 21:25:25,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:25:25,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:25:25,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:25:25,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:25:25,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:25:25,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:25:25,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:25:25,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:25:25,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (1/1) ... [2023-08-31 21:25:25,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:25:25,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:25:25,646 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) [2023-08-31 21:25:25,664 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 [2023-08-31 21:25:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 21:25:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:25:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:25:25,673 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:25:25,767 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:25:25,769 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:25:25,987 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:25:25,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:25:25,994 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 21:25:25,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:25 BoogieIcfgContainer [2023-08-31 21:25:25,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:25:25,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:25:25,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:25:25,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:25:25,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:25:25" (1/3) ... [2023-08-31 21:25:25,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48dfdebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:25:25, skipping insertion in model container [2023-08-31 21:25:25,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:25" (2/3) ... [2023-08-31 21:25:25,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48dfdebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:25:25, skipping insertion in model container [2023-08-31 21:25:25,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:25" (3/3) ... [2023-08-31 21:25:26,000 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 21:25:26,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:25:26,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:25:26,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-31 21:25:26,010 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:25:26,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 21:25:26,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 202 transitions, 409 flow [2023-08-31 21:25:26,184 INFO L130 PetriNetUnfolder]: 8/204 cut-off events. [2023-08-31 21:25:26,184 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:25:26,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 204 events. 8/204 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 211 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2023-08-31 21:25:26,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 202 transitions, 409 flow [2023-08-31 21:25:26,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 200 transitions, 403 flow [2023-08-31 21:25:26,201 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:25:26,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 200 transitions, 403 flow [2023-08-31 21:25:26,208 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 200 transitions, 403 flow [2023-08-31 21:25:26,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 200 transitions, 403 flow [2023-08-31 21:25:26,241 INFO L130 PetriNetUnfolder]: 8/200 cut-off events. [2023-08-31 21:25:26,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:25:26,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 200 events. 8/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 203 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2023-08-31 21:25:26,247 INFO L119 LiptonReduction]: Number of co-enabled transitions 12180 [2023-08-31 21:25:29,845 INFO L134 LiptonReduction]: Checked pairs total: 32354 [2023-08-31 21:25:29,845 INFO L136 LiptonReduction]: Total number of compositions: 175 [2023-08-31 21:25:29,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:25:29,863 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;@6e1c658a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:25:29,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-31 21:25:29,869 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-31 21:25:29,870 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:25:29,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:29,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:25:29,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:29,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:29,876 INFO L85 PathProgramCache]: Analyzing trace with hash 195755589, now seen corresponding path program 1 times [2023-08-31 21:25:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253689526] [2023-08-31 21:25:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:30,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:30,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253689526] [2023-08-31 21:25:30,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253689526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:30,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:30,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:30,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204858365] [2023-08-31 21:25:30,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:30,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:30,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:30,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:30,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:30,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 377 [2023-08-31 21:25:30,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2023-08-31 21:25:30,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:30,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 377 [2023-08-31 21:25:30,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:30,246 INFO L130 PetriNetUnfolder]: 318/966 cut-off events. [2023-08-31 21:25:30,247 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:25:30,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 966 events. 318/966 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5894 event pairs, 59 based on Foata normal form. 29/910 useless extension candidates. Maximal degree in co-relation 1639. Up to 346 conditions per place. [2023-08-31 21:25:30,252 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 54 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2023-08-31 21:25:30,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 78 transitions, 273 flow [2023-08-31 21:25:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2023-08-31 21:25:30,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5490716180371353 [2023-08-31 21:25:30,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 621 transitions. [2023-08-31 21:25:30,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 621 transitions. [2023-08-31 21:25:30,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:30,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 621 transitions. [2023-08-31 21:25:30,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-08-31 21:25:30,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,273 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 113 flow. Second operand 3 states and 621 transitions. [2023-08-31 21:25:30,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 78 transitions, 273 flow [2023-08-31 21:25:30,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 78 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:30,277 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 130 flow [2023-08-31 21:25:30,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2023-08-31 21:25:30,280 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-31 21:25:30,280 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 130 flow [2023-08-31 