./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.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/06-symbeq_11-equ_nr.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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --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 20:06:26,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:06:26,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:06:26,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:06:26,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:06:26,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:06:26,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:06:26,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:06:26,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:06:26,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:06:26,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:06:26,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:06:26,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:06:26,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:06:26,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:06:26,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:06:26,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:06:26,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:06:26,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:06:26,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:06:26,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:06:26,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:06:26,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:06:26,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:06:26,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:06:26,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:06:26,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:06:26,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:06:26,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:06:26,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:06:26,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:06:26,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:06:26,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:06:26,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:06:26,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:06:26,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:06:26,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:06:26,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:06:26,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:06:26,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:06:26,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:06:26,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:06:26,883 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:06:26,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:06:26,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:06:26,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:06:26,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:06:26,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:06:26,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:06:26,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:06:26,887 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:06:26,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:06:26,888 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:06:26,888 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:06:26,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:06:26,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:06:26,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:06:26,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:06:26,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:06:26,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:06:26,889 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:06:26,890 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:06:26,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:06:26,890 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:06:26,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:06:26,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:06:26,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:06:26,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:06:26,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:26,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:06:26,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:06:26,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:06:26,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:06:26,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:06:26,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:06:26,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:06:26,893 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:06:26,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:06:26,893 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:06:26,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:06:27,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:06:27,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:06:27,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:06:27,232 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:06:27,232 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:06:27,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-31 20:06:28,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:06:28,787 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:06:28,788 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-08-31 20:06:28,799 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0114257f5/c4b9972fe447411982b7cee4403b3efa/FLAG3ea177cc5 [2023-08-31 20:06:28,814 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0114257f5/c4b9972fe447411982b7cee4403b3efa [2023-08-31 20:06:28,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:06:28,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:06:28,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:28,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:06:28,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:06:28,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:28" (1/1) ... [2023-08-31 20:06:28,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e4940f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:28, skipping insertion in model container [2023-08-31 20:06:28,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:28" (1/1) ... [2023-08-31 20:06:28,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:06:28,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:06:29,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:29,282 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:06:29,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:29,442 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:06:29,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29 WrapperNode [2023-08-31 20:06:29,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:29,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:29,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:06:29,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:06:29,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,485 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2023-08-31 20:06:29,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:29,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:06:29,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:06:29,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:06:29,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:06:29,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:06:29,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:06:29,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:06:29,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (1/1) ... [2023-08-31 20:06:29,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:29,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:29,578 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 20:06:29,594 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 