./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c -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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:44:52,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:44:52,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:44:52,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:44:52,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:44:52,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:44:52,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:44:52,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:44:52,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:44:52,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:44:52,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:44:52,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:44:52,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:44:52,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:44:52,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:44:52,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:44:52,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:44:52,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:44:52,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:44:52,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:44:52,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:44:52,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:44:52,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:44:52,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:44:52,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:44:52,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:44:52,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:44:52,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:44:52,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:44:52,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:44:52,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:44:52,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:44:52,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:44:52,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:44:52,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:44:52,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:44:52,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:44:52,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:44:52,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:44:52,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:44:52,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:44:52,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:44:52,171 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:44:52,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:44:52,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:44:52,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:44:52,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:44:52,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:44:52,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:44:52,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:44:52,174 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:44:52,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:44:52,175 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:44:52,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:44:52,176 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:44:52,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:44:52,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:44:52,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:44:52,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:44:52,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:44:52,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:44:52,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:44:52,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:44:52,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:44:52,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:44:52,179 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:44:52,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:44:52,179 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:44:52,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:44:52,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:44:52,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:44:52,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:44:52,450 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:44:52,451 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:44:52,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-29 03:44:53,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:44:53,652 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:44:53,652 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-29 03:44:53,657 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01345113f/186cb8e38680426bbae7d4337a984442/FLAGa9a72f69e [2023-08-29 03:44:53,669 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01345113f/186cb8e38680426bbae7d4337a984442 [2023-08-29 03:44:53,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:44:53,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:44:53,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:44:53,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:44:53,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:44:53,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212f437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53, skipping insertion in model container [2023-08-29 03:44:53,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:44:53,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:44:53,846 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-29 03:44:53,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:44:53,857 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:44:53,878 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-29 03:44:53,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:44:53,894 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:44:53,895 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 03:44:53,899 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:44:53,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53 WrapperNode [2023-08-29 03:44:53,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:44:53,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:44:53,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:44:53,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:44:53,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,968 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 375 [2023-08-29 03:44:53,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:44:53,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:44:53,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:44:53,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:44:53,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:53,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:44:54,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:44:54,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:44:54,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:44:54,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (1/1) ... [2023-08-29 03:44:54,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:44:54,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:44:54,064 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 03:44:54,083 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 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:44:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:44:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:44:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:44:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:44:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:44:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:44:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:44:54,095 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 03:44:54,237 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:44:54,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:44:54,774 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:44:54,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:44:54,935 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 03:44:54,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:44:54 BoogieIcfgContainer [2023-08-29 03:44:54,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:44:54,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:44:54,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:44:54,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:44:54,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:44:53" (1/3) ... [2023-08-29 03:44:54,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b238f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:44:54, skipping insertion in model container [2023-08-29 03:44:54,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:44:53" (2/3) ... [2023-08-29 03:44:54,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b238f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:44:54, skipping insertion in model container [2023-08-29 03:44:54,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:44:54" (3/3) ... [2023-08-29 03:44:54,943 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-08-29 03:44:54,948 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:44:54,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:44:54,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-08-29 03:44:54,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:44:55,052 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:44:55,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 03:44:55,227 INFO L130 PetriNetUnfolder]: 27/494 cut-off events. [2023-08-29 03:44:55,228 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:44:55,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 494 events. 