./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/09-regions_06-ptra_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 e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:46:30,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:46:30,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:46:30,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:46:30,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:46:30,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:46:30,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:46:30,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:46:30,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:46:30,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:46:30,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:46:30,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:46:30,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:46:30,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:46:30,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:46:30,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:46:30,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:46:30,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:46:30,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:46:30,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:46:30,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:46:30,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:46:30,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:46:30,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:46:30,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:46:30,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:46:30,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:46:30,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:46:30,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:46:30,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:46:30,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:46:30,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:46:30,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:46:30,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:46:30,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:46:30,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:46:30,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:46:30,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:46:30,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:46:30,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:46:30,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:46:30,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:46:30,198 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:46:30,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:46:30,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:46:30,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:46:30,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:46:30,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:46:30,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:46:30,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:46:30,202 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:46:30,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:46:30,203 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:46:30,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:46:30,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:46:30,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:46:30,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:46:30,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:46:30,205 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:46:30,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:46:30,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:46:30,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:46:30,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:46:30,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:46:30,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:46:30,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:46:30,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:46:30,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:46:30,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:46:30,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:46:30,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:46:30,207 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:46:30,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:46:30,208 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:46:30,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:46:30,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:46:30,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:46:30,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:46:30,516 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:46:30,517 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:46:30,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i [2023-08-29 17:46:31,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:46:31,886 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:46:31,887 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i [2023-08-29 17:46:31,900 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca32e3fbe/684899ae5aef45dbae44a3373cf2973e/FLAGb96895206 [2023-08-29 17:46:31,915 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca32e3fbe/684899ae5aef45dbae44a3373cf2973e [2023-08-29 17:46:31,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:46:31,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:46:31,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:46:31,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:46:31,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:46:31,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:46:31" (1/1) ... [2023-08-29 17:46:31,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7d50e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:31, skipping insertion in model container [2023-08-29 17:46:31,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:46:31" (1/1) ... [2023-08-29 17:46:31,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:46:31,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:46:32,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:46:32,512 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:46:32,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:46:32,680 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:46:32,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32 WrapperNode [2023-08-29 17:46:32,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:46:32,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:46:32,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:46:32,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:46:32,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,765 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2023-08-29 17:46:32,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:46:32,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:46:32,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:46:32,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:46:32,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:46:32,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:46:32,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:46:32,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:46:32,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (1/1) ... [2023-08-29 17:46:32,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:46:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:46:32,877 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) [2023-08-29 17:46:32,895 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 [2023-08-29 17:46:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:46:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:46:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:46:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:46:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:46:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:46:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:46:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:46:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:46:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:46:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:46:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:46:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:46:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:46:32,914 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:46:33,109 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:46:33,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:46:33,535 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:46:33,543 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:46:33,543 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:46:33,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:46:33 BoogieIcfgContainer [2023-08-29 17:46:33,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:46:33,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:46:33,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:46:33,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:46:33,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:46:31" (1/3) ... [2023-08-29 17:46:33,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3425e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:46:33, skipping insertion in model container [2023-08-29 17:46:33,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:46:32" (2/3) ... [2023-08-29 17:46:33,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3425e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:46:33, skipping insertion in model container [2023-08-29 17:46:33,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:46:33" (3/3) ... [2023-08-29 17:46:33,552 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2023-08-29 17:46:33,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:46:33,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:46:33,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-29 17:46:33,566 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:46:33,687 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:46:33,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 237 transitions, 479 flow [2023-08-29 17:46:33,824 INFO L130 PetriNetUnfolder]: 0/236 cut-off events. [2023-08-29 17:46:33,825 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:46:33,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:46:33,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 237 transitions, 479 flow [2023-08-29 17:46:33,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 236 transitions, 475 flow [2023-08-29 17:46:33,838 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:46:33,853 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 236 transitions, 475 flow [2023-08-29 17:46:33,859 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 236 transitions, 475 flow [2023-08-29 17:46:33,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 236 transitions, 475 flow [2023-08-29 17:46:33,917 INFO L130 PetriNetUnfolder]: 0/236 cut-off events. [2023-08-29 17:46:33,917 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:46:33,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:46:33,922 INFO L119 LiptonReduction]: Number of co-enabled transitions 4554 [2023-08-29 17:46:52,354 WARN L222 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:11,678 WARN L222 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:22,259 WARN L222 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:42,699 WARN L222 SmtUtils]: Spent 16.48s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:49,813 WARN L222 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:48:09,048 WARN L222 SmtUtils]: Spent 19.23s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:48:16,715 WARN L222 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:49:10,796 WARN L222 SmtUtils]: Spent 53.98s on a formula simplification. DAG size of input: 331 DAG size of output: 327 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:49:54,211 WARN L222 SmtUtils]: Spent 43.41s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:51:13,604 WARN L222 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 331 DAG size of output: 327 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:51:57,789 WARN L222 SmtUtils]: Spent 44.18s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:51:57,799 INFO L134 LiptonReduction]: Checked pairs total: 36120 [2023-08-29 17:51:57,799 INFO L136 LiptonReduction]: Total number of compositions: 214 [2023-08-29 17:51:57,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:51:57,815 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;@4fcd334a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:51:57,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-29 17:51:57,817 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:51:57,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:51:57,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:57,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:51:57,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:57,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash 769, now seen corresponding path program 1 times [2023-08-29 17:51:57,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:57,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308935590] [2023-08-29 17:51:57,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:57,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308935590] [2023-08-29 17:51:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308935590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:51:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852052823] [2023-08-29 17:51:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:57,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:51:57,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:57,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:51:57,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:51:57,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 451 [2023-08-29 17:51:57,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 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) [2023-08-29 17:51:57,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:57,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 451 [2023-08-29 17:51:57,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:58,437 INFO L130 PetriNetUnfolder]: 98/458 cut-off events. [2023-08-29 17:51:58,438 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:51:58,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 458 events. 98/458 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2177 event pairs, 98 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 673. Up to 220 conditions per place. [2023-08-29 17:51:58,448 INFO L137 encePairwiseOnDemand]: 439/451 looper letters, 23 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 17:51:58,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 179 flow [2023-08-29 17:51:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:51:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:51:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2023-08-29 17:51:58,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5620842572062085 [2023-08-29 17:51:58,497 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2023-08-29 17:51:58,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2023-08-29 17:51:58,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:58,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2023-08-29 17:51:58,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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) [2023-08-29 17:51:58,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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) [2023-08-29 17:51:58,520 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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) [2023-08-29 17:51:58,522 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 507 transitions. [2023-08-29 17:51:58,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 179 flow [2023-08-29 17:51:58,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:51:58,530 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 17:51:58,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 17:51:58,535 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2023-08-29 17:51:58,535 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 17:51:58,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 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) [2023-08-29 17:51:58,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:58,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:51:58,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:51:58,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:58,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash 748433705, now seen corresponding path program 1 times [2023-08-29 17:51:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:58,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434869866] [2023-08-29 17:51:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:58,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:58,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434869866] [2023-08-29 17:51:58,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434869866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:58,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:58,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:51:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141524814] [2023-08-29 17:51:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:58,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:51:58,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:58,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:51:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:51:58,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 451 [2023-08-29 17:51:58,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-08-29 17:51:58,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:58,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 451 [2023-08-29 17:51:58,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:59,092 INFO L130 PetriNetUnfolder]: 120/512 cut-off events. [2023-08-29 17:51:59,092 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:51:59,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 512 events. 