20:06:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:06:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:06:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:06:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:06:29,622 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 20:06:29,801 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:06:29,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:06:29,955 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:06:29,961 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:06:29,961 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:06:29,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:29 BoogieIcfgContainer [2023-08-31 20:06:29,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:06:29,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:06:29,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:06:29,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:06:29,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:06:28" (1/3) ... [2023-08-31 20:06:29,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ab5f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:29, skipping insertion in model container [2023-08-31 20:06:29,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:29" (2/3) ... [2023-08-31 20:06:29,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ab5f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:29, skipping insertion in model container [2023-08-31 20:06:29,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:29" (3/3) ... [2023-08-31 20:06:29,969 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-08-31 20:06:29,976 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:06:29,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:06:29,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-31 20:06:29,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:06:30,034 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:06:30,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 183 flow [2023-08-31 20:06:30,096 INFO L130 PetriNetUnfolder]: 1/90 cut-off events. [2023-08-31 20:06:30,097 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:30,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-31 20:06:30,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 183 flow [2023-08-31 20:06:30,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 86 transitions, 175 flow [2023-08-31 20:06:30,106 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:06:30,117 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-31 20:06:30,123 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 86 transitions, 175 flow [2023-08-31 20:06:30,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 175 flow [2023-08-31 20:06:30,171 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-08-31 20:06:30,171 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:30,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-31 20:06:30,178 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-08-31 20:06:34,350 INFO L134 LiptonReduction]: Checked pairs total: 2736 [2023-08-31 20:06:34,350 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-31 20:06:34,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:06:34,369 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;@3de61d32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:06:34,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 20:06:34,373 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-31 20:06:34,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:34,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:34,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:34,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:34,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -32859920, now seen corresponding path program 1 times [2023-08-31 20:06:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636347088] [2023-08-31 20:06:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:35,053 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 20:06:35,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:35,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636347088] [2023-08-31 20:06:35,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636347088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:35,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:35,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:35,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695626750] [2023-08-31 20:06:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:35,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:35,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:35,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 161 [2023-08-31 20:06:35,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 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 20:06:35,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:35,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 161 [2023-08-31 20:06:35,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:35,350 INFO L130 PetriNetUnfolder]: 72/186 cut-off events. [2023-08-31 20:06:35,350 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:35,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 186 events. 72/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 743 event pairs, 19 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 348. Up to 117 conditions per place. [2023-08-31 20:06:35,355 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 20 selfloop transitions, 22 changer transitions 4/49 dead transitions. [2023-08-31 20:06:35,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 49 transitions, 193 flow [2023-08-31 20:06:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2023-08-31 20:06:35,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144927536231884 [2023-08-31 20:06:35,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2023-08-31 20:06:35,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2023-08-31 20:06:35,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:35,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2023-08-31 20:06:35,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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 20:06:35,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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 20:06:35,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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 20:06:35,385 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 497 transitions. [2023-08-31 20:06:35,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 49 transitions, 193 flow [2023-08-31 20:06:35,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 49 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:35,389 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-08-31 20:06:35,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-08-31 20:06:35,405 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-08-31 20:06:35,406 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-08-31 20:06:35,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 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 20:06:35,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:35,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:35,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:06:35,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:35,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1414066238, now seen corresponding path program 1 times [2023-08-31 20:06:35,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:35,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947496196] [2023-08-31 20:06:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:35,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:35,649 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 20:06:35,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:35,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947496196] [2023-08-31 20:06:35,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947496196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:35,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:35,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:35,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547186211] [2023-08-31 