27/494 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 628 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 03:44:55,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 03:44:55,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 456 transitions, 930 flow [2023-08-29 03:44:55,244 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:44:55,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 03:44:55,263 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 03:44:55,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 456 transitions, 930 flow [2023-08-29 03:44:55,321 INFO L130 PetriNetUnfolder]: 24/456 cut-off events. [2023-08-29 03:44:55,321 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:44:55,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 456 events. 24/456 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 621 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 03:44:55,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 13362 [2023-08-29 03:45:19,540 INFO L134 LiptonReduction]: Checked pairs total: 104366 [2023-08-29 03:45:19,540 INFO L136 LiptonReduction]: Total number of compositions: 452 [2023-08-29 03:45:19,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:45:19,576 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;@7202a64e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:45:19,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-08-29 03:45:19,578 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:45:19,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:45:19,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:19,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:45:19,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:19,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2023-08-29 03:45:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285837465] [2023-08-29 03:45:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:19,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:19,652 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 03:45:19,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:19,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285837465] [2023-08-29 03:45:19,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285837465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:19,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:19,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:45:19,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031044234] [2023-08-29 03:45:19,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:19,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:45:19,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:45:19,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:45:19,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 949 [2023-08-29 03:45:19,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states 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 03:45:19,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:19,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 949 [2023-08-29 03:45:19,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:20,089 INFO L130 PetriNetUnfolder]: 1464/3602 cut-off events. [2023-08-29 03:45:20,090 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2023-08-29 03:45:20,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 3602 events. 1464/3602 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 29406 event pairs, 753 based on Foata normal form. 531/3237 useless extension candidates. Maximal degree in co-relation 5158. Up to 1909 conditions per place. [2023-08-29 03:45:20,108 INFO L137 encePairwiseOnDemand]: 903/949 looper letters, 35 selfloop transitions, 0 changer transitions 1/97 dead transitions. [2023-08-29 03:45:20,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 284 flow [2023-08-29 03:45:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:45:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:45:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 992 transitions. [2023-08-29 03:45:20,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5226554267650158 [2023-08-29 03:45:20,123 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 992 transitions. [2023-08-29 03:45:20,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 992 transitions. [2023-08-29 03:45:20,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:20,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 992 transitions. [2023-08-29 03:45:20,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 496.0) internal successors, (992), 2 states have internal predecessors, (992), 0 states have call successors, (0), 0 states 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 03:45:20,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states 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 03:45:20,138 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states 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 03:45:20,139 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 2 states and 992 transitions. [2023-08-29 03:45:20,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 284 flow [2023-08-29 03:45:20,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 272 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:45:20,145 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 197 flow [2023-08-29 03:45:20,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=197, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2023-08-29 03:45:20,151 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -48 predicate places. [2023-08-29 03:45:20,152 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 197 flow [2023-08-29 03:45:20,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states 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 03:45:20,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:20,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:20,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:45:20,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:20,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash -938995998, now seen corresponding path program 1 times [2023-08-29 03:45:20,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383769259] [2023-08-29 03:45:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:20,397 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 03:45:20,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:20,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383769259] [2023-08-29 03:45:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383769259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:20,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:45:20,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819418804] [2023-08-29 03:45:20,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:20,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:45:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:45:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:45:20,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 949 [2023-08-29 03:45:20,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 03:45:20,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:20,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 949 [2023-08-29 03:45:20,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:20,886 INFO L130 PetriNetUnfolder]: 2244/5346 cut-off events. [2023-08-29 03:45:20,887 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-29 03:45:20,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8513 conditions, 5346 events. 2244/5346 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 44393 event pairs, 1615 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8510. Up to 3097 conditions per place. [2023-08-29 03:45:20,915 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 38 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-08-29 03:45:20,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 269 flow [2023-08-29 03:45:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:45:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:45:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1341 transitions. [2023-08-29 03:45:20,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102212855637515 [2023-08-29 03:45:20,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1341 transitions. [2023-08-29 03:45:20,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1341 transitions. [2023-08-29 03:45:20,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:20,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1341 transitions. [2023-08-29 03:45:20,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 03:45:20,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:20,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:20,931 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 197 flow. Second operand 3 states and 1341 transitions. [2023-08-29 03:45:20,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 269 flow [2023-08-29 03:45:20,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:45:20,933 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 193 flow [2023-08-29 03:45:20,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-08-29 03:45:20,934 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -50 predicate places. [2023-08-29 03:45:20,935 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 193 flow [2023-08-29 03:45:20,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 03:45:20,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:20,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:20,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:45:20,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:20,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash -431632596, now seen corresponding path program 1 times [2023-08-29 03:45:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:20,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773512396] [2023-08-29 03:45:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:20,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:45:21,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:21,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773512396] [2023-08-29 03:45:21,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773512396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:21,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:45:21,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057760132] [2023-08-29 03:45:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:21,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:45:21,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:45:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:45:21,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 03:45:21,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states 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 03:45:21,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:21,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 03:45:21,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:21,546 INFO L130 PetriNetUnfolder]: 1885/4239 cut-off events. [2023-08-29 03:45:21,546 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 03:45:21,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6769 conditions, 4239 events. 1885/4239 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 32940 event pairs, 1010 based on Foata normal form. 0/3294 useless extension candidates. Maximal degree in co-relation 6765. Up to 2453 conditions per place. [2023-08-29 03:45:21,589 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 37 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-08-29 03:45:21,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 265 flow [2023-08-29 03:45:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:45:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:45:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 03:45:21,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 03:45:21,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 03:45:21,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 03:45:21,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:21,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 03:45:21,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 03:45:21,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:21,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:21,647 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 193 flow. Second operand 3 states and 1366 transitions. [2023-08-29 03:45:21,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 265 flow [2023-08-29 03:45:21,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:21,650 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 190 flow [2023-08-29 03:45:21,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2023-08-29 03:45:21,650 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -51 predicate places. [2023-08-29 03:45:21,651 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 190 flow [2023-08-29 03:45:21,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states 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 03:45:21,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:21,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:21,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:45:21,652 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:21,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash -96971984, now seen corresponding path program 1 times [2023-08-29 03:45:21,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:21,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692195828] [2023-08-29 03:45:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:21,788 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 03:45:21,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692195828] [2023-08-29 03:45:21,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692195828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:21,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:45:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800261862] [2023-08-29 03:45:21,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:21,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:45:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:21,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:45:21,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:45:21,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 949 [2023-08-29 03:45:21,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 03:45:21,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:21,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 949 [2023-08-29 03:45:21,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:22,255 INFO L130 PetriNetUnfolder]: 1464/3422 cut-off events. [2023-08-29 03:45:22,256 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 03:45:22,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5387 conditions, 3422 events. 1464/3422 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26774 event pairs, 753 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 5383. Up to 1908 conditions per place. [2023-08-29 03:45:22,277 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 34 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-29 03:45:22,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 264 flow [2023-08-29 03:45:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:45:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:45:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 03:45:22,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 03:45:22,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 03:45:22,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 03:45:22,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:22,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 03:45:22,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 03:45:22,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:22,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:22,290 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 190 flow. Second operand 3 states and 1366 transitions. [2023-08-29 03:45:22,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 264 flow [2023-08-29 03:45:22,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:22,293 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 201 flow [2023-08-29 03:45:22,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-08-29 03:45:22,294 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -49 predicate places. [2023-08-29 03:45:22,295 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 201 flow [2023-08-29 03:45:22,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 03:45:22,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:22,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:22,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:45:22,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:22,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash -41923511, now seen corresponding path program 1 times [2023-08-29 03:45:22,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:22,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568854905] [2023-08-29 03:45:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:45:22,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568854905] [2023-08-29 03:45:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568854905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:22,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:45:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819688981] [2023-08-29 03:45:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:22,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:45:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:45:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 03:45:22,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 949 [2023-08-29 03:45:22,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states 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 03:45:22,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:22,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 949 [2023-08-29 03:45:22,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:23,000 INFO L130 PetriNetUnfolder]: 1464/3424 cut-off events. [2023-08-29 03:45:23,000 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 03:45:23,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 3424 events. 