120/512 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2445 event pairs, 120 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 779. Up to 265 conditions per place. [2023-08-29 17:51:59,094 INFO L137 encePairwiseOnDemand]: 447/451 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 17:51:59,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2023-08-29 17:51:59,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:51:59,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:51:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2023-08-29 17:51:59,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50849963045085 [2023-08-29 17:51:59,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2023-08-29 17:51:59,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2023-08-29 17:51:59,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:59,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2023-08-29 17:51:59,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 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) [2023-08-29 17:51:59,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 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) [2023-08-29 17:51:59,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 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) [2023-08-29 17:51:59,103 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 688 transitions. [2023-08-29 17:51:59,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2023-08-29 17:51:59,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:51:59,105 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 17:51:59,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 17:51:59,106 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2023-08-29 17:51:59,107 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 17:51:59,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-08-29 17:51:59,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:59,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:59,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:51:59,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:59,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:59,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2100724888, now seen corresponding path program 1 times [2023-08-29 17:51:59,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:59,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456216033] [2023-08-29 17:51:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:59,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:59,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:59,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456216033] [2023-08-29 17:51:59,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456216033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:59,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:59,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:51:59,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193854737] [2023-08-29 17:51:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:59,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:51:59,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:51:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:51:59,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:52:00,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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) [2023-08-29 17:52:00,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:00,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:52:00,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:00,632 INFO L130 PetriNetUnfolder]: 495/1186 cut-off events. [2023-08-29 17:52:00,633 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:52:00,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1186 events. 495/1186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5646 event pairs, 380 based on Foata normal form. 0/1151 useless extension candidates. Maximal degree in co-relation 2230. Up to 950 conditions per place. [2023-08-29 17:52:00,638 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 74 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2023-08-29 17:52:00,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 478 flow [2023-08-29 17:52:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:52:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:52:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2023-08-29 17:52:00,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4360679970436068 [2023-08-29 17:52:00,642 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2023-08-29 17:52:00,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2023-08-29 17:52:00,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:00,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2023-08-29 17:52:00,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 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) [2023-08-29 17:52:00,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:52:00,673 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:52:00,673 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1180 transitions. [2023-08-29 17:52:00,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 478 flow [2023-08-29 17:52:00,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 126 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:00,676 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 17:52:00,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 17:52:00,677 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-29 17:52:00,677 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 17:52:00,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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) [2023-08-29 17:52:00,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:00,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:00,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:52:00,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:00,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:00,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1871749258, now seen corresponding path program 1 times [2023-08-29 17:52:00,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:00,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165258124] [2023-08-29 17:52:00,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:00,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:01,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:01,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165258124] [2023-08-29 17:52:01,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165258124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:01,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:01,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:52:01,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972861174] [2023-08-29 17:52:01,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:01,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:52:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:01,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:52:01,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:52:01,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 451 [2023-08-29 17:52:01,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2023-08-29 17:52:01,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:01,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 451 [2023-08-29 17:52:01,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:02,266 INFO L130 PetriNetUnfolder]: 743/1862 cut-off events. [2023-08-29 17:52:02,266 INFO L131 PetriNetUnfolder]: For 253/264 co-relation queries the response was YES. [2023-08-29 17:52:02,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1862 events. 743/1862 cut-off events. For 253/264 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10942 event pairs, 92 based on Foata normal form. 0/1797 useless extension candidates. Maximal degree in co-relation 4113. Up to 820 conditions per place. [2023-08-29 17:52:02,275 INFO L137 encePairwiseOnDemand]: 423/451 looper letters, 151 selfloop transitions, 77 changer transitions 0/258 dead transitions. [2023-08-29 17:52:02,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 258 transitions, 1206 flow [2023-08-29 17:52:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:52:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:52:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2023-08-29 17:52:02,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663710273466371 [2023-08-29 17:52:02,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2023-08-29 17:52:02,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2023-08-29 17:52:02,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:02,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2023-08-29 17:52:02,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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) [2023-08-29 17:52:02,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:52:02,288 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:52:02,288 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1262 transitions. [2023-08-29 17:52:02,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 258 transitions, 1206 flow [2023-08-29 17:52:02,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 258 transitions, 1206 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:02,296 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 17:52:02,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 17:52:02,296 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2023-08-29 17:52:02,297 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 17:52:02,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2023-08-29 17:52:02,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:02,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:02,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:52:02,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:02,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1855574645, now seen corresponding path program 1 times [2023-08-29 17:52:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:02,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793221823] [2023-08-29 17:52:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:03,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:03,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793221823] [2023-08-29 17:52:03,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793221823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:03,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:03,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624970652] [2023-08-29 17:52:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:03,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:03,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 451 [2023-08-29 17:52:03,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 175.2) internal successors, (1752), 10 states have internal predecessors, (1752), 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) [2023-08-29 17:52:03,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:03,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 451 [2023-08-29 17:52:03,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:05,132 INFO L130 PetriNetUnfolder]: 873/2101 cut-off events. [2023-08-29 17:52:05,132 INFO L131 PetriNetUnfolder]: For 1536/1545 co-relation queries the response was YES. [2023-08-29 17:52:05,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6278 conditions, 2101 events. 873/2101 cut-off events. For 1536/1545 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12062 event pairs, 325 based on Foata normal form. 0/2066 useless extension candidates. Maximal degree in co-relation 6265. Up to 1472 conditions per place. [2023-08-29 17:52:05,145 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 251 selfloop transitions, 64 changer transitions 2/347 dead transitions. [2023-08-29 17:52:05,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 347 transitions, 2363 flow [2023-08-29 17:52:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:52:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:52:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2814 transitions. [2023-08-29 17:52:05,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41596452328159644 [2023-08-29 17:52:05,153 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2814 transitions. [2023-08-29 17:52:05,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2814 transitions. [2023-08-29 17:52:05,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:05,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2814 transitions. [2023-08-29 17:52:05,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 187.6) internal successors, (2814), 15 states have internal predecessors, (2814), 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) [2023-08-29 17:52:05,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:52:05,172 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:52:05,172 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2814 transitions. [2023-08-29 17:52:05,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 347 transitions, 2363 flow [2023-08-29 17:52:05,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 347 transitions, 2345 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:05,190 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 17:52:05,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 17:52:05,193 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2023-08-29 17:52:05,193 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 17:52:05,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 175.2) internal successors, (1752), 10 states have internal predecessors, (1752), 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) [2023-08-29 17:52:05,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:05,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:52:05,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:05,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash -266251986, now seen corresponding path program 1 times [2023-08-29 17:52:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800821546] [2023-08-29 17:52:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:05,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800821546] [2023-08-29 17:52:05,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800821546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:05,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:05,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:05,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195907931] [2023-08-29 17:52:05,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:05,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:05,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:05,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:06,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:06,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:06,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:06,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:06,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:08,855 INFO L130 PetriNetUnfolder]: 946/2431 cut-off events. [2023-08-29 17:52:08,855 INFO L131 PetriNetUnfolder]: For 2347/2384 co-relation queries the response was YES. [2023-08-29 17:52:08,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7782 conditions, 2431 events. 