20:06:35,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:35,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:35,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:35,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:35,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:35,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 161 [2023-08-31 20:06:35,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 20:06:35,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:35,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 161 [2023-08-31 20:06:35,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:35,846 INFO L130 PetriNetUnfolder]: 113/268 cut-off events. [2023-08-31 20:06:35,847 INFO L131 PetriNetUnfolder]: For 102/108 co-relation queries the response was YES. [2023-08-31 20:06:35,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 113/268 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1138 event pairs, 14 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 782. Up to 166 conditions per place. [2023-08-31 20:06:35,850 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 40 selfloop transitions, 29 changer transitions 11/84 dead transitions. [2023-08-31 20:06:35,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 532 flow [2023-08-31 20:06:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2023-08-31 20:06:35,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062111801242236 [2023-08-31 20:06:35,853 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 489 transitions. [2023-08-31 20:06:35,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 489 transitions. [2023-08-31 20:06:35,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:35,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 489 transitions. [2023-08-31 20:06:35,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 20:06:35,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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 20:06:35,858 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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 20:06:35,858 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 489 transitions. [2023-08-31 20:06:35,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 532 flow [2023-08-31 20:06:35,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:35,863 INFO L231 Difference]: Finished difference. Result has 43 places, 65 transitions, 446 flow [2023-08-31 20:06:35,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=43, PETRI_TRANSITIONS=65} [2023-08-31 20:06:35,864 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-31 20:06:35,864 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 65 transitions, 446 flow [2023-08-31 20:06:35,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 20:06:35,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:35,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:35,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:06:35,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:35,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash -785837523, now seen corresponding path program 1 times [2023-08-31 20:06:35,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:35,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134146487] [2023-08-31 20:06:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:35,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:36,675 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 20:06:36,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:36,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134146487] [2023-08-31 20:06:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134146487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:36,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:36,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:36,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168476257] [2023-08-31 20:06:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:36,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:36,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:36,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:36,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 65 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:36,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:36,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:36,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:37,099 INFO L130 PetriNetUnfolder]: 148/371 cut-off events. [2023-08-31 20:06:37,100 INFO L131 PetriNetUnfolder]: For 424/426 co-relation queries the response was YES. [2023-08-31 20:06:37,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 371 events. 148/371 cut-off events. For 424/426 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1864 event pairs, 8 based on Foata normal form. 10/381 useless extension candidates. Maximal degree in co-relation 1458. Up to 136 conditions per place. [2023-08-31 20:06:37,108 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 84 selfloop transitions, 34 changer transitions 13/135 dead transitions. [2023-08-31 20:06:37,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 135 transitions, 1186 flow [2023-08-31 20:06:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 697 transitions. [2023-08-31 20:06:37,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4329192546583851 [2023-08-31 20:06:37,111 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 697 transitions. [2023-08-31 20:06:37,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 697 transitions. [2023-08-31 20:06:37,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:37,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 697 transitions. [2023-08-31 20:06:37,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.7) internal successors, (697), 10 states have internal predecessors, (697), 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 20:06:37,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:37,118 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:37,119 INFO L175 Difference]: Start difference. First operand has 43 places, 65 transitions, 446 flow. Second operand 10 states and 697 transitions. [2023-08-31 20:06:37,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 135 transitions, 1186 flow [2023-08-31 20:06:37,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 1150 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:37,131 INFO L231 Difference]: Finished difference. Result has 58 places, 87 transitions, 722 flow [2023-08-31 20:06:37,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=722, PETRI_PLACES=58, PETRI_TRANSITIONS=87} [2023-08-31 20:06:37,132 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2023-08-31 20:06:37,135 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 87 transitions, 722 flow [2023-08-31 20:06:37,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:37,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:37,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:37,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:06:37,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:37,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash 324390159, now seen corresponding path program 2 times [2023-08-31 20:06:37,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:37,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262737837] [2023-08-31 20:06:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:37,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:38,079 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 20:06:38,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:38,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262737837] [2023-08-31 20:06:38,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262737837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:38,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:38,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:38,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285984255] [2023-08-31 20:06:38,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:38,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:38,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:38,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:38,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:38,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 87 transitions, 722 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:38,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:38,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:38,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:38,536 INFO L130 PetriNetUnfolder]: 155/386 cut-off events. [2023-08-31 20:06:38,537 INFO L131 PetriNetUnfolder]: For 988/991 co-relation queries the response was YES. [2023-08-31 20:06:38,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 386 events. 