21:25:30,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2023-08-31 21:25:30,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:30,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:30,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:25:30,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:30,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:30,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1725663993, now seen corresponding path program 1 times [2023-08-31 21:25:30,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:30,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127717351] [2023-08-31 21:25:30,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:30,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:30,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:30,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127717351] [2023-08-31 21:25:30,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127717351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:30,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:30,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:30,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378966990] [2023-08-31 21:25:30,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:30,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:30,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:30,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 377 [2023-08-31 21:25:30,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2023-08-31 21:25:30,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:30,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 377 [2023-08-31 21:25:30,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:30,446 INFO L130 PetriNetUnfolder]: 378/1079 cut-off events. [2023-08-31 21:25:30,446 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2023-08-31 21:25:30,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 1079 events. 378/1079 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6335 event pairs, 325 based on Foata normal form. 0/984 useless extension candidates. Maximal degree in co-relation 1962. Up to 754 conditions per place. [2023-08-31 21:25:30,450 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 47 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2023-08-31 21:25:30,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 270 flow [2023-08-31 21:25:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-31 21:25:30,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2023-08-31 21:25:30,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-31 21:25:30,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-31 21:25:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:30,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-31 21:25:30,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2023-08-31 21:25:30,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,457 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 130 flow. Second operand 3 states and 598 transitions. [2023-08-31 21:25:30,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 270 flow [2023-08-31 21:25:30,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:30,461 INFO L231 Difference]: Finished difference. Result has 61 places, 59 transitions, 162 flow [2023-08-31 21:25:30,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=59} [2023-08-31 21:25:30,461 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-31 21:25:30,462 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 162 flow [2023-08-31 21:25:30,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2023-08-31 21:25:30,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:30,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:30,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:25:30,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:30,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:30,464 INFO L85 PathProgramCache]: Analyzing trace with hash -810340528, now seen corresponding path program 1 times [2023-08-31 21:25:30,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:30,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134147055] [2023-08-31 21:25:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:30,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:30,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:30,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134147055] [2023-08-31 21:25:30,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134147055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:30,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:30,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:30,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659484223] [2023-08-31 21:25:30,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:30,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:30,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:30,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:30,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 377 [2023-08-31 21:25:30,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:30,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:30,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 377 [2023-08-31 21:25:30,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:30,663 INFO L130 PetriNetUnfolder]: 550/1579 cut-off events. [2023-08-31 21:25:30,664 INFO L131 PetriNetUnfolder]: For 76/94 co-relation queries the response was YES. [2023-08-31 21:25:30,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2954 conditions, 1579 events. 550/1579 cut-off events. For 76/94 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 10845 event pairs, 83 based on Foata normal form. 9/1479 useless extension candidates. Maximal degree in co-relation 2943. Up to 596 conditions per place. [2023-08-31 21:25:30,677 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 58 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-31 21:25:30,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 344 flow [2023-08-31 21:25:30,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 619 transitions. [2023-08-31 21:25:30,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5473032714412025 [2023-08-31 21:25:30,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 619 transitions. [2023-08-31 21:25:30,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 619 transitions. [2023-08-31 21:25:30,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:30,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 619 transitions. [2023-08-31 21:25:30,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2023-08-31 21:25:30,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,683 INFO L175 Difference]: Start difference. First operand has 61 places, 59 transitions, 162 flow. Second operand 3 states and 619 transitions. [2023-08-31 21:25:30,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 344 flow [2023-08-31 21:25:30,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:30,687 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 182 flow [2023-08-31 21:25:30,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2023-08-31 21:25:30,688 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2023-08-31 21:25:30,688 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 182 flow [2023-08-31 21:25:30,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:30,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:30,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:30,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:25:30,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:30,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:30,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1501933197, now seen corresponding path program 1 times [2023-08-31 21:25:30,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:30,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21201253] [2023-08-31 21:25:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21201253] [2023-08-31 21:25:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21201253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:30,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:30,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275501926] [2023-08-31 21:25:30,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:30,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:30,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:30,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:30,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:30,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 377 [2023-08-31 21:25:30,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:30,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:30,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 377 [2023-08-31 21:25:30,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:30,863 INFO L130 PetriNetUnfolder]: 472/1458 cut-off events. [2023-08-31 21:25:30,863 INFO L131 PetriNetUnfolder]: For 118/138 co-relation queries the response was YES. [2023-08-31 21:25:30,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2757 conditions, 1458 events. 