946/2431 cut-off events. For 2347/2384 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 15814 event pairs, 117 based on Foata normal form. 20/2421 useless extension candidates. Maximal degree in co-relation 7763. Up to 730 conditions per place. [2023-08-29 17:52:08,875 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 288 selfloop transitions, 121 changer transitions 2/447 dead transitions. [2023-08-29 17:52:08,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 447 transitions, 3269 flow [2023-08-29 17:52:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:52:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:52:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2383 transitions. [2023-08-29 17:52:08,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44031781226903177 [2023-08-29 17:52:08,882 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2383 transitions. [2023-08-29 17:52:08,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2383 transitions. [2023-08-29 17:52:08,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:08,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2383 transitions. [2023-08-29 17:52:08,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.58333333333334) internal successors, (2383), 12 states have internal predecessors, (2383), 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) [2023-08-29 17:52:08,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 451.0) internal successors, (5863), 13 states have internal predecessors, (5863), 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) [2023-08-29 17:52:08,895 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 451.0) internal successors, (5863), 13 states have internal predecessors, (5863), 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) [2023-08-29 17:52:08,895 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 2383 transitions. [2023-08-29 17:52:08,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 447 transitions, 3269 flow [2023-08-29 17:52:08,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 447 transitions, 3257 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:08,913 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 17:52:08,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-29 17:52:08,914 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 44 predicate places. [2023-08-29 17:52:08,914 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 17:52:08,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:08,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:08,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:08,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:52:08,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:08,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash -586215842, now seen corresponding path program 2 times [2023-08-29 17:52:08,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:08,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600297918] [2023-08-29 17:52:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:08,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:09,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:09,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600297918] [2023-08-29 17:52:09,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600297918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:09,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:09,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:09,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751182466] [2023-08-29 17:52:09,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:09,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:09,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:09,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:09,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:10,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 17:52:10,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:10,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:10,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 17:52:10,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:12,041 INFO L130 PetriNetUnfolder]: 1197/3046 cut-off events. [2023-08-29 17:52:12,041 INFO L131 PetriNetUnfolder]: For 5855/5889 co-relation queries the response was YES. [2023-08-29 17:52:12,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11099 conditions, 3046 events. 1197/3046 cut-off events. For 5855/5889 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 21424 event pairs, 127 based on Foata normal form. 29/3030 useless extension candidates. Maximal degree in co-relation 11070. Up to 956 conditions per place. [2023-08-29 17:52:12,066 INFO L137 encePairwiseOnDemand]: 425/451 looper letters, 294 selfloop transitions, 125 changer transitions 0/455 dead transitions. [2023-08-29 17:52:12,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 455 transitions, 4307 flow [2023-08-29 17:52:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:52:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:52:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2124 transitions. [2023-08-29 17:52:12,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4281394880064503 [2023-08-29 17:52:12,073 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2124 transitions. [2023-08-29 17:52:12,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2124 transitions. [2023-08-29 17:52:12,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:12,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2124 transitions. [2023-08-29 17:52:12,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 193.0909090909091) internal successors, (2124), 11 states have internal predecessors, (2124), 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) [2023-08-29 17:52:12,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:12,087 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:12,087 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 11 states and 2124 transitions. [2023-08-29 17:52:12,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 455 transitions, 4307 flow [2023-08-29 17:52:12,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 455 transitions, 4295 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:12,154 INFO L231 Difference]: Finished difference. Result has 140 places, 307 transitions, 3098 flow [2023-08-29 17:52:12,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3098, PETRI_PLACES=140, PETRI_TRANSITIONS=307} [2023-08-29 17:52:12,155 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2023-08-29 17:52:12,156 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 307 transitions, 3098 flow [2023-08-29 17:52:12,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:12,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:12,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:12,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:52:12,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:12,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash 77834064, now seen corresponding path program 3 times [2023-08-29 17:52:12,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:12,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272057697] [2023-08-29 17:52:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:12,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:12,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272057697] [2023-08-29 17:52:12,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272057697] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:12,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:12,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:12,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125603965] [2023-08-29 17:52:12,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:12,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:13,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:13,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 307 transitions, 3098 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:13,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:13,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:13,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:15,369 INFO L130 PetriNetUnfolder]: 1521/3877 cut-off events. [2023-08-29 17:52:15,370 INFO L131 PetriNetUnfolder]: For 12014/12063 co-relation queries the response was YES. [2023-08-29 17:52:15,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15747 conditions, 3877 events. 1521/3877 cut-off events. For 12014/12063 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 29284 event pairs, 273 based on Foata normal form. 22/3841 useless extension candidates. Maximal degree in co-relation 15712. Up to 1013 conditions per place. [2023-08-29 17:52:15,400 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 360 selfloop transitions, 162 changer transitions 2/560 dead transitions. [2023-08-29 17:52:15,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 560 transitions, 5870 flow [2023-08-29 17:52:15,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:52:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:52:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2560 transitions. [2023-08-29 17:52:15,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4366365341975098 [2023-08-29 17:52:15,407 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2560 transitions. [2023-08-29 17:52:15,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2560 transitions. [2023-08-29 17:52:15,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:15,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2560 transitions. [2023-08-29 17:52:15,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 196.92307692307693) internal successors, (2560), 13 states have internal predecessors, (2560), 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) [2023-08-29 17:52:15,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 451.0) internal successors, (6314), 14 states have internal predecessors, (6314), 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) [2023-08-29 17:52:15,422 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 451.0) internal successors, (6314), 14 states have internal predecessors, (6314), 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) [2023-08-29 17:52:15,422 INFO L175 Difference]: Start difference. First operand has 140 places, 307 transitions, 3098 flow. Second operand 13 states and 2560 transitions. [2023-08-29 17:52:15,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 560 transitions, 5870 flow [2023-08-29 17:52:15,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 560 transitions, 5847 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:52:15,483 INFO L231 Difference]: Finished difference. Result has 160 places, 359 transitions, 4421 flow [2023-08-29 17:52:15,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=3086, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4421, PETRI_PLACES=160, PETRI_TRANSITIONS=359} [2023-08-29 17:52:15,484 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 79 predicate places. [2023-08-29 17:52:15,484 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 359 transitions, 4421 flow [2023-08-29 17:52:15,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:15,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:15,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:15,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:52:15,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:15,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1439346150, now seen corresponding path program 4 times [2023-08-29 17:52:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480946379] [2023-08-29 17:52:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:16,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:16,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480946379] [2023-08-29 17:52:16,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480946379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:16,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:16,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:16,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218327442] [2023-08-29 17:52:16,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:16,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:16,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:16,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:16,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:16,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 17:52:16,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 359 transitions, 4421 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:16,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:16,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 17:52:16,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:19,067 INFO L130 PetriNetUnfolder]: 1888/4760 cut-off events. [2023-08-29 17:52:19,067 INFO L131 PetriNetUnfolder]: For 22325/22396 co-relation queries the response was YES. [2023-08-29 17:52:19,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21501 conditions, 4760 events. 1888/4760 cut-off events. For 22325/22396 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 37454 event pairs, 179 based on Foata normal form. 23/4717 useless extension candidates. Maximal degree in co-relation 21457. Up to 1889 conditions per place. [2023-08-29 17:52:19,101 INFO L137 encePairwiseOnDemand]: 423/451 looper letters, 324 selfloop transitions, 214 changer transitions 0/574 dead transitions. [2023-08-29 17:52:19,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 574 transitions, 7740 flow [2023-08-29 17:52:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:52:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:52:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2080 transitions. [2023-08-29 17:52:19,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4192703084055634 [2023-08-29 17:52:19,146 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2080 transitions. [2023-08-29 17:52:19,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2080 transitions. [2023-08-29 17:52:19,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:19,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2080 transitions. [2023-08-29 17:52:19,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 189.0909090909091) internal successors, (2080), 11 states have internal predecessors, (2080), 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) [2023-08-29 17:52:19,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:19,160 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:19,160 INFO L175 Difference]: Start difference. First operand has 160 places, 359 transitions, 4421 flow. Second operand 11 states and 2080 transitions. [2023-08-29 17:52:19,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 574 transitions, 7740 flow [2023-08-29 17:52:19,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 574 transitions, 7705 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:19,289 INFO L231 Difference]: Finished difference. Result has 176 places, 431 transitions, 6363 flow [2023-08-29 17:52:19,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=4399, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6363, PETRI_PLACES=176, PETRI_TRANSITIONS=431} [2023-08-29 17:52:19,290 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 95 predicate places. [2023-08-29 17:52:19,291 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 431 transitions, 6363 flow [2023-08-29 17:52:19,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:19,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:19,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:19,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:52:19,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:19,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash -418452818, now seen corresponding path program 5 times [2023-08-29 17:52:19,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:19,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925098710] [2023-08-29 17:52:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:19,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:19,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925098710] [2023-08-29 17:52:19,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925098710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:19,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:19,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088627840] [2023-08-29 17:52:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:19,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:19,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:19,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:19,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:20,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 17:52:20,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 431 transitions, 6363 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:20,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:20,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 17:52:20,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:22,785 INFO L130 PetriNetUnfolder]: 2142/5364 cut-off events. [2023-08-29 17:52:22,785 INFO L131 PetriNetUnfolder]: For 36539/36661 co-relation queries the response was YES. [2023-08-29 17:52:22,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26321 conditions, 5364 events. 