155/386 cut-off events. For 988/991 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1955 event pairs, 15 based on Foata normal form. 6/391 useless extension candidates. Maximal degree in co-relation 1835. Up to 128 conditions per place. [2023-08-31 20:06:38,540 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 58 selfloop transitions, 61 changer transitions 35/158 dead transitions. [2023-08-31 20:06:38,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 1572 flow [2023-08-31 20:06:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:06:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:06:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 776 transitions. [2023-08-31 20:06:38,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43817052512704685 [2023-08-31 20:06:38,546 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 776 transitions. [2023-08-31 20:06:38,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 776 transitions. [2023-08-31 20:06:38,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:38,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 776 transitions. [2023-08-31 20:06:38,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.54545454545455) internal successors, (776), 11 states have internal predecessors, (776), 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 20:06:38,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:38,555 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:38,555 INFO L175 Difference]: Start difference. First operand has 58 places, 87 transitions, 722 flow. Second operand 11 states and 776 transitions. [2023-08-31 20:06:38,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 1572 flow [2023-08-31 20:06:38,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 1571 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:38,565 INFO L231 Difference]: Finished difference. Result has 72 places, 96 transitions, 1012 flow [2023-08-31 20:06:38,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1012, PETRI_PLACES=72, PETRI_TRANSITIONS=96} [2023-08-31 20:06:38,566 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 48 predicate places. [2023-08-31 20:06:38,567 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 96 transitions, 1012 flow [2023-08-31 20:06:38,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:38,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:38,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:38,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:06:38,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:38,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1753622701, now seen corresponding path program 1 times [2023-08-31 20:06:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:38,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223726221] [2023-08-31 20:06:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:38,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:39,056 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 20:06:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223726221] [2023-08-31 20:06:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223726221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235376701] [2023-08-31 20:06:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:39,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:39,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 96 transitions, 1012 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:39,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:39,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:39,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:39,638 INFO L130 PetriNetUnfolder]: 210/525 cut-off events. [2023-08-31 20:06:39,639 INFO L131 PetriNetUnfolder]: For 2348/2360 co-relation queries the response was YES. [2023-08-31 20:06:39,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 525 events. 210/525 cut-off events. For 2348/2360 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3003 event pairs, 9 based on Foata normal form. 10/534 useless extension candidates. Maximal degree in co-relation 3035. Up to 182 conditions per place. [2023-08-31 20:06:39,644 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 126 selfloop transitions, 40 changer transitions 45/216 dead transitions. [2023-08-31 20:06:39,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 216 transitions, 2673 flow [2023-08-31 20:06:39,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:06:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:06:39,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 781 transitions. [2023-08-31 20:06:39,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4409937888198758 [2023-08-31 20:06:39,647 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 781 transitions. [2023-08-31 20:06:39,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 781 transitions. [2023-08-31 20:06:39,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:39,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 781 transitions. [2023-08-31 20:06:39,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 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 20:06:39,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:39,653 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:39,653 INFO L175 Difference]: Start difference. First operand has 72 places, 96 transitions, 1012 flow. Second operand 11 states and 781 transitions. [2023-08-31 20:06:39,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 216 transitions, 2673 flow [2023-08-31 20:06:39,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 216 transitions, 2624 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-31 20:06:39,670 INFO L231 Difference]: Finished difference. Result has 82 places, 118 transitions, 1377 flow [2023-08-31 20:06:39,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1377, PETRI_PLACES=82, PETRI_TRANSITIONS=118} [2023-08-31 20:06:39,671 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 58 predicate places. [2023-08-31 20:06:39,671 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 118 transitions, 1377 flow [2023-08-31 20:06:39,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:39,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:39,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:39,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:06:39,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:39,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2051401235, now seen corresponding path program 2 times [2023-08-31 20:06:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:39,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777900174] [2023-08-31 20:06:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:40,112 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 20:06:40,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777900174] [2023-08-31 20:06:40,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777900174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:40,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:40,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:40,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250293080] [2023-08-31 20:06:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:40,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:40,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:40,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:40,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:40,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 118 transitions, 1377 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:40,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:40,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:40,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:40,600 INFO L130 PetriNetUnfolder]: 156/425 cut-off events. [2023-08-31 20:06:40,601 INFO L131 PetriNetUnfolder]: For 2628/2639 co-relation queries the response was YES. [2023-08-31 20:06:40,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2797 conditions, 425 events. 