472/1458 cut-off events. For 118/138 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10133 event pairs, 390 based on Foata normal form. 9/1335 useless extension candidates. Maximal degree in co-relation 2745. Up to 974 conditions per place. [2023-08-31 21:25:30,869 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 43 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2023-08-31 21:25:30,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 304 flow [2023-08-31 21:25:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2023-08-31 21:25:30,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278514588859416 [2023-08-31 21:25:30,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2023-08-31 21:25:30,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2023-08-31 21:25:30,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:30,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2023-08-31 21:25:30,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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) [2023-08-31 21:25:30,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:30,878 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 182 flow. Second operand 3 states and 597 transitions. [2023-08-31 21:25:30,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 304 flow [2023-08-31 21:25:30,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:30,882 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 198 flow [2023-08-31 21:25:30,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2023-08-31 21:25:30,883 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-31 21:25:30,883 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 198 flow [2023-08-31 21:25:30,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:30,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:30,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:25:30,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:30,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1476521583, now seen corresponding path program 1 times [2023-08-31 21:25:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:30,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019641245] [2023-08-31 21:25:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:30,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:30,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019641245] [2023-08-31 21:25:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019641245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:25:30,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530904237] [2023-08-31 21:25:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:30,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:30,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:30,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:30,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 377 [2023-08-31 21:25:30,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2023-08-31 21:25:30,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:30,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 377 [2023-08-31 21:25:30,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,037 INFO L130 PetriNetUnfolder]: 251/782 cut-off events. [2023-08-31 21:25:31,037 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-31 21:25:31,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1547 conditions, 782 events. 251/782 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4422 event pairs, 95 based on Foata normal form. 19/737 useless extension candidates. Maximal degree in co-relation 1534. Up to 345 conditions per place. [2023-08-31 21:25:31,039 INFO L137 encePairwiseOnDemand]: 367/377 looper letters, 53 selfloop transitions, 10 changer transitions 0/85 dead transitions. [2023-08-31 21:25:31,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 367 flow [2023-08-31 21:25:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-08-31 21:25:31,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322723253757736 [2023-08-31 21:25:31,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2023-08-31 21:25:31,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,045 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 198 flow. Second operand 3 states and 602 transitions. [2023-08-31 21:25:31,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 367 flow [2023-08-31 21:25:31,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 85 transitions, 344 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-31 21:25:31,047 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 210 flow [2023-08-31 21:25:31,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2023-08-31 21:25:31,047 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-31 21:25:31,047 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 210 flow [2023-08-31 21:25:31,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2023-08-31 21:25:31,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:25:31,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash 889366370, now seen corresponding path program 1 times [2023-08-31 21:25:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641689385] [2023-08-31 21:25:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641689385] [2023-08-31 21:25:31,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641689385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:31,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321678136] [2023-08-31 21:25:31,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:31,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:31,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:31,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-31 21:25:31,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:31,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-31 21:25:31,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,147 INFO L130 PetriNetUnfolder]: 250/786 cut-off events. [2023-08-31 21:25:31,147 INFO L131 PetriNetUnfolder]: For 155/159 co-relation queries the response was YES. [2023-08-31 21:25:31,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 786 events. 250/786 cut-off events. For 155/159 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4463 event pairs, 187 based on Foata normal form. 2/712 useless extension candidates. Maximal degree in co-relation 1746. Up to 525 conditions per place. [2023-08-31 21:25:31,151 INFO L137 encePairwiseOnDemand]: 374/377 looper letters, 45 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2023-08-31 21:25:31,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 330 flow [2023-08-31 21:25:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 589 transitions. [2023-08-31 21:25:31,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207780725022104 [2023-08-31 21:25:31,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 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) [2023-08-31 21:25:31,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,157 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 210 flow. Second operand 3 states and 589 transitions. [2023-08-31 21:25:31,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 330 flow [2023-08-31 21:25:31,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 71 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:31,159 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 206 flow [2023-08-31 