2142/5364 cut-off events. For 36539/36661 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 43191 event pairs, 268 based on Foata normal form. 49/5344 useless extension candidates. Maximal degree in co-relation 26270. Up to 1897 conditions per place. [2023-08-29 17:52:22,833 INFO L137 encePairwiseOnDemand]: 422/451 looper letters, 351 selfloop transitions, 229 changer transitions 0/616 dead transitions. [2023-08-29 17:52:22,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 616 transitions, 9366 flow [2023-08-29 17:52:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:52:22,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:52:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2109 transitions. [2023-08-29 17:52:22,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4251159040516025 [2023-08-29 17:52:22,840 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2109 transitions. [2023-08-29 17:52:22,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2109 transitions. [2023-08-29 17:52:22,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:22,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2109 transitions. [2023-08-29 17:52:22,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.72727272727272) internal successors, (2109), 11 states have internal predecessors, (2109), 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) [2023-08-29 17:52:22,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:22,853 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:52:22,853 INFO L175 Difference]: Start difference. First operand has 176 places, 431 transitions, 6363 flow. Second operand 11 states and 2109 transitions. [2023-08-29 17:52:22,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 616 transitions, 9366 flow [2023-08-29 17:52:23,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 616 transitions, 9303 flow, removed 26 selfloop flow, removed 3 redundant places. [2023-08-29 17:52:23,070 INFO L231 Difference]: Finished difference. Result has 190 places, 480 transitions, 7918 flow [2023-08-29 17:52:23,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=6304, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7918, PETRI_PLACES=190, PETRI_TRANSITIONS=480} [2023-08-29 17:52:23,071 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 109 predicate places. [2023-08-29 17:52:23,072 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 480 transitions, 7918 flow [2023-08-29 17:52:23,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:23,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:23,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:23,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:52:23,073 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:23,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 118720802, now seen corresponding path program 6 times [2023-08-29 17:52:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:23,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126260523] [2023-08-29 17:52:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:23,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:23,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126260523] [2023-08-29 17:52:23,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126260523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:23,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:23,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115306301] [2023-08-29 17:52:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:23,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:23,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:23,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:24,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:24,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 480 transitions, 7918 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:24,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:24,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:24,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:27,239 INFO L130 PetriNetUnfolder]: 2558/6429 cut-off events. [2023-08-29 17:52:27,239 INFO L131 PetriNetUnfolder]: For 53196/53337 co-relation queries the response was YES. [2023-08-29 17:52:27,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33106 conditions, 6429 events. 2558/6429 cut-off events. For 53196/53337 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 54783 event pairs, 229 based on Foata normal form. 71/6418 useless extension candidates. Maximal degree in co-relation 33048. Up to 2080 conditions per place. [2023-08-29 17:52:27,384 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 449 selfloop transitions, 345 changer transitions 3/833 dead transitions. [2023-08-29 17:52:27,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 833 transitions, 13061 flow [2023-08-29 17:52:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:52:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:52:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3472 transitions. [2023-08-29 17:52:27,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276915496427692 [2023-08-29 17:52:27,416 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3472 transitions. [2023-08-29 17:52:27,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3472 transitions. [2023-08-29 17:52:27,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:27,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3472 transitions. [2023-08-29 17:52:27,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 192.88888888888889) internal successors, (3472), 18 states have internal predecessors, (3472), 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) [2023-08-29 17:52:27,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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) [2023-08-29 17:52:27,434 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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) [2023-08-29 17:52:27,434 INFO L175 Difference]: Start difference. First operand has 190 places, 480 transitions, 7918 flow. Second operand 18 states and 3472 transitions. [2023-08-29 17:52:27,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 833 transitions, 13061 flow [2023-08-29 17:52:27,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 833 transitions, 12930 flow, removed 29 selfloop flow, removed 2 redundant places. [2023-08-29 17:52:27,804 INFO L231 Difference]: Finished difference. Result has 218 places, 591 transitions, 11257 flow [2023-08-29 17:52:27,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=7811, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11257, PETRI_PLACES=218, PETRI_TRANSITIONS=591} [2023-08-29 17:52:27,806 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 137 predicate places. [2023-08-29 17:52:27,806 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 591 transitions, 11257 flow [2023-08-29 17:52:27,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:27,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:27,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:27,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:52:27,807 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:27,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:27,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1344279614, now seen corresponding path program 7 times [2023-08-29 17:52:27,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:27,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469091726] [2023-08-29 17:52:27,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:27,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:28,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:28,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469091726] [2023-08-29 17:52:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469091726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:28,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280992115] [2023-08-29 17:52:28,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:28,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:28,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:29,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:29,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 591 transitions, 11257 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:29,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:29,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:29,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:32,061 INFO L130 PetriNetUnfolder]: 3079/7761 cut-off events. [2023-08-29 17:52:32,061 INFO L131 PetriNetUnfolder]: For 88659/88828 co-relation queries the response was YES. [2023-08-29 17:52:32,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43260 conditions, 7761 events. 3079/7761 cut-off events. For 88659/88828 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 68904 event pairs, 566 based on Foata normal form. 74/7735 useless extension candidates. Maximal degree in co-relation 43190. Up to 2452 conditions per place. [2023-08-29 17:52:32,136 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 573 selfloop transitions, 336 changer transitions 2/947 dead transitions. [2023-08-29 17:52:32,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 947 transitions, 17532 flow [2023-08-29 17:52:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:52:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:52:32,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2719 transitions. [2023-08-29 17:52:32,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306303452644916 [2023-08-29 17:52:32,142 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2719 transitions. [2023-08-29 17:52:32,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2719 transitions. [2023-08-29 17:52:32,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:32,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2719 transitions. [2023-08-29 17:52:32,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.21428571428572) internal successors, (2719), 14 states have internal predecessors, (2719), 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) [2023-08-29 17:52:32,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:32,154 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:32,154 INFO L175 Difference]: Start difference. First operand has 218 places, 591 transitions, 11257 flow. Second operand 14 states and 2719 transitions. [2023-08-29 17:52:32,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 947 transitions, 17532 flow [2023-08-29 17:52:32,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 947 transitions, 17419 flow, removed 53 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:32,850 INFO L231 Difference]: Finished difference. Result has 242 places, 688 transitions, 14703 flow [2023-08-29 17:52:32,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=11163, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14703, PETRI_PLACES=242, PETRI_TRANSITIONS=688} [2023-08-29 17:52:32,851 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 161 predicate places. [2023-08-29 17:52:32,851 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 688 transitions, 14703 flow [2023-08-29 17:52:32,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:32,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:32,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:32,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:52:32,852 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:32,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1577204, now seen corresponding path program 8 times [2023-08-29 17:52:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371882130] [2023-08-29 17:52:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:33,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:33,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371882130] [2023-08-29 17:52:33,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371882130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:33,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:33,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:33,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822041944] [2023-08-29 17:52:33,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:33,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:33,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:33,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:33,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:34,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:34,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 688 transitions, 14703 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:34,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:34,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:34,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:37,722 INFO L130 PetriNetUnfolder]: 3402/8580 cut-off events. [2023-08-29 17:52:37,723 INFO L131 PetriNetUnfolder]: For 123026/123202 co-relation queries the response was YES. [2023-08-29 17:52:37,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50901 conditions, 8580 events. 3402/8580 cut-off events. For 123026/123202 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 78403 event pairs, 443 based on Foata normal form. 71/8542 useless extension candidates. Maximal degree in co-relation 50819. Up to 2450 conditions per place. [2023-08-29 17:52:37,824 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 548 selfloop transitions, 433 changer transitions 3/1020 dead transitions. [2023-08-29 17:52:37,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1020 transitions, 20508 flow [2023-08-29 17:52:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:52:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:52:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3284 transitions. [2023-08-29 17:52:37,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42832920307812705 [2023-08-29 17:52:37,829 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3284 transitions. [2023-08-29 17:52:37,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3284 transitions. [2023-08-29 17:52:37,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:37,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3284 transitions. [2023-08-29 17:52:37,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 193.1764705882353) internal successors, (3284), 17 states have internal predecessors, (3284), 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) [2023-08-29 17:52:37,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 451.0) internal successors, (8118), 18 states have internal predecessors, (8118), 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) [2023-08-29 17:52:37,842 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 451.0) internal successors, (8118), 18 states have internal predecessors, (8118), 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) [2023-08-29 17:52:37,842 INFO L175 Difference]: Start difference. First operand has 242 places, 688 transitions, 14703 flow. Second operand 17 states and 3284 transitions. [2023-08-29 17:52:37,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 1020 transitions, 20508 flow [2023-08-29 17:52:39,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1020 transitions, 20408 flow, removed 50 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:39,091 INFO L231 Difference]: Finished difference. Result has 269 places, 768 transitions, 18360 flow [2023-08-29 17:52:39,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=14623, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18360, PETRI_PLACES=269, PETRI_TRANSITIONS=768} [2023-08-29 17:52:39,092 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 188 predicate places. [2023-08-29 17:52:39,092 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 768 transitions, 18360 flow [2023-08-29 17:52:39,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:39,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:39,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:39,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:52:39,093 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:39,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash -607029848, now seen corresponding path program 9 times [2023-08-29 17:52:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:39,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078974595] [2023-08-29 17:52:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:39,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:39,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:39,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078974595] [2023-08-29 17:52:39,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078974595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:39,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:39,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:39,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428051541] [2023-08-29 17:52:39,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:39,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:39,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:39,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:40,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:40,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 768 transitions, 18360 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:40,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:40,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:40,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:44,040 INFO L130 PetriNetUnfolder]: 3797/9575 cut-off events. [2023-08-29 17:52:44,040 INFO L131 PetriNetUnfolder]: For 173250/173506 co-relation queries the response was YES. [2023-08-29 17:52:44,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60532 conditions, 9575 events. 