1464/3424 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26804 event pairs, 753 based on Foata normal form. 0/2618 useless extension candidates. Maximal degree in co-relation 5392. Up to 1907 conditions per place. [2023-08-29 03:45:23,017 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 32 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2023-08-29 03:45:23,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 281 flow [2023-08-29 03:45:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:45:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:45:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1804 transitions. [2023-08-29 03:45:23,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47523709167544786 [2023-08-29 03:45:23,021 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1804 transitions. [2023-08-29 03:45:23,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1804 transitions. [2023-08-29 03:45:23,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:23,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1804 transitions. [2023-08-29 03:45:23,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 03:45:23,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states 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 03:45:23,032 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states 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 03:45:23,033 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 201 flow. Second operand 4 states and 1804 transitions. [2023-08-29 03:45:23,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 281 flow [2023-08-29 03:45:23,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 277 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:23,035 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 225 flow [2023-08-29 03:45:23,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-08-29 03:45:23,036 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -46 predicate places. [2023-08-29 03:45:23,036 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 225 flow [2023-08-29 03:45:23,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states 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 03:45:23,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:23,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:23,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:45:23,038 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:23,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:23,038 INFO L85 PathProgramCache]: Analyzing trace with hash 45779351, now seen corresponding path program 1 times [2023-08-29 03:45:23,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:23,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990832711] [2023-08-29 03:45:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:23,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:45:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:23,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990832711] [2023-08-29 03:45:23,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990832711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:23,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:23,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:45:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445023635] [2023-08-29 03:45:23,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:23,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:45:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:23,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:45:23,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:45:23,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 03:45:23,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states 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 03:45:23,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:23,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 03:45:23,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:26,212 INFO L130 PetriNetUnfolder]: 7780/12675 cut-off events. [2023-08-29 03:45:26,213 INFO L131 PetriNetUnfolder]: For 20/32 co-relation queries the response was YES. [2023-08-29 03:45:26,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22527 conditions, 12675 events. 7780/12675 cut-off events. For 20/32 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 91995 event pairs, 1991 based on Foata normal form. 4/9566 useless extension candidates. Maximal degree in co-relation 22521. Up to 5477 conditions per place. [2023-08-29 03:45:26,279 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 115 selfloop transitions, 9 changer transitions 0/174 dead transitions. [2023-08-29 03:45:26,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 174 transitions, 635 flow [2023-08-29 03:45:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:45:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:45:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2726 transitions. [2023-08-29 03:45:26,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47874956094134175 [2023-08-29 03:45:26,287 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2726 transitions. [2023-08-29 03:45:26,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2726 transitions. [2023-08-29 03:45:26,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:26,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2726 transitions. [2023-08-29 03:45:26,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 454.3333333333333) internal successors, (2726), 6 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states 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 03:45:26,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:26,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:26,301 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 225 flow. Second operand 6 states and 2726 transitions. [2023-08-29 03:45:26,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 174 transitions, 635 flow [2023-08-29 03:45:26,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 174 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:26,305 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 288 flow [2023-08-29 03:45:26,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-08-29 03:45:26,307 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -37 predicate places. [2023-08-29 03:45:26,307 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 288 flow [2023-08-29 03:45:26,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states 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 03:45:26,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:26,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:26,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:45:26,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:26,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash 40373737, now seen corresponding path program 1 times [2023-08-29 03:45:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184610049] [2023-08-29 03:45:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:26,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:26,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184610049] [2023-08-29 03:45:26,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184610049] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:45:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799263109] [2023-08-29 03:45:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:26,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:45:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:45:26,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:45:26,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:45:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:26,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 03:45:26,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:45:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:26,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:45:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:26,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799263109] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:45:26,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:45:26,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:45:26,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925501367] [2023-08-29 03:45:26,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:45:26,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:45:26,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:26,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:45:26,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:45:27,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 03:45:27,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states 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 03:45:27,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:27,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 03:45:27,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:29,391 INFO L130 PetriNetUnfolder]: 5656/11573 cut-off events. [2023-08-29 03:45:29,392 INFO L131 PetriNetUnfolder]: For 1492/1613 co-relation queries the response was YES. [2023-08-29 03:45:29,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 11573 events. 5656/11573 cut-off events. For 1492/1613 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 100012 event pairs, 1979 based on Foata normal form. 29/9220 useless extension candidates. Maximal degree in co-relation 21294. Up to 3870 conditions per place. [2023-08-29 03:45:29,462 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 132 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-29 03:45:29,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 212 transitions, 963 flow [2023-08-29 03:45:29,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:45:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:45:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 03:45:29,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 03:45:29,471 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 03:45:29,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 03:45:29,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:29,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 03:45:29,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states 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 03:45:29,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:45:29,490 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:45:29,491 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 288 flow. Second operand 10 states and 4441 transitions. [2023-08-29 03:45:29,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 212 transitions, 963 flow [2023-08-29 03:45:29,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 212 transitions, 963 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:45:29,509 INFO L231 Difference]: Finished difference. Result has 118 places, 117 transitions, 438 flow [2023-08-29 