156/425 cut-off events. For 2628/2639 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2383 event pairs, 6 based on Foata normal form. 14/439 useless extension candidates. Maximal degree in co-relation 2759. Up to 156 conditions per place. [2023-08-31 20:06:40,606 INFO L137 encePairwiseOnDemand]: 151/161 looper letters, 128 selfloop transitions, 38 changer transitions 14/185 dead transitions. [2023-08-31 20:06:40,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 185 transitions, 2550 flow [2023-08-31 20:06:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:40,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 698 transitions. [2023-08-31 20:06:40,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335403726708075 [2023-08-31 20:06:40,609 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 698 transitions. [2023-08-31 20:06:40,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 698 transitions. [2023-08-31 20:06:40,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:40,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 698 transitions. [2023-08-31 20:06:40,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.8) internal successors, (698), 10 states have internal predecessors, (698), 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 20:06:40,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:40,614 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:40,614 INFO L175 Difference]: Start difference. First operand has 82 places, 118 transitions, 1377 flow. Second operand 10 states and 698 transitions. [2023-08-31 20:06:40,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 185 transitions, 2550 flow [2023-08-31 20:06:40,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 185 transitions, 2524 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:06:40,631 INFO L231 Difference]: Finished difference. Result has 93 places, 129 transitions, 1630 flow [2023-08-31 20:06:40,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1630, PETRI_PLACES=93, PETRI_TRANSITIONS=129} [2023-08-31 20:06:40,632 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 69 predicate places. [2023-08-31 20:06:40,633 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 129 transitions, 1630 flow [2023-08-31 20:06:40,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:40,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:40,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:06:40,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:40,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 371757849, now seen corresponding path program 3 times [2023-08-31 20:06:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:40,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179265897] [2023-08-31 20:06:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:41,190 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 20:06:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:41,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179265897] [2023-08-31 20:06:41,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179265897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:41,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:41,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:41,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156417193] [2023-08-31 20:06:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:41,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:41,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:41,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:41,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 129 transitions, 1630 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:41,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:41,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:41,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:41,654 INFO L130 PetriNetUnfolder]: 187/536 cut-off events. [2023-08-31 20:06:41,655 INFO L131 PetriNetUnfolder]: For 4638/4645 co-relation queries the response was YES. [2023-08-31 20:06:41,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3864 conditions, 536 events. 187/536 cut-off events. For 4638/4645 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3391 event pairs, 16 based on Foata normal form. 11/547 useless extension candidates. Maximal degree in co-relation 3820. Up to 173 conditions per place. [2023-08-31 20:06:41,659 INFO L137 encePairwiseOnDemand]: 146/161 looper letters, 65 selfloop transitions, 50 changer transitions 80/201 dead transitions. [2023-08-31 20:06:41,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 201 transitions, 2984 flow [2023-08-31 20:06:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:06:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:06:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 777 transitions. [2023-08-31 20:06:41,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43873517786561267 [2023-08-31 20:06:41,662 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 777 transitions. [2023-08-31 20:06:41,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 777 transitions. [2023-08-31 20:06:41,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:41,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 777 transitions. [2023-08-31 20:06:41,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.63636363636364) internal successors, (777), 11 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 20:06:41,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:41,668 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:41,669 INFO L175 Difference]: Start difference. First operand has 93 places, 129 transitions, 1630 flow. Second operand 11 states and 777 transitions. [2023-08-31 20:06:41,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 201 transitions, 2984 flow [2023-08-31 20:06:41,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 201 transitions, 2825 flow, removed 52 selfloop flow, removed 5 redundant places. [2023-08-31 20:06:41,700 INFO L231 Difference]: Finished difference. Result has 102 places, 112 transitions, 1521 flow [2023-08-31 20:06:41,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1555, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1521, PETRI_PLACES=102, PETRI_TRANSITIONS=112} [2023-08-31 20:06:41,701 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-31 20:06:41,701 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 112 transitions, 1521 flow [2023-08-31 20:06:41,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:41,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:41,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:41,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:06:41,702 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:41,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:41,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1604110343, now seen corresponding path program 3 times [2023-08-31 20:06:41,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:41,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596123469] [2023-08-31 20:06:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:42,197 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 20:06:42,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:42,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596123469] [2023-08-31 20:06:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596123469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:42,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:42,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:42,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316315794] [2023-08-31 20:06:42,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:42,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:42,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:42,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:42,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:42,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:42,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 112 transitions, 1521 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:42,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:42,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:42,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:42,792 INFO L130 PetriNetUnfolder]: 114/342 cut-off events. [2023-08-31 20:06:42,792 INFO L131 PetriNetUnfolder]: For 3846/3852 co-relation queries the response was YES. [2023-08-31 20:06:42,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2634 conditions, 342 events. 