3797/9575 cut-off events. For 173250/173506 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 89753 event pairs, 580 based on Foata normal form. 135/9582 useless extension candidates. Maximal degree in co-relation 60438. Up to 3261 conditions per place. [2023-08-29 17:52:44,137 INFO L137 encePairwiseOnDemand]: 420/451 looper letters, 502 selfloop transitions, 524 changer transitions 2/1064 dead transitions. [2023-08-29 17:52:44,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1064 transitions, 24417 flow [2023-08-29 17:52:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:52:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:52:44,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2717 transitions. [2023-08-29 17:52:44,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43031358885017423 [2023-08-29 17:52:44,142 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2717 transitions. [2023-08-29 17:52:44,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2717 transitions. [2023-08-29 17:52:44,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:44,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2717 transitions. [2023-08-29 17:52:44,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.07142857142858) internal successors, (2717), 14 states have internal predecessors, (2717), 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) [2023-08-29 17:52:44,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:44,152 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:44,152 INFO L175 Difference]: Start difference. First operand has 269 places, 768 transitions, 18360 flow. Second operand 14 states and 2717 transitions. [2023-08-29 17:52:44,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1064 transitions, 24417 flow [2023-08-29 17:52:45,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1064 transitions, 24302 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-08-29 17:52:45,683 INFO L231 Difference]: Finished difference. Result has 291 places, 855 transitions, 22779 flow [2023-08-29 17:52:45,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=18269, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=768, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22779, PETRI_PLACES=291, PETRI_TRANSITIONS=855} [2023-08-29 17:52:45,684 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 210 predicate places. [2023-08-29 17:52:45,684 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 855 transitions, 22779 flow [2023-08-29 17:52:45,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:45,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:45,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:45,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:52:45,685 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:45,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash 213787338, now seen corresponding path program 10 times [2023-08-29 17:52:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:45,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155757516] [2023-08-29 17:52:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:45,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:46,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:46,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155757516] [2023-08-29 17:52:46,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155757516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:46,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:46,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:46,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801621171] [2023-08-29 17:52:46,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:46,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:46,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:46,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:46,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:46,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:52:46,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 855 transitions, 22779 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:46,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:46,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:52:46,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:51,928 INFO L130 PetriNetUnfolder]: 4120/10414 cut-off events. [2023-08-29 17:52:51,928 INFO L131 PetriNetUnfolder]: For 236332/236612 co-relation queries the response was YES. [2023-08-29 17:52:52,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70110 conditions, 10414 events. 4120/10414 cut-off events. For 236332/236612 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 99803 event pairs, 466 based on Foata normal form. 153/10426 useless extension candidates. Maximal degree in co-relation 70005. Up to 3437 conditions per place. [2023-08-29 17:52:52,031 INFO L137 encePairwiseOnDemand]: 421/451 looper letters, 523 selfloop transitions, 550 changer transitions 2/1111 dead transitions. [2023-08-29 17:52:52,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1111 transitions, 28657 flow [2023-08-29 17:52:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:52:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:52:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2682 transitions. [2023-08-29 17:52:52,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4247703515996199 [2023-08-29 17:52:52,035 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2682 transitions. [2023-08-29 17:52:52,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2682 transitions. [2023-08-29 17:52:52,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:52,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2682 transitions. [2023-08-29 17:52:52,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 191.57142857142858) internal successors, (2682), 14 states have internal predecessors, (2682), 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) [2023-08-29 17:52:52,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:52,043 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:52:52,043 INFO L175 Difference]: Start difference. First operand has 291 places, 855 transitions, 22779 flow. Second operand 14 states and 2682 transitions. [2023-08-29 17:52:52,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1111 transitions, 28657 flow [2023-08-29 17:52:54,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 1111 transitions, 28523 flow, removed 67 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:54,257 INFO L231 Difference]: Finished difference. Result has 316 places, 917 transitions, 26901 flow [2023-08-29 17:52:54,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=22653, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26901, PETRI_PLACES=316, PETRI_TRANSITIONS=917} [2023-08-29 17:52:54,257 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 235 predicate places. [2023-08-29 17:52:54,258 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 917 transitions, 26901 flow [2023-08-29 17:52:54,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:52:54,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:54,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:54,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:52:54,259 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:54,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash 86800194, now seen corresponding path program 11 times [2023-08-29 17:52:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:54,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306301435] [2023-08-29 17:52:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:54,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:54,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:54,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306301435] [2023-08-29 17:52:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306301435] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:54,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:54,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403226328] [2023-08-29 17:52:54,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:54,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:55,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 17:52:55,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 917 transitions, 26901 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:52:55,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:55,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 17:52:55,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:00,550 INFO L130 PetriNetUnfolder]: 4212/10668 cut-off events. [2023-08-29 17:53:00,550 INFO L131 PetriNetUnfolder]: For 293207/293499 co-relation queries the response was YES. [2023-08-29 17:53:00,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75576 conditions, 10668 events. 4212/10668 cut-off events. For 293207/293499 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 102893 event pairs, 705 based on Foata normal form. 125/10646 useless extension candidates. Maximal degree in co-relation 75459. Up to 4609 conditions per place. [2023-08-29 17:53:00,658 INFO L137 encePairwiseOnDemand]: 421/451 looper letters, 537 selfloop transitions, 506 changer transitions 0/1079 dead transitions. [2023-08-29 17:53:00,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1079 transitions, 31050 flow [2023-08-29 17:53:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:53:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:53:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2136 transitions. [2023-08-29 17:53:00,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4305583551703286 [2023-08-29 17:53:00,661 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2136 transitions. [2023-08-29 17:53:00,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2136 transitions. [2023-08-29 17:53:00,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:00,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2136 transitions. [2023-08-29 17:53:00,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 194.1818181818182) internal successors, (2136), 11 states have internal predecessors, (2136), 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) [2023-08-29 17:53:00,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:53:00,668 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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) [2023-08-29 17:53:00,668 INFO L175 Difference]: Start difference. First operand has 316 places, 917 transitions, 26901 flow. Second operand 11 states and 2136 transitions. [2023-08-29 17:53:00,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1079 transitions, 31050 flow [2023-08-29 17:53:03,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1079 transitions, 30872 flow, removed 89 selfloop flow, removed 0 redundant places. [2023-08-29 17:53:03,057 INFO L231 Difference]: Finished difference. Result has 330 places, 942 transitions, 28914 flow [2023-08-29 17:53:03,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=26743, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=482, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28914, PETRI_PLACES=330, PETRI_TRANSITIONS=942} [2023-08-29 17:53:03,059 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 249 predicate places. [2023-08-29 17:53:03,059 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 942 transitions, 28914 flow [2023-08-29 17:53:03,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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) [2023-08-29 17:53:03,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:03,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:03,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:53:03,060 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:03,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 402364368, now seen corresponding path program 12 times [2023-08-29 17:53:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:03,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789717627] [2023-08-29 17:53:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:53:03,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:03,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789717627] [2023-08-29 17:53:03,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789717627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:03,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:53:03,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291326073] [2023-08-29 17:53:03,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:03,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:53:03,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:03,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:53:03,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:53:04,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:53:04,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 942 transitions, 28914 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:53:04,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:04,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:53:04,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:10,012 INFO L130 PetriNetUnfolder]: 4536/11484 cut-off events. [2023-08-29 17:53:10,013 INFO L131 PetriNetUnfolder]: For 343761/344084 co-relation queries the response was YES. [2023-08-29 17:53:10,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84009 conditions, 11484 events. 4536/11484 cut-off events. For 343761/344084 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 112535 event pairs, 597 based on Foata normal form. 162/11490 useless extension candidates. Maximal degree in co-relation 83887. Up to 3492 conditions per place. [2023-08-29 17:53:10,148 INFO L137 encePairwiseOnDemand]: 420/451 looper letters, 591 selfloop transitions, 591 changer transitions 2/1220 dead transitions. [2023-08-29 17:53:10,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 1220 transitions, 35598 flow [2023-08-29 17:53:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:53:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:53:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2702 transitions. [2023-08-29 17:53:10,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4279379157427938 [2023-08-29 17:53:10,152 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2702 transitions. [2023-08-29 17:53:10,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2702 transitions. [2023-08-29 17:53:10,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:10,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2702 transitions. [2023-08-29 17:53:10,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.0) internal successors, (2702), 14 states have internal predecessors, (2702), 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) [2023-08-29 17:53:10,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:53:10,160 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:53:10,161 INFO L175 Difference]: Start difference. First operand has 330 places, 942 transitions, 28914 flow. Second operand 14 states and 2702 transitions. [2023-08-29 17:53:10,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 1220 transitions, 35598 flow [2023-08-29 17:53:13,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1220 transitions, 35131 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-29 17:53:13,613 INFO L231 Difference]: Finished difference. Result has 350 places, 1000 transitions, 33078 flow [2023-08-29 17:53:13,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=28514, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=533, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33078, PETRI_PLACES=350, PETRI_TRANSITIONS=1000} [2023-08-29 17:53:13,617 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 269 predicate places. [2023-08-29 17:53:13,617 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 1000 transitions, 33078 flow [2023-08-29 17:53:13,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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) [2023-08-29 17:53:13,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:13,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:13,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:53:13,618 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:13,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:13,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1079981426, now seen corresponding path program 1 times [2023-08-29 17:53:13,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485904156] [2023-08-29 17:53:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:13,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:53:13,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:13,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485904156] [2023-08-29 17:53:13,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485904156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:13,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:13,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:53:13,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512040036] [2023-08-29 17:53:13,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:13,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:53:13,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:13,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:53:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:53:14,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:53:14,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 1000 transitions, 33078 flow. Second operand has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-29 17:53:14,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:14,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:53:14,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:21,009 INFO L130 PetriNetUnfolder]: 7083/16456 cut-off events. [2023-08-29 17:53:21,010 INFO L131 PetriNetUnfolder]: For 512887/513221 co-relation queries the response was YES. [2023-08-29 17:53:21,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114526 conditions, 16456 events. 