21:25:31,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2023-08-31 21:25:31,161 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-31 21:25:31,161 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 206 flow [2023-08-31 21:25:31,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:31,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:25:31,164 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1603755271, now seen corresponding path program 1 times [2023-08-31 21:25:31,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095281793] [2023-08-31 21:25:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095281793] [2023-08-31 21:25:31,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095281793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:31,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679246376] [2023-08-31 21:25:31,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:31,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:31,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-31 21:25:31,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:31,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-31 21:25:31,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,285 INFO L130 PetriNetUnfolder]: 316/942 cut-off events. [2023-08-31 21:25:31,286 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2023-08-31 21:25:31,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 942 events. 316/942 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5437 event pairs, 226 based on Foata normal form. 2/839 useless extension candidates. Maximal degree in co-relation 2087. Up to 658 conditions per place. [2023-08-31 21:25:31,289 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 58 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2023-08-31 21:25:31,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 82 transitions, 392 flow [2023-08-31 21:25:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-08-31 21:25:31,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322723253757736 [2023-08-31 21:25:31,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-08-31 21:25:31,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2023-08-31 21:25:31,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,294 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 206 flow. Second operand 3 states and 602 transitions. [2023-08-31 21:25:31,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 82 transitions, 392 flow [2023-08-31 21:25:31,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 82 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:31,296 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 229 flow [2023-08-31 21:25:31,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-31 21:25:31,298 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2023-08-31 21:25:31,298 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 229 flow [2023-08-31 21:25:31,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:31,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:25:31,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash -684315748, now seen corresponding path program 1 times [2023-08-31 21:25:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068642348] [2023-08-31 21:25:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068642348] [2023-08-31 21:25:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068642348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479855549] [2023-08-31 21:25:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:31,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 377 [2023-08-31 21:25:31,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-08-31 21:25:31,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 377 [2023-08-31 21:25:31,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,446 INFO L130 PetriNetUnfolder]: 411/1172 cut-off events. [2023-08-31 21:25:31,446 INFO L131 PetriNetUnfolder]: For 390/418 co-relation queries the response was YES. [2023-08-31 21:25:31,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1172 events. 411/1172 cut-off events. For 390/418 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7153 event pairs, 159 based on Foata normal form. 3/1073 useless extension candidates. Maximal degree in co-relation 2802. Up to 609 conditions per place. [2023-08-31 21:25:31,450 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 66 selfloop transitions, 5 changer transitions 2/91 dead transitions. [2023-08-31 21:25:31,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 91 transitions, 457 flow [2023-08-31 21:25:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2023-08-31 21:25:31,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5411140583554377 [2023-08-31 21:25:31,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2023-08-31 21:25:31,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2023-08-31 21:25:31,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2023-08-31 21:25:31,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 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) [2023-08-31 21:25:31,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,455 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 229 flow. Second operand 3 states and 612 transitions. [2023-08-31 21:25:31,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 91 transitions, 457 flow [2023-08-31 21:25:31,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:31,457 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 260 flow [2023-08-31 21:25:31,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2023-08-31 21:25:31,459 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-31 21:25:31,459 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 260 flow [2023-08-31 21:25:31,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-08-31 21:25:31,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:25:31,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash -904642401, now seen corresponding path program 1 times [2023-08-31 21:25:31,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828414063] [2023-08-31 21:25:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828414063] [2023-08-31 21:25:31,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828414063] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:31,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681777029] [2023-08-31 21:25:31,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:31,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:31,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-31 21:25:31,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:31,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-31 21:25:31,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,594 INFO L130 PetriNetUnfolder]: 344/1022 cut-off events. [2023-08-31 21:25:31,594 INFO L131 PetriNetUnfolder]: For 405/452 co-relation queries the response was YES. [2023-08-31 21:25:31,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 1022 events. 344/1022 cut-off events. For 405/452 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6149 event pairs, 226 based on Foata normal form. 23/965 useless extension candidates. Maximal degree in co-relation 2506. Up to 725 conditions per place. [2023-08-31 21:25:31,597 INFO L137 encePairwiseOnDemand]: 374/377 looper letters, 49 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2023-08-31 21:25:31,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 390 flow [2023-08-31 21:25:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 589 transitions. [2023-08-31 21:25:31,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207780725022104 [2023-08-31 21:25:31,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 589 transitions. [2023-08-31 21:25:31,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 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) [2023-08-31 21:25:31,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,602 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 260 flow. Second operand 3 states and 589 transitions. [2023-08-31 21:25:31,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 390 flow [2023-08-31 21:25:31,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 76 transitions, 376 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:31,604 