03:45:29,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=438, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2023-08-29 03:45:29,512 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2023-08-29 03:45:29,512 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 438 flow [2023-08-29 03:45:29,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states 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 03:45:29,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:29,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:29,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 03:45:29,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:45:29,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:29,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 833024825, now seen corresponding path program 1 times [2023-08-29 03:45:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786019360] [2023-08-29 03:45:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:29,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:29,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786019360] [2023-08-29 03:45:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786019360] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:45:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655375631] [2023-08-29 03:45:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:29,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:45:29,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:45:29,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:45:29,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:45:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:30,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 03:45:30,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:45:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:30,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:45:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:45:30,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655375631] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:45:30,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:45:30,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:45:30,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412674901] [2023-08-29 03:45:30,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:45:30,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:45:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:45:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:45:30,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 03:45:30,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 438 flow. Second operand has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states 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 03:45:30,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:30,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 03:45:30,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:31,829 INFO L130 PetriNetUnfolder]: 3944/8623 cut-off events. [2023-08-29 03:45:31,830 INFO L131 PetriNetUnfolder]: For 1921/2120 co-relation queries the response was YES. [2023-08-29 03:45:31,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16142 conditions, 8623 events. 3944/8623 cut-off events. For 1921/2120 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 74969 event pairs, 1345 based on Foata normal form. 66/7168 useless extension candidates. Maximal degree in co-relation 16127. Up to 3219 conditions per place. [2023-08-29 03:45:31,896 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 112 selfloop transitions, 21 changer transitions 0/194 dead transitions. [2023-08-29 03:45:31,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 194 transitions, 909 flow [2023-08-29 03:45:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:45:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:45:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 03:45:31,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 03:45:31,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 03:45:31,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 03:45:31,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:31,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 03:45:31,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states 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 03:45:31,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:45:31,925 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:45:31,925 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 438 flow. Second operand 10 states and 4441 transitions. [2023-08-29 03:45:31,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 194 transitions, 909 flow [2023-08-29 03:45:31,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 194 transitions, 887 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:31,939 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 481 flow [2023-08-29 03:45:31,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-29 03:45:31,940 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-08-29 03:45:31,940 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 481 flow [2023-08-29 03:45:31,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states 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 03:45:31,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:31,941 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:31,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:45:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-29 03:45:32,190 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:32,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1189619696, now seen corresponding path program 2 times [2023-08-29 03:45:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:32,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937485167] [2023-08-29 03:45:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:45:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937485167] [2023-08-29 03:45:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937485167] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:32,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:32,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:45:32,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702189597] [2023-08-29 03:45:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:45:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:45:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:45:33,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 03:45:33,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states 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 03:45:33,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:33,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 03:45:33,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:36,350 INFO L130 PetriNetUnfolder]: 11834/19861 cut-off events. [2023-08-29 03:45:36,351 INFO L131 PetriNetUnfolder]: For 9325/9745 co-relation queries the response was YES. [2023-08-29 03:45:36,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46281 conditions, 19861 events. 11834/19861 cut-off events. For 9325/9745 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 154800 event pairs, 2224 based on Foata normal form. 52/16967 useless extension candidates. Maximal degree in co-relation 46263. Up to 8760 conditions per place. [2023-08-29 03:45:36,492 INFO L137 encePairwiseOnDemand]: 933/949 looper letters, 119 selfloop transitions, 33 changer transitions 0/203 dead transitions. [2023-08-29 03:45:36,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 203 transitions, 1059 flow [2023-08-29 03:45:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:45:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:45:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2677 transitions. [2023-08-29 03:45:36,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701440112399016 [2023-08-29 03:45:36,611 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2677 transitions. [2023-08-29 03:45:36,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2677 transitions. [2023-08-29 03:45:36,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:36,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2677 transitions. [2023-08-29 03:45:36,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.1666666666667) internal successors, (2677), 6 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states 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 03:45:36,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:36,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:36,629 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 481 flow. Second operand 6 states and 2677 transitions. [2023-08-29 03:45:36,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 203 transitions, 1059 flow [2023-08-29 03:45:36,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 203 transitions, 1038 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:45:36,787 INFO L231 Difference]: Finished difference. Result has 136 places, 152 transitions, 766 flow [2023-08-29 03:45:36,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=136, PETRI_TRANSITIONS=152} [2023-08-29 03:45:36,788 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -5 predicate places. [2023-08-29 03:45:36,788 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 152 transitions, 766 flow [2023-08-29 03:45:36,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states 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 03:45:36,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:36,789 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:36,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:45:36,789 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:36,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1776508583, now seen corresponding