7083/16456 cut-off events. For 512887/513221 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 156765 event pairs, 3162 based on Foata normal form. 2/15938 useless extension candidates. Maximal degree in co-relation 114394. Up to 13550 conditions per place. [2023-08-29 17:53:21,216 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 890 selfloop transitions, 150 changer transitions 0/1215 dead transitions. [2023-08-29 17:53:21,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1215 transitions, 41282 flow [2023-08-29 17:53:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:53:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:53:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1181 transitions. [2023-08-29 17:53:21,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4364375461936438 [2023-08-29 17:53:21,219 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1181 transitions. [2023-08-29 17:53:21,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1181 transitions. [2023-08-29 17:53:21,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:21,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1181 transitions. [2023-08-29 17:53:21,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 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) [2023-08-29 17:53:21,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:53:21,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:53:21,223 INFO L175 Difference]: Start difference. First operand has 350 places, 1000 transitions, 33078 flow. Second operand 6 states and 1181 transitions. [2023-08-29 17:53:21,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1215 transitions, 41282 flow [2023-08-29 17:53:25,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1215 transitions, 41083 flow, removed 89 selfloop flow, removed 1 redundant places. [2023-08-29 17:53:25,995 INFO L231 Difference]: Finished difference. Result has 358 places, 1103 transitions, 35847 flow [2023-08-29 17:53:25,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=32951, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=35847, PETRI_PLACES=358, PETRI_TRANSITIONS=1103} [2023-08-29 17:53:25,996 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 277 predicate places. [2023-08-29 17:53:25,996 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 1103 transitions, 35847 flow [2023-08-29 17:53:25,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-29 17:53:25,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:25,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:25,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:53:25,996 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:25,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1857836806, now seen corresponding path program 1 times [2023-08-29 17:53:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340965899] [2023-08-29 17:53:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:53:26,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340965899] [2023-08-29 17:53:26,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340965899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:26,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:26,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:53:26,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817495407] [2023-08-29 17:53:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:26,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:53:26,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:53:26,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:53:26,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 451 [2023-08-29 17:53:26,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 1103 transitions, 35847 flow. Second operand has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2023-08-29 17:53:26,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:26,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 451 [2023-08-29 17:53:26,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:36,308 INFO L130 PetriNetUnfolder]: 9012/21521 cut-off events. [2023-08-29 17:53:36,309 INFO L131 PetriNetUnfolder]: For 679402/680372 co-relation queries the response was YES. [2023-08-29 17:53:36,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154414 conditions, 21521 events. 9012/21521 cut-off events. For 679402/680372 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 223482 event pairs, 950 based on Foata normal form. 152/21120 useless extension candidates. Maximal degree in co-relation 154277. Up to 11938 conditions per place. [2023-08-29 17:53:36,632 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 903 selfloop transitions, 661 changer transitions 4/1872 dead transitions. [2023-08-29 17:53:36,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1872 transitions, 67051 flow [2023-08-29 17:53:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:53:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:53:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1270 transitions. [2023-08-29 17:53:36,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693274205469327 [2023-08-29 17:53:36,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1270 transitions. [2023-08-29 17:53:36,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1270 transitions. [2023-08-29 17:53:36,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:36,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1270 transitions. [2023-08-29 17:53:36,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 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) [2023-08-29 17:53:36,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:53:36,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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) [2023-08-29 17:53:36,784 INFO L175 Difference]: Start difference. First operand has 358 places, 1103 transitions, 35847 flow. Second operand 6 states and 1270 transitions. [2023-08-29 17:53:36,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1872 transitions, 67051 flow [2023-08-29 17:53:44,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1872 transitions, 66689 flow, removed 181 selfloop flow, removed 0 redundant places. [2023-08-29 17:53:44,949 INFO L231 Difference]: Finished difference. Result has 368 places, 1609 transitions, 59209 flow [2023-08-29 17:53:44,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=35487, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=59209, PETRI_PLACES=368, PETRI_TRANSITIONS=1609} [2023-08-29 17:53:44,950 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 287 predicate places. [2023-08-29 17:53:44,950 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 1609 transitions, 59209 flow [2023-08-29 17:53:44,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2023-08-29 17:53:44,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:44,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:44,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:53:44,951 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:44,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1876719074, now seen corresponding path program 1 times [2023-08-29 17:53:44,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:44,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223539195] [2023-08-29 17:53:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:44,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:53:45,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:45,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223539195] [2023-08-29 17:53:45,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223539195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:45,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:45,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:53:45,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077167460] [2023-08-29 17:53:45,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:45,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:53:45,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:53:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:53:45,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:53:45,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 1609 transitions, 59209 flow. Second operand has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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) [2023-08-29 17:53:45,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:45,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:53:45,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:57,527 INFO L130 PetriNetUnfolder]: 7993/20237 cut-off events. [2023-08-29 17:53:57,527 INFO L131 PetriNetUnfolder]: For 752856/753751 co-relation queries the response was YES. [2023-08-29 17:53:57,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165840 conditions, 20237 events. 7993/20237 cut-off events. For 752856/753751 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 214964 event pairs, 1558 based on Foata normal form. 243/20331 useless extension candidates. Maximal degree in co-relation 165698. Up to 11390 conditions per place. [2023-08-29 17:53:57,796 INFO L137 encePairwiseOnDemand]: 426/451 looper letters, 1375 selfloop transitions, 486 changer transitions 7/1923 dead transitions. [2023-08-29 17:53:57,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1923 transitions, 66884 flow [2023-08-29 17:53:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:53:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:53:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3398 transitions. [2023-08-29 17:53:57,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4185760039418576 [2023-08-29 17:53:57,800 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3398 transitions. [2023-08-29 17:53:57,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3398 transitions. [2023-08-29 17:53:57,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:57,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3398 transitions. [2023-08-29 17:53:57,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 188.77777777777777) internal successors, (3398), 18 states have internal predecessors, (3398), 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) [2023-08-29 17:53:57,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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) [2023-08-29 17:53:57,810 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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) [2023-08-29 17:53:57,810 INFO L175 Difference]: Start difference. First operand has 368 places, 1609 transitions, 59209 flow. Second operand 18 states and 3398 transitions. [2023-08-29 17:53:57,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 1923 transitions, 66884 flow [2023-08-29 17:54:07,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1923 transitions, 66200 flow, removed 342 selfloop flow, removed 0 redundant places. [2023-08-29 17:54:08,019 INFO L231 Difference]: Finished difference. Result has 390 places, 1646 transitions, 61351 flow [2023-08-29 17:54:08,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=58525, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=61351, PETRI_PLACES=390, PETRI_TRANSITIONS=1646} [2023-08-29 17:54:08,021 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 309 predicate places. [2023-08-29 17:54:08,021 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 1646 transitions, 61351 flow [2023-08-29 17:54:08,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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) [2023-08-29 17:54:08,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:08,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:08,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:54:08,022 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:54:08,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1379097491, now seen corresponding path program 1 times [2023-08-29 17:54:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:08,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086630088] [2023-08-29 17:54:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:08,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:08,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:54:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086630088] [2023-08-29 17:54:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086630088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:08,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:08,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:54:08,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563682914] [2023-08-29 17:54:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:08,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:54:08,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:54:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:54:09,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 451 [2023-08-29 17:54:09,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1646 transitions, 61351 flow. Second operand has 10 states, 10 states have (on average 175.5) internal successors, (1755), 10 states have internal predecessors, (1755), 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) [2023-08-29 17:54:09,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:09,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 451 [2023-08-29 17:54:09,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:23,488 INFO L130 PetriNetUnfolder]: 10426/23677 cut-off events. [2023-08-29 17:54:23,488 INFO L131 PetriNetUnfolder]: For 824272/825023 co-relation queries the response was YES. [2023-08-29 17:54:23,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186118 conditions, 23677 events. 10426/23677 cut-off events. For 824272/825023 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 236784 event pairs, 2812 based on Foata normal form. 12/22955 useless extension candidates. Maximal degree in co-relation 185970. Up to 16626 conditions per place. [2023-08-29 17:54:23,868 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 1177 selfloop transitions, 456 changer transitions 2/1936 dead transitions. [2023-08-29 17:54:23,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1936 transitions, 71724 flow [2023-08-29 17:54:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:54:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:54:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2817 transitions. [2023-08-29 17:54:23,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164079822616408 [2023-08-29 17:54:23,873 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2817 transitions. [2023-08-29 17:54:23,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2817 transitions. [2023-08-29 17:54:23,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:23,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2817 transitions. [2023-08-29 17:54:23,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 187.8) internal successors, (2817), 15 states have internal predecessors, (2817), 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) [2023-08-29 17:54:23,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:54:23,881 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:54:23,881 INFO L175 Difference]: Start difference. First operand has 390 places, 1646 transitions, 61351 flow. Second operand 15 states and 2817 transitions. [2023-08-29 17:54:23,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1936 transitions, 71724 flow [2023-08-29 17:54:35,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1936 transitions, 71596 flow, removed 26 selfloop flow, removed 8 redundant places. [2023-08-29 17:54:35,457 INFO L231 Difference]: Finished difference. Result has 400 places, 1730 transitions, 64853 flow [2023-08-29 17:54:35,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=61263, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=378, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=64853, PETRI_PLACES=400, PETRI_TRANSITIONS=1730} [2023-08-29 17:54:35,458 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 319 predicate places. [2023-08-29 17:54:35,458 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 1730 transitions, 64853 flow [2023-08-29 17:54:35,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 175.5) internal successors, (1755), 10 states have internal predecessors, (1755), 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) [2023-08-29 17:54:35,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:35,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:35,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:54:35,459 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:54:35,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:35,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1489492606, now seen corresponding path program 1 times [2023-08-29 17:54:35,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:35,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447038960] [2023-08-29 17:54:35,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:35,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:54:36,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:36,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447038960] [2023-08-29 17:54:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447038960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:36,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:36,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:54:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688092114] [2023-08-29 17:54:36,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:36,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:54:36,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:54:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:54:37,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:54:37,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 1730 transitions, 64853 flow. Second operand has 11 states, 11 states have (on average 173.63636363636363) internal successors, (1910), 11 states have internal predecessors, (1910), 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) [2023-08-29 17:54:37,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:37,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:54:37,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:52,485 INFO L130 PetriNetUnfolder]: 9757/22316 cut-off events. [2023-08-29 17:54:52,485 INFO L131 PetriNetUnfolder]: For 834171/835166 co-relation queries the response was YES. [2023-08-29 17:54:52,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184454 conditions, 22316 events. 