114/342 cut-off events. For 3846/3852 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1883 event pairs, 10 based on Foata normal form. 14/356 useless extension candidates. Maximal degree in co-relation 2586. Up to 107 conditions per place. [2023-08-31 20:06:42,796 INFO L137 encePairwiseOnDemand]: 147/161 looper letters, 64 selfloop transitions, 34 changer transitions 63/167 dead transitions. [2023-08-31 20:06:42,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 167 transitions, 2680 flow [2023-08-31 20:06:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:06:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:06:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 770 transitions. [2023-08-31 20:06:42,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2023-08-31 20:06:42,799 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 770 transitions. [2023-08-31 20:06:42,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 770 transitions. [2023-08-31 20:06:42,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:42,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 770 transitions. [2023-08-31 20:06:42,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 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 20:06:42,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:42,805 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:42,805 INFO L175 Difference]: Start difference. First operand has 102 places, 112 transitions, 1521 flow. Second operand 11 states and 770 transitions. [2023-08-31 20:06:42,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 167 transitions, 2680 flow [2023-08-31 20:06:42,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 167 transitions, 2536 flow, removed 58 selfloop flow, removed 5 redundant places. [2023-08-31 20:06:42,825 INFO L231 Difference]: Finished difference. Result has 110 places, 89 transitions, 1233 flow [2023-08-31 20:06:42,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1414, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1233, PETRI_PLACES=110, PETRI_TRANSITIONS=89} [2023-08-31 20:06:42,828 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 86 predicate places. [2023-08-31 20:06:42,828 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 89 transitions, 1233 flow [2023-08-31 20:06:42,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:42,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:42,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:42,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:06:42,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:42,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1405280377, now seen corresponding path program 4 times [2023-08-31 20:06:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:42,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215595065] [2023-08-31 20:06:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:43,360 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 20:06:43,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215595065] [2023-08-31 20:06:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215595065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:43,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246909879] [2023-08-31 20:06:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:43,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:43,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:43,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:43,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:43,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 89 transitions, 1233 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:43,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:43,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:43,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:44,052 INFO L130 PetriNetUnfolder]: 67/229 cut-off events. [2023-08-31 20:06:44,053 INFO L131 PetriNetUnfolder]: For 3059/3063 co-relation queries the response was YES. [2023-08-31 20:06:44,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 229 events. 67/229 cut-off events. For 3059/3063 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1137 event pairs, 7 based on Foata normal form. 5/233 useless extension candidates. Maximal degree in co-relation 1783. Up to 61 conditions per place. [2023-08-31 20:06:44,055 INFO L137 encePairwiseOnDemand]: 147/161 looper letters, 47 selfloop transitions, 38 changer transitions 33/124 dead transitions. [2023-08-31 20:06:44,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 2005 flow [2023-08-31 20:06:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:06:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:06:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 764 transitions. [2023-08-31 20:06:44,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4313946922642575 [2023-08-31 20:06:44,059 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 764 transitions. [2023-08-31 20:06:44,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 764 transitions. [2023-08-31 20:06:44,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:44,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 764 transitions. [2023-08-31 20:06:44,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.45454545454545) internal successors, (764), 11 states have internal predecessors, (764), 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 20:06:44,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:44,064 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 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 20:06:44,064 INFO L175 Difference]: Start difference. First operand has 110 places, 89 transitions, 1233 flow. Second operand 11 states and 764 transitions. [2023-08-31 20:06:44,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 2005 flow [2023-08-31 20:06:44,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 124 transitions, 1777 flow, removed 41 selfloop flow, removed 17 redundant places. [2023-08-31 20:06:44,079 INFO L231 Difference]: Finished difference. Result has 102 places, 79 transitions, 1050 flow [2023-08-31 20:06:44,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1050, PETRI_PLACES=102, PETRI_TRANSITIONS=79} [2023-08-31 20:06:44,080 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-31 20:06:44,080 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 79 transitions, 1050 flow [2023-08-31 20:06:44,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:44,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:44,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:44,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:06:44,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:44,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1373690143, now seen corresponding path program 4 times [2023-08-31 20:06:44,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:44,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867947099] [2023-08-31 20:06:44,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:44,531 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 20:06:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867947099] [2023-08-31 20:06:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867947099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:44,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:44,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428224549] [2023-08-31 20:06:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:44,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:44,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:44,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:44,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:44,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 79 transitions, 1050 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:44,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:44,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:44,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:44,945 INFO L130 PetriNetUnfolder]: 73/229 cut-off events. [2023-08-31 20:06:44,945 INFO L131 PetriNetUnfolder]: For 2401/2411 co-relation queries the response was YES. [2023-08-31 20:06:44,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 229 events. 