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 250 flow [2023-08-31 21:25:31,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2023-08-31 21:25:31,605 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-31 21:25:31,605 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 250 flow [2023-08-31 21:25:31,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:31,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:25:31,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,607 INFO L85 PathProgramCache]: Analyzing trace with hash -258938913, now seen corresponding path program 1 times [2023-08-31 21:25:31,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799666240] [2023-08-31 21:25:31,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799666240] [2023-08-31 21:25:31,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799666240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:25:31,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340700747] [2023-08-31 21:25:31,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:25:31,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:25:31,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:25:31,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 377 [2023-08-31 21:25:31,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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) [2023-08-31 21:25:31,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 377 [2023-08-31 21:25:31,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,864 INFO L130 PetriNetUnfolder]: 126/461 cut-off events. [2023-08-31 21:25:31,864 INFO L131 PetriNetUnfolder]: For 128/133 co-relation queries the response was YES. [2023-08-31 21:25:31,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 461 events. 126/461 cut-off events. For 128/133 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2112 event pairs, 38 based on Foata normal form. 10/433 useless extension candidates. Maximal degree in co-relation 1101. Up to 200 conditions per place. [2023-08-31 21:25:31,866 INFO L137 encePairwiseOnDemand]: 368/377 looper letters, 49 selfloop transitions, 9 changer transitions 10/86 dead transitions. [2023-08-31 21:25:31,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 432 flow [2023-08-31 21:25:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 21:25:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 21:25:31,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 777 transitions. [2023-08-31 21:25:31,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152519893899205 [2023-08-31 21:25:31,868 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 777 transitions. [2023-08-31 21:25:31,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 777 transitions. [2023-08-31 21:25:31,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 777 transitions. [2023-08-31 21:25:31,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 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) [2023-08-31 21:25:31,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:31,883 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:31,884 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 250 flow. Second operand 4 states and 777 transitions. [2023-08-31 21:25:31,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 432 flow [2023-08-31 21:25:31,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 86 transitions, 408 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-31 21:25:31,885 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 214 flow [2023-08-31 21:25:31,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2023-08-31 21:25:31,886 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2023-08-31 21:25:31,886 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 214 flow [2023-08-31 21:25:31,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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) [2023-08-31 21:25:31,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,887 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] [2023-08-31 21:25:31,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:25:31,887 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1666647957, now seen corresponding path program 1 times [2023-08-31 21:25:31,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90541558] [2023-08-31 21:25:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:31,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:31,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90541558] [2023-08-31 21:25:31,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90541558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:31,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:31,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:31,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17598295] [2023-08-31 21:25:31,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:31,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:31,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:31,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:31,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 377 [2023-08-31 21:25:31,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:31,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:31,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 377 [2023-08-31 21:25:31,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:31,983 INFO L130 PetriNetUnfolder]: 153/475 cut-off events. [2023-08-31 21:25:31,983 INFO L131 PetriNetUnfolder]: For 187/188 co-relation queries the response was YES. [2023-08-31 21:25:31,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 475 events. 153/475 cut-off events. For 187/188 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2032 event pairs, 88 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 1193. Up to 300 conditions per place. [2023-08-31 21:25:31,984 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 42 selfloop transitions, 6 changer transitions 17/78 dead transitions. [2023-08-31 21:25:31,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 78 transitions, 402 flow [2023-08-31 21:25:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-31 21:25:31,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2023-08-31 21:25:31,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-31 21:25:31,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-31 21:25:31,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:31,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-31 21:25:31,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2023-08-31 21:25:31,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:31,989 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 214 flow. Second operand 3 states and 598 transitions. [2023-08-31 21:25:31,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 78 transitions, 402 flow [2023-08-31 21:25:31,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 78 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:31,991 INFO L231 Difference]: Finished difference. Result has 65 places, 53 transitions, 217 flow [2023-08-31 21:25:31,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2023-08-31 21:25:31,991 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-31 21:25:31,991 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 217 flow [2023-08-31 21:25:31,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2023-08-31 21:25:31,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:31,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:31,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:25:31,992 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:31,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:31,993 INFO L85 PathProgramCache]: Analyzing trace with hash 42359985, now seen corresponding path program 1 times [2023-08-31 21:25:31,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:31,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813681327] [2023-08-31 21:25:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:31,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:32,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813681327] [2023-08-31 21:25:32,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813681327] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:32,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:32,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:25:32,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832610062] [2023-08-31 21:25:32,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:25:32,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:25:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:25:32,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 377 [2023-08-31 21:25:32,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 186.2) internal successors, (931), 5 states have internal predecessors, (931), 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) [2023-08-31 21:25:32,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:32,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 377 [2023-08-31 21:25:32,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:32,284 INFO L130 PetriNetUnfolder]: 67/275 cut-off events. [2023-08-31 21:25:32,284 INFO L131 PetriNetUnfolder]: For 267/268 co-relation queries the response was YES. [2023-08-31 21:25:32,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 275 events. 