9757/22316 cut-off events. For 834171/835166 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 222221 event pairs, 2455 based on Foata normal form. 10/22158 useless extension candidates. Maximal degree in co-relation 184302. Up to 13204 conditions per place. [2023-08-29 17:54:52,799 INFO L137 encePairwiseOnDemand]: 441/451 looper letters, 929 selfloop transitions, 738 changer transitions 2/2042 dead transitions. [2023-08-29 17:54:52,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 2042 transitions, 75915 flow [2023-08-29 17:54:52,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:54:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:54:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2775 transitions. [2023-08-29 17:54:52,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41019955654101997 [2023-08-29 17:54:52,802 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2775 transitions. [2023-08-29 17:54:52,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2775 transitions. [2023-08-29 17:54:52,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:52,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2775 transitions. [2023-08-29 17:54:52,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.0) internal successors, (2775), 15 states have internal predecessors, (2775), 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) [2023-08-29 17:54:52,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:54:52,810 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:54:52,810 INFO L175 Difference]: Start difference. First operand has 400 places, 1730 transitions, 64853 flow. Second operand 15 states and 2775 transitions. [2023-08-29 17:54:52,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 2042 transitions, 75915 flow [2023-08-29 17:55:02,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 2042 transitions, 75830 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-08-29 17:55:02,672 INFO L231 Difference]: Finished difference. Result has 410 places, 1823 transitions, 69664 flow [2023-08-29 17:55:02,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=64762, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=69664, PETRI_PLACES=410, PETRI_TRANSITIONS=1823} [2023-08-29 17:55:02,673 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 329 predicate places. [2023-08-29 17:55:02,673 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1823 transitions, 69664 flow [2023-08-29 17:55:02,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.63636363636363) internal successors, (1910), 11 states have internal predecessors, (1910), 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) [2023-08-29 17:55:02,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:02,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:55:02,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:55:02,674 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:55:02,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:02,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1273843572, now seen corresponding path program 1 times [2023-08-29 17:55:02,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:02,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204215807] [2023-08-29 17:55:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:02,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:55:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204215807] [2023-08-29 17:55:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204215807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:03,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:55:03,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177753670] [2023-08-29 17:55:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:03,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:55:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:55:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:55:04,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:55:04,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1823 transitions, 69664 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:55:04,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:04,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:55:04,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:55:18,631 INFO L130 PetriNetUnfolder]: 9201/21739 cut-off events. [2023-08-29 17:55:18,631 INFO L131 PetriNetUnfolder]: For 859473/860383 co-relation queries the response was YES. [2023-08-29 17:55:18,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183485 conditions, 21739 events. 9201/21739 cut-off events. For 859473/860383 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 222730 event pairs, 1034 based on Foata normal form. 657/22345 useless extension candidates. Maximal degree in co-relation 183332. Up to 6395 conditions per place. [2023-08-29 17:55:18,935 INFO L137 encePairwiseOnDemand]: 436/451 looper letters, 1426 selfloop transitions, 423 changer transitions 7/2188 dead transitions. [2023-08-29 17:55:18,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 2188 transitions, 81273 flow [2023-08-29 17:55:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:55:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:55:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2913 transitions. [2023-08-29 17:55:18,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43059866962305987 [2023-08-29 17:55:18,938 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2913 transitions. [2023-08-29 17:55:18,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2913 transitions. [2023-08-29 17:55:18,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:55:18,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2913 transitions. [2023-08-29 17:55:18,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.2) internal successors, (2913), 15 states have internal predecessors, (2913), 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) [2023-08-29 17:55:18,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:55:18,945 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:55:18,945 INFO L175 Difference]: Start difference. First operand has 410 places, 1823 transitions, 69664 flow. Second operand 15 states and 2913 transitions. [2023-08-29 17:55:18,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 2188 transitions, 81273 flow [2023-08-29 17:55:29,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 2188 transitions, 80157 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-29 17:55:29,229 INFO L231 Difference]: Finished difference. Result has 420 places, 1878 transitions, 70877 flow [2023-08-29 17:55:29,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=68630, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1823, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=70877, PETRI_PLACES=420, PETRI_TRANSITIONS=1878} [2023-08-29 17:55:29,231 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 339 predicate places. [2023-08-29 17:55:29,231 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 1878 transitions, 70877 flow [2023-08-29 17:55:29,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:55:29,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:29,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:55:29,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:55:29,232 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:55:29,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:29,232 INFO L85 PathProgramCache]: Analyzing trace with hash -43296910, now seen corresponding path program 2 times [2023-08-29 17:55:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061812248] [2023-08-29 17:55:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:29,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:55:29,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:29,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061812248] [2023-08-29 17:55:29,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061812248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:29,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:29,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:55:29,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500478246] [2023-08-29 17:55:29,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:29,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:55:29,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:29,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:55:29,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:55:30,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:55:30,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1878 transitions, 70877 flow. Second operand has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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) [2023-08-29 17:55:30,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:30,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:55:30,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:55:44,394 INFO L130 PetriNetUnfolder]: 8786/21835 cut-off events. [2023-08-29 17:55:44,395 INFO L131 PetriNetUnfolder]: For 957104/958110 co-relation queries the response was YES. [2023-08-29 17:55:44,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198000 conditions, 21835 events. 8786/21835 cut-off events. For 957104/958110 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 231874 event pairs, 1077 based on Foata normal form. 524/22200 useless extension candidates. Maximal degree in co-relation 197842. Up to 6080 conditions per place. [2023-08-29 17:55:44,727 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 1043 selfloop transitions, 1144 changer transitions 5/2280 dead transitions. [2023-08-29 17:55:44,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 2280 transitions, 82182 flow [2023-08-29 17:55:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:55:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:55:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3094 transitions. [2023-08-29 17:55:44,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42876940133037694 [2023-08-29 17:55:44,729 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3094 transitions. [2023-08-29 17:55:44,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3094 transitions. [2023-08-29 17:55:44,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:55:44,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3094 transitions. [2023-08-29 17:55:44,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 193.375) internal successors, (3094), 16 states have internal predecessors, (3094), 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) [2023-08-29 17:55:44,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 451.0) internal successors, (7667), 17 states have internal predecessors, (7667), 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) [2023-08-29 17:55:44,736 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 451.0) internal successors, (7667), 17 states have internal predecessors, (7667), 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) [2023-08-29 17:55:44,736 INFO L175 Difference]: Start difference. First operand has 420 places, 1878 transitions, 70877 flow. Second operand 16 states and 3094 transitions. [2023-08-29 17:55:44,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 2280 transitions, 82182 flow [2023-08-29 17:55:56,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 2280 transitions, 82172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:55:56,847 INFO L231 Difference]: Finished difference. Result has 444 places, 1958 transitions, 78956 flow [2023-08-29 17:55:56,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=70867, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=78956, PETRI_PLACES=444, PETRI_TRANSITIONS=1958} [2023-08-29 17:55:56,849 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 363 predicate places. [2023-08-29 17:55:56,849 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 1958 transitions, 78956 flow [2023-08-29 17:55:56,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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) [2023-08-29 17:55:56,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:56,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:55:56,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:55:56,850 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:55:56,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:56,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1947797070, now seen corresponding path program 2 times [2023-08-29 17:55:56,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:56,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347254889] [2023-08-29 17:55:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:56,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:55:57,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:57,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347254889] [2023-08-29 17:55:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347254889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:55:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566446961] [2023-08-29 17:55:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:57,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:55:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:55:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:55:58,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:55:58,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1958 transitions, 78956 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:55:58,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:58,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:55:58,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:16,795 INFO L130 PetriNetUnfolder]: 10729/25516 cut-off events. [2023-08-29 17:56:16,795 INFO L131 PetriNetUnfolder]: For 1143276/1144195 co-relation queries the response was YES. [2023-08-29 17:56:17,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231608 conditions, 25516 events. 10729/25516 cut-off events. For 1143276/1144195 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 269946 event pairs, 794 based on Foata normal form. 315/25713 useless extension candidates. Maximal degree in co-relation 231439. Up to 10224 conditions per place. [2023-08-29 17:56:17,243 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1130 selfloop transitions, 1419 changer transitions 5/2908 dead transitions. [2023-08-29 17:56:17,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 2908 transitions, 114197 flow [2023-08-29 17:56:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:56:17,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:56:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2996 transitions. [2023-08-29 17:56:17,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4428677014042868 [2023-08-29 17:56:17,246 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2996 transitions. [2023-08-29 17:56:17,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2996 transitions. [2023-08-29 17:56:17,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:17,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2996 transitions. [2023-08-29 17:56:17,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 199.73333333333332) internal successors, (2996), 15 states have internal predecessors, (2996), 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) [2023-08-29 17:56:17,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:56:17,254 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:56:17,254 INFO L175 Difference]: Start difference. First operand has 444 places, 1958 transitions, 78956 flow. Second operand 15 states and 2996 transitions. [2023-08-29 17:56:17,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 2908 transitions, 114197 flow [2023-08-29 17:56:33,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 2908 transitions, 114088 flow, removed 45 selfloop flow, removed 4 redundant places. [2023-08-29 17:56:33,196 INFO L231 Difference]: Finished difference. Result has 461 places, 2502 transitions, 105604 flow [2023-08-29 17:56:33,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=78847, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=892, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=985, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=105604, PETRI_PLACES=461, PETRI_TRANSITIONS=2502} [2023-08-29 17:56:33,197 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 380 predicate places. [2023-08-29 17:56:33,197 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 2502 transitions, 105604 flow [2023-08-29 17:56:33,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:56:33,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:56:33,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:56:33,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:56:33,198 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:56:33,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:56:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1663753180, now seen corresponding path program 3 times [2023-08-29 17:56:33,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:56:33,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699944130] [2023-08-29 17:56:33,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:56:33,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:56:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:56:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:56:33,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:56:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699944130] [2023-08-29 17:56:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699944130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:56:33,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:56:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:56:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800794716] [2023-08-29 17:56:33,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:56:33,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:56:33,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:56:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:56:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:56:34,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:56:34,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 2502 transitions, 105604 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:56:34,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:56:34,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:56:34,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:57,367 INFO L130 PetriNetUnfolder]: 11218/26832 cut-off events. [2023-08-29 17:56:57,368 INFO L131 PetriNetUnfolder]: For 1289067/1290004 co-relation queries the response was YES. [2023-08-29 17:56:57,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256515 conditions, 26832 events. 