73/229 cut-off events. For 2401/2411 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1103 event pairs, 9 based on Foata normal form. 11/239 useless extension candidates. Maximal degree in co-relation 1686. Up to 67 conditions per place. [2023-08-31 20:06:44,948 INFO L137 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 32 changer transitions 16/125 dead transitions. [2023-08-31 20:06:44,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 1929 flow [2023-08-31 20:06:44,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:44,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 691 transitions. [2023-08-31 20:06:44,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291925465838509 [2023-08-31 20:06:44,951 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 691 transitions. [2023-08-31 20:06:44,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 691 transitions. [2023-08-31 20:06:44,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:44,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 691 transitions. [2023-08-31 20:06:44,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.1) internal successors, (691), 10 states have internal predecessors, (691), 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 20:06:44,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:44,956 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:44,956 INFO L175 Difference]: Start difference. First operand has 102 places, 79 transitions, 1050 flow. Second operand 10 states and 691 transitions. [2023-08-31 20:06:44,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 1929 flow [2023-08-31 20:06:44,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 125 transitions, 1809 flow, removed 10 selfloop flow, removed 11 redundant places. [2023-08-31 20:06:44,969 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 1231 flow [2023-08-31 20:06:44,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1231, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2023-08-31 20:06:44,970 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 77 predicate places. [2023-08-31 20:06:44,970 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 1231 flow [2023-08-31 20:06:44,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:44,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:44,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:44,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:06:44,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:44,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1336261357, now seen corresponding path program 5 times [2023-08-31 20:06:44,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:44,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748273838] [2023-08-31 20:06:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:44,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:45,301 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 20:06:45,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:45,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748273838] [2023-08-31 20:06:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748273838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:45,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694383373] [2023-08-31 20:06:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:45,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:45,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:45,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:45,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:45,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 1231 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:45,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:45,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:45,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:45,740 INFO L130 PetriNetUnfolder]: 52/187 cut-off events. [2023-08-31 20:06:45,741 INFO L131 PetriNetUnfolder]: For 2163/2170 co-relation queries the response was YES. [2023-08-31 20:06:45,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 187 events. 52/187 cut-off events. For 2163/2170 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 906 event pairs, 0 based on Foata normal form. 11/198 useless extension candidates. Maximal degree in co-relation 1437. Up to 58 conditions per place. [2023-08-31 20:06:45,743 INFO L137 encePairwiseOnDemand]: 149/161 looper letters, 43 selfloop transitions, 19 changer transitions 35/101 dead transitions. [2023-08-31 20:06:45,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 101 transitions, 1591 flow [2023-08-31 20:06:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 688 transitions. [2023-08-31 20:06:45,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42732919254658386 [2023-08-31 20:06:45,748 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 688 transitions. [2023-08-31 20:06:45,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 688 transitions. [2023-08-31 20:06:45,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:45,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 688 transitions. [2023-08-31 20:06:45,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 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 20:06:45,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:45,754 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:45,754 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 1231 flow. Second operand 10 states and 688 transitions. [2023-08-31 20:06:45,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 101 transitions, 1591 flow [2023-08-31 20:06:45,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 101 transitions, 1500 flow, removed 19 selfloop flow, removed 7 redundant places. [2023-08-31 20:06:45,779 INFO L231 Difference]: Finished difference. Result has 102 places, 60 transitions, 819 flow [2023-08-31 20:06:45,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=819, PETRI_PLACES=102, PETRI_TRANSITIONS=60} [2023-08-31 20:06:45,780 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 78 predicate places. [2023-08-31 20:06:45,780 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 60 transitions, 819 flow [2023-08-31 20:06:45,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:45,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:45,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:45,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:06:45,782 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:45,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1867861869, now seen corresponding path program 5 times [2023-08-31 20:06:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332973570] [2023-08-31 20:06:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:46,346 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 20:06:46,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:46,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332973570] [2023-08-31 20:06:46,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332973570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:46,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:46,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:06:46,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187048310] [2023-08-31 20:06:46,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:46,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:06:46,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:46,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:06:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:06:46,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 161 [2023-08-31 20:06:46,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 60 transitions, 819 flow. Second operand has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:46,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:46,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 161 [2023-08-31 20:06:46,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:46,685 INFO L130 PetriNetUnfolder]: 37/134 cut-off events. [2023-08-31 20:06:46,686 INFO L131 PetriNetUnfolder]: For 1698/1701 co-relation queries the response was YES. [2023-08-31 20:06:46,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 134 events. 