path program 1 times [2023-08-29 03:45:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:36,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386635022] [2023-08-29 03:45:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:45:36,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386635022] [2023-08-29 03:45:36,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386635022] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:36,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:36,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:45:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082338045] [2023-08-29 03:45:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:36,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:45:36,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:36,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:45:36,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:45:36,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 949 [2023-08-29 03:45:36,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 152 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 03:45:36,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:36,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 949 [2023-08-29 03:45:36,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:40,139 INFO L130 PetriNetUnfolder]: 12047/23688 cut-off events. [2023-08-29 03:45:40,140 INFO L131 PetriNetUnfolder]: For 21973/23919 co-relation queries the response was YES. [2023-08-29 03:45:40,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60309 conditions, 23688 events. 12047/23688 cut-off events. For 21973/23919 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 216867 event pairs, 2210 based on Foata normal form. 102/20698 useless extension candidates. Maximal degree in co-relation 60286. Up to 9117 conditions per place. [2023-08-29 03:45:40,358 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 124 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2023-08-29 03:45:40,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 200 transitions, 1338 flow [2023-08-29 03:45:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:45:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:45:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1399 transitions. [2023-08-29 03:45:40,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4913944502985599 [2023-08-29 03:45:40,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1399 transitions. [2023-08-29 03:45:40,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1399 transitions. [2023-08-29 03:45:40,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:40,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1399 transitions. [2023-08-29 03:45:40,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 466.3333333333333) internal successors, (1399), 3 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states 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 03:45:40,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:40,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:40,370 INFO L175 Difference]: Start difference. First operand has 136 places, 152 transitions, 766 flow. Second operand 3 states and 1399 transitions. [2023-08-29 03:45:40,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 200 transitions, 1338 flow [2023-08-29 03:45:40,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 200 transitions, 1338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:45:40,482 INFO L231 Difference]: Finished difference. Result has 138 places, 155 transitions, 810 flow [2023-08-29 03:45:40,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=138, PETRI_TRANSITIONS=155} [2023-08-29 03:45:40,483 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2023-08-29 03:45:40,483 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 155 transitions, 810 flow [2023-08-29 03:45:40,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 03:45:40,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:40,484 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:40,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:45:40,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:40,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:40,485 INFO L85 PathProgramCache]: Analyzing trace with hash -762799491, now seen corresponding path program 1 times [2023-08-29 03:45:40,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995056827] [2023-08-29 03:45:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:40,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:45:40,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995056827] [2023-08-29 03:45:40,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995056827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:40,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:40,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:45:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354022175] [2023-08-29 03:45:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:40,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:45:40,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:45:40,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:45:40,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 03:45:40,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 155 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 03:45:40,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:40,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 03:45:40,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:43,186 INFO L130 PetriNetUnfolder]: 13053/24004 cut-off events. [2023-08-29 03:45:43,186 INFO L131 PetriNetUnfolder]: For 27770/29935 co-relation queries the response was YES. [2023-08-29 03:45:43,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63973 conditions, 24004 events. 13053/24004 cut-off events. For 27770/29935 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 208030 event pairs, 5272 based on Foata normal form. 118/21391 useless extension candidates. Maximal degree in co-relation 63949. Up to 16252 conditions per place. [2023-08-29 03:45:43,463 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 85 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-08-29 03:45:43,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 980 flow [2023-08-29 03:45:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:45:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:45:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1365 transitions. [2023-08-29 03:45:43,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4794520547945205 [2023-08-29 03:45:43,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1365 transitions. [2023-08-29 03:45:43,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1365 transitions. [2023-08-29 03:45:43,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:43,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1365 transitions. [2023-08-29 03:45:43,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states 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 03:45:43,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:43,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:45:43,472 INFO L175 Difference]: Start difference. First operand has 138 places, 155 transitions, 810 flow. Second operand 3 states and 1365 transitions. [2023-08-29 03:45:43,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 980 flow [2023-08-29 03:45:43,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 153 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:45:43,566 INFO L231 Difference]: Finished difference. Result has 137 places, 153 transitions, 804 flow [2023-08-29 03:45:43,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=137, PETRI_TRANSITIONS=153} [2023-08-29 03:45:43,567 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2023-08-29 03:45:43,567 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 153 transitions, 804 flow [2023-08-29 03:45:43,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 03:45:43,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:43,567 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:43,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:45:43,568 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:43,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1535335502, now seen corresponding path program 2 times [2023-08-29 03:45:43,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:43,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997762826] [2023-08-29 03:45:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:45:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997762826] [2023-08-29 03:45:44,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997762826] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:44,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:44,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 03:45:44,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299739414] [2023-08-29 03:45:44,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:44,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 03:45:44,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:44,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 03:45:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 03:45:45,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 03:45:45,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 153 transitions, 804 flow. Second operand has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states 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 03:45:45,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:45,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 03:45:45,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:50,266 INFO L130 PetriNetUnfolder]: 22244/33780 cut-off events. [2023-08-29 03:45:50,267 INFO