11218/26832 cut-off events. For 1289067/1290004 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 286663 event pairs, 840 based on Foata normal form. 278/27054 useless extension candidates. Maximal degree in co-relation 256339. Up to 12348 conditions per place. [2023-08-29 17:56:58,022 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1018 selfloop transitions, 1597 changer transitions 7/2976 dead transitions. [2023-08-29 17:56:58,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 2976 transitions, 124083 flow [2023-08-29 17:56:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:56:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:56:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2798 transitions. [2023-08-29 17:56:58,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44314222363002853 [2023-08-29 17:56:58,024 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2798 transitions. [2023-08-29 17:56:58,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2798 transitions. [2023-08-29 17:56:58,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:58,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2798 transitions. [2023-08-29 17:56:58,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.85714285714286) internal successors, (2798), 14 states have internal predecessors, (2798), 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) [2023-08-29 17:56:58,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:56:58,033 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 17:56:58,033 INFO L175 Difference]: Start difference. First operand has 461 places, 2502 transitions, 105604 flow. Second operand 14 states and 2798 transitions. [2023-08-29 17:56:58,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 2976 transitions, 124083 flow [2023-08-29 17:57:19,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 2976 transitions, 123784 flow, removed 146 selfloop flow, removed 3 redundant places. [2023-08-29 17:57:19,356 INFO L231 Difference]: Finished difference. Result has 478 places, 2695 transitions, 119107 flow [2023-08-29 17:57:19,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=105307, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=119107, PETRI_PLACES=478, PETRI_TRANSITIONS=2695} [2023-08-29 17:57:19,358 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 397 predicate places. [2023-08-29 17:57:19,358 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 2695 transitions, 119107 flow [2023-08-29 17:57:19,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:57:19,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:57:19,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:57:19,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 17:57:19,359 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:57:19,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:57:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1923194350, now seen corresponding path program 4 times [2023-08-29 17:57:19,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:57:19,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654420635] [2023-08-29 17:57:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:57:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:57:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:57:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:57:19,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:57:19,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654420635] [2023-08-29 17:57:19,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654420635] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:57:19,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:57:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:57:19,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045049465] [2023-08-29 17:57:19,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:57:19,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:57:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:57:19,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:57:19,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:57:20,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 451 [2023-08-29 17:57:20,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 2695 transitions, 119107 flow. Second operand has 10 states, 10 states have (on average 181.4) internal successors, (1814), 10 states have internal predecessors, (1814), 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) [2023-08-29 17:57:20,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:57:20,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 451 [2023-08-29 17:57:20,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:57:48,421 INFO L130 PetriNetUnfolder]: 11930/28589 cut-off events. [2023-08-29 17:57:48,421 INFO L131 PetriNetUnfolder]: For 1491084/1492173 co-relation queries the response was YES. [2023-08-29 17:57:48,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291437 conditions, 28589 events. 11930/28589 cut-off events. For 1491084/1492173 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 309461 event pairs, 926 based on Foata normal form. 384/28868 useless extension candidates. Maximal degree in co-relation 291254. Up to 11973 conditions per place. [2023-08-29 17:57:49,136 INFO L137 encePairwiseOnDemand]: 425/451 looper letters, 1003 selfloop transitions, 1926 changer transitions 6/3289 dead transitions. [2023-08-29 17:57:49,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 3289 transitions, 143186 flow [2023-08-29 17:57:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:57:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:57:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3005 transitions. [2023-08-29 17:57:49,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4441980783444198 [2023-08-29 17:57:49,144 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3005 transitions. [2023-08-29 17:57:49,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3005 transitions. [2023-08-29 17:57:49,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:57:49,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3005 transitions. [2023-08-29 17:57:49,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 200.33333333333334) internal successors, (3005), 15 states have internal predecessors, (3005), 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) [2023-08-29 17:57:49,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:57:49,156 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:57:49,156 INFO L175 Difference]: Start difference. First operand has 478 places, 2695 transitions, 119107 flow. Second operand 15 states and 3005 transitions. [2023-08-29 17:57:49,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 3289 transitions, 143186 flow [2023-08-29 17:58:17,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 3289 transitions, 143097 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-08-29 17:58:17,115 INFO L231 Difference]: Finished difference. Result has 495 places, 3000 transitions, 138745 flow [2023-08-29 17:58:17,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=119030, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1627, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=138745, PETRI_PLACES=495, PETRI_TRANSITIONS=3000} [2023-08-29 17:58:17,117 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 414 predicate places. [2023-08-29 17:58:17,117 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 3000 transitions, 138745 flow [2023-08-29 17:58:17,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.4) internal successors, (1814), 10 states have internal predecessors, (1814), 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) [2023-08-29 17:58:17,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:58:17,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:58:17,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 17:58:17,119 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:58:17,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:58:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1672278490, now seen corresponding path program 5 times [2023-08-29 17:58:17,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:58:17,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511600582] [2023-08-29 17:58:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:58:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:58:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:58:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:58:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:58:17,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511600582] [2023-08-29 17:58:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511600582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:58:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:58:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:58:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576515684] [2023-08-29 17:58:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:58:17,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:58:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:58:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:58:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:58:18,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 17:58:18,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 3000 transitions, 138745 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:58:18,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:58:18,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 17:58:18,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:58:49,241 INFO L130 PetriNetUnfolder]: 12360/29880 cut-off events. [2023-08-29 17:58:49,241 INFO L131 PetriNetUnfolder]: For 1705300/1706392 co-relation queries the response was YES. [2023-08-29 17:58:49,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320644 conditions, 29880 events. 12360/29880 cut-off events. For 1705300/1706392 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 326938 event pairs, 953 based on Foata normal form. 372/30193 useless extension candidates. Maximal degree in co-relation 320454. Up to 12586 conditions per place. [2023-08-29 17:58:49,845 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1177 selfloop transitions, 2010 changer transitions 7/3548 dead transitions. [2023-08-29 17:58:49,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 3548 transitions, 161816 flow [2023-08-29 17:58:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:58:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:58:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3000 transitions. [2023-08-29 17:58:49,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434589800443459 [2023-08-29 17:58:49,847 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3000 transitions. [2023-08-29 17:58:49,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3000 transitions. [2023-08-29 17:58:49,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:58:49,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3000 transitions. [2023-08-29 17:58:49,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 200.0) internal successors, (3000), 15 states have internal predecessors, (3000), 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) [2023-08-29 17:58:49,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:58:49,853 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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) [2023-08-29 17:58:49,853 INFO L175 Difference]: Start difference. First operand has 495 places, 3000 transitions, 138745 flow. Second operand 15 states and 3000 transitions. [2023-08-29 17:58:49,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 3548 transitions, 161816 flow [2023-08-29 17:59:22,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 3548 transitions, 161695 flow, removed 53 selfloop flow, removed 4 redundant places. [2023-08-29 17:59:22,996 INFO L231 Difference]: Finished difference. Result has 512 places, 3233 transitions, 156680 flow [2023-08-29 17:59:22,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=138624, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1778, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=156680, PETRI_PLACES=512, PETRI_TRANSITIONS=3233} [2023-08-29 17:59:22,999 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 431 predicate places. [2023-08-29 17:59:22,999 INFO L495 AbstractCegarLoop]: Abstraction has has 512 places, 3233 transitions, 156680 flow [2023-08-29 17:59:23,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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) [2023-08-29 17:59:23,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:59:23,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:59:23,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 17:59:23,000 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:59:23,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:59:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1773097928, now seen corresponding path program 3 times [2023-08-29 17:59:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:59:23,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637844580] [2023-08-29 17:59:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:59:23,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:59:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:59:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:59:23,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:59:23,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637844580] [2023-08-29 17:59:23,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637844580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:59:23,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:59:23,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:59:23,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111362409] [2023-08-29 17:59:23,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:59:23,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:59:23,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:59:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:59:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:59:24,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 17:59:24,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 3233 transitions, 156680 flow. Second operand has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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) [2023-08-29 17:59:24,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:59:24,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 17:59:24,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:00:00,330 INFO L130 PetriNetUnfolder]: 12086/30266 cut-off events. [2023-08-29 18:00:00,330 INFO L131 PetriNetUnfolder]: For 1981867/1983048 co-relation queries the response was YES. [2023-08-29 18:00:01,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344976 conditions, 30266 events. 12086/30266 cut-off events. For 1981867/1983048 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 338106 event pairs, 1891 based on Foata normal form. 649/30745 useless extension candidates. Maximal degree in co-relation 344779. Up to 8228 conditions per place. [2023-08-29 18:00:01,299 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 1487 selfloop transitions, 2107 changer transitions 5/3753 dead transitions. [2023-08-29 18:00:01,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 3753 transitions, 175979 flow [2023-08-29 18:00:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 18:00:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 18:00:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2734 transitions. [2023-08-29 18:00:01,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.433006018371872 [2023-08-29 18:00:01,303 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2734 transitions. [2023-08-29 18:00:01,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2734 transitions. [2023-08-29 18:00:01,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:00:01,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2734 transitions. [2023-08-29 18:00:01,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 195.28571428571428) internal successors, (2734), 14 states have internal predecessors, (2734), 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) [2023-08-29 18:00:01,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 18:00:01,309 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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) [2023-08-29 18:00:01,309 INFO L175 Difference]: Start difference. First operand has 512 places, 3233 transitions, 156680 flow. Second operand 14 states and 2734 transitions. [2023-08-29 18:00:01,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 3753 transitions, 175979 flow Killed by 15