67/275 cut-off events. For 267/268 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1019 event pairs, 29 based on Foata normal form. 4/274 useless extension candidates. Maximal degree in co-relation 747. Up to 113 conditions per place. [2023-08-31 21:25:32,285 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 35 selfloop transitions, 7 changer transitions 6/65 dead transitions. [2023-08-31 21:25:32,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 367 flow [2023-08-31 21:25:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 21:25:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 21:25:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 769 transitions. [2023-08-31 21:25:32,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099469496021221 [2023-08-31 21:25:32,287 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 769 transitions. [2023-08-31 21:25:32,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 769 transitions. [2023-08-31 21:25:32,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:32,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 769 transitions. [2023-08-31 21:25:32,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 192.25) internal successors, (769), 4 states have internal predecessors, (769), 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) [2023-08-31 21:25:32,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:32,290 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:32,290 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 217 flow. Second operand 4 states and 769 transitions. [2023-08-31 21:25:32,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 367 flow [2023-08-31 21:25:32,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 342 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-31 21:25:32,292 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 211 flow [2023-08-31 21:25:32,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2023-08-31 21:25:32,293 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-31 21:25:32,293 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 211 flow [2023-08-31 21:25:32,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.2) internal successors, (931), 5 states have internal predecessors, (931), 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) [2023-08-31 21:25:32,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:32,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:32,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:25:32,294 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:32,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash -954223597, now seen corresponding path program 2 times [2023-08-31 21:25:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:32,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108144490] [2023-08-31 21:25:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:32,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:32,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108144490] [2023-08-31 21:25:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108144490] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:32,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:25:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743953999] [2023-08-31 21:25:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:32,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:32,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:32,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:32,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 377 [2023-08-31 21:25:32,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-08-31 21:25:32,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:32,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 377 [2023-08-31 21:25:32,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:32,441 INFO L130 PetriNetUnfolder]: 103/394 cut-off events. [2023-08-31 21:25:32,442 INFO L131 PetriNetUnfolder]: For 263/273 co-relation queries the response was YES. [2023-08-31 21:25:32,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 394 events. 103/394 cut-off events. For 263/273 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1801 event pairs, 26 based on Foata normal form. 11/399 useless extension candidates. Maximal degree in co-relation 1082. Up to 153 conditions per place. [2023-08-31 21:25:32,443 INFO L137 encePairwiseOnDemand]: 368/377 looper letters, 59 selfloop transitions, 10 changer transitions 1/86 dead transitions. [2023-08-31 21:25:32,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 488 flow [2023-08-31 21:25:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2023-08-31 21:25:32,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5349248452696729 [2023-08-31 21:25:32,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 605 transitions. [2023-08-31 21:25:32,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 605 transitions. [2023-08-31 21:25:32,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:32,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 605 transitions. [2023-08-31 21:25:32,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 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) [2023-08-31 21:25:32,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:32,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 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) [2023-08-31 21:25:32,448 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 211 flow. Second operand 3 states and 605 transitions. [2023-08-31 21:25:32,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 488 flow [2023-08-31 21:25:32,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:32,449 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 298 flow [2023-08-31 21:25:32,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2023-08-31 21:25:32,450 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-31 21:25:32,450 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 298 flow [2023-08-31 21:25:32,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-08-31 21:25:32,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:32,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:32,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:25:32,451 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 21:25:32,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:32,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1974478611, now seen corresponding path program 3 times [2023-08-31 21:25:32,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:32,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554892752] [2023-08-31 21:25:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:32,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:25:32,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:32,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554892752] [2023-08-31 21:25:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554892752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:32,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:32,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:25:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667153516] [2023-08-31 21:25:32,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:32,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:25:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:32,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:25:32,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:25:32,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 377 [2023-08-31 21:25:32,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2023-08-31 21:25:32,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:32,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 377 [2023-08-31 21:25:32,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:32,705 INFO L130 PetriNetUnfolder]: 29/174 cut-off events. [2023-08-31 21:25:32,705 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-08-31 21:25:32,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 174 events. 29/174 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 538 event pairs, 6 based on Foata normal form. 14/187 useless extension candidates. Maximal degree in co-relation 465. Up to 104 conditions per place. [2023-08-31 21:25:32,706 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-31 21:25:32,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 380 flow [2023-08-31 21:25:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 21:25:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 21:25:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 763 transitions. [2023-08-31 21:25:32,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059681697612732 [2023-08-31 21:25:32,708 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 763 transitions. [2023-08-31 21:25:32,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 763 transitions. [2023-08-31 21:25:32,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:32,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 763 transitions. [2023-08-31 21:25:32,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 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) [2023-08-31 21:25:32,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:32,711 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 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) [2023-08-31 21:25:32,711 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 298 flow. Second operand 4 states and 763 transitions. [2023-08-31 21:25:32,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 380 flow [2023-08-31 21:25:32,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 338 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-31 21:25:32,713 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-08-31 21:25:32,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-08-31 21:25:32,713 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2023-08-31 21:25:32,713 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-08-31 21:25:32,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2023-08-31 21:25:32,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-31 21:25:32,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-31 21:25:32,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-31 21:25:32,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:25:32,718 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:32,721 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:25:32,721 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:25:32,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:25:32 BasicIcfg [2023-08-31 21:25:32,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:25:32,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:25:32,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:25:32,723 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:25:32,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:25" (3/4) ... [2023-08-31 21:25:32,725 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:25:32,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 21:25:32,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-31 21:25:32,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 21:25:32,732 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:25:32,732 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:25:32,762 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:25:32,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:25:32,763 INFO L158 Benchmark]: Toolchain (without parser) took 7594.44ms. Allocated memory was 96.5MB in the beginning and 178.3MB in the end (delta: 81.8MB). Free memory was 72.7MB in the beginning and 73.8MB in the end (delta: -1.1MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,763 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:25:32,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.87ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 51.7MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.15ms. Allocated memory is still 96.5MB. Free memory was 51.7MB in the beginning and 76.6MB in the end (delta: -24.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,764 INFO L158 Benchmark]: Boogie Preprocessor took 41.69ms. Allocated memory is still 96.5MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:25:32,764 INFO L158 Benchmark]: RCFGBuilder took 371.93ms. Allocated memory is still 96.5MB. Free memory was 74.9MB in the beginning and 56.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,764 INFO L158 Benchmark]: TraceAbstraction took 6726.31ms. Allocated memory was 96.5MB in the beginning and 178.3MB in the end (delta: 81.8MB). Free memory was 55.1MB in the beginning and 76.9MB in the end (delta: -21.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,764 INFO L158 Benchmark]: Witness Printer took 39.51ms. Allocated memory is still 178.3MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:25:32,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.87ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 51.7MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.15ms. Allocated memory is still 96.5MB. Free memory was 51.7MB in the beginning and 76.6MB in the end (delta: -24.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.69ms. Allocated memory is still 96.5MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.93ms. Allocated memory is still 96.5MB. Free memory was 74.9MB in the beginning and 56.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6726.31ms. Allocated memory was 96.5MB in the beginning and 178.3MB in the end (delta: 81.8MB). Free memory was 55.1MB in the beginning and 76.9MB in the end (delta: -21.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Witness Printer took 39.51ms. Allocated memory is still 178.3MB. Free memory was 76.9MB in the beginning and 73.8MB 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: 3.6s, 196 PlacesBefore, 57 PlacesAfterwards, 200 TransitionsBefore, 55 TransitionsAfterwards, 12180 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 6 ChoiceCompositions, 175 TotalNumberOfCompositions, 32354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15586, independent: 14897, independent conditional: 0, independent unconditional: 14897, dependent: 689, dependent conditional: 0, dependent unconditional: 689, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6730, independent: 6629, independent conditional: 0, independent unconditional: 6629, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15586, independent: 8268, independent conditional: 0, independent unconditional: 8268, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 6730, unknown conditional: 0, unknown unconditional: 6730] , Statistics on independence cache: Total cache size (in pairs): 445, Positive cache size: 396, Positive conditional cache size: 0, Positive unconditional cache size: 396, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 277 locations, 14 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: 6.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1683 IncrementalHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 83 mSDtfsCounter, 1683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=13, InterpolantAutomatonStates: 45, 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, 0.7s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 1031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:25:32,789 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