37/134 cut-off events. For 1698/1701 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 560 event pairs, 0 based on Foata normal form. 13/147 useless extension candidates. Maximal degree in co-relation 1061. Up to 47 conditions per place. [2023-08-31 20:06:46,687 INFO L137 encePairwiseOnDemand]: 151/161 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2023-08-31 20:06:46,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 1363 flow [2023-08-31 20:06:46,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 679 transitions. [2023-08-31 20:06:46,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4217391304347826 [2023-08-31 20:06:46,689 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 679 transitions. [2023-08-31 20:06:46,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 679 transitions. [2023-08-31 20:06:46,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:46,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 679 transitions. [2023-08-31 20:06:46,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 67.9) internal successors, (679), 10 states have internal predecessors, (679), 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 20:06:46,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:46,697 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 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 20:06:46,697 INFO L175 Difference]: Start difference. First operand has 102 places, 60 transitions, 819 flow. Second operand 10 states and 679 transitions. [2023-08-31 20:06:46,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 86 transitions, 1363 flow [2023-08-31 20:06:46,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 86 transitions, 1002 flow, removed 30 selfloop flow, removed 34 redundant places. [2023-08-31 20:06:46,705 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-31 20:06:46,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-31 20:06:46,705 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 42 predicate places. [2023-08-31 20:06:46,706 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-31 20:06:46,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 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 20:06:46,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-31 20:06:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-31 20:06:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-31 20:06:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-31 20:06:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:06:46,710 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1] [2023-08-31 20:06:46,714 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:06:46,714 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:06:46,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:06:46 BasicIcfg [2023-08-31 20:06:46,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:06:46,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:06:46,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:06:46,718 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:06:46,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:29" (3/4) ... [2023-08-31 20:06:46,721 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:06:46,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:06:46,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-31 20:06:46,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 20:06:46,731 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:06:46,762 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:06:46,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:06:46,763 INFO L158 Benchmark]: Toolchain (without parser) took 17945.48ms. Allocated memory was 73.4MB in the beginning and 272.6MB in the end (delta: 199.2MB). Free memory was 49.4MB in the beginning and 141.3MB in the end (delta: -91.9MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,763 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:06:46,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.29ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 40.0MB in the end (delta: 9.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.84ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 37.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,764 INFO L158 Benchmark]: Boogie Preprocessor took 52.16ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,764 INFO L158 Benchmark]: RCFGBuilder took 424.44ms. Allocated memory is still 73.4MB. Free memory was 36.0MB in the beginning and 44.0MB in the end (delta: -8.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,764 INFO L158 Benchmark]: TraceAbstraction took 16753.42ms. Allocated memory was 73.4MB in the beginning and 272.6MB in the end (delta: 199.2MB). Free memory was 43.4MB in the beginning and 144.5MB in the end (delta: -101.1MB). Peak memory consumption was 98.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,765 INFO L158 Benchmark]: Witness Printer took 44.17ms. Allocated memory is still 272.6MB. Free memory was 144.5MB in the beginning and 141.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:06:46,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.29ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 40.0MB in the end (delta: 9.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.84ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 37.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.16ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.44ms. Allocated memory is still 73.4MB. Free memory was 36.0MB in the beginning and 44.0MB in the end (delta: -8.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 16753.42ms. Allocated memory was 73.4MB in the beginning and 272.6MB in the end (delta: 199.2MB). Free memory was 43.4MB in the beginning and 144.5MB in the end (delta: -101.1MB). Peak memory consumption was 98.1MB. Max. memory is 16.1GB. * Witness Printer took 44.17ms. Allocated memory is still 272.6MB. Free memory was 144.5MB in the beginning and 141.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 89 PlacesBefore, 24 PlacesAfterwards, 86 TransitionsBefore, 20 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 2736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 871, independent: 625, independent conditional: 0, independent unconditional: 625, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 278, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 871, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 278, unknown conditional: 0, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: 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, 105 locations, 4 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: 16.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2136 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1692 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4879 IncrementalHoareTripleChecker+Invalid, 5311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 33 mSDtfsCounter, 4879 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1630occurred in iteration=6, InterpolantAutomatonStates: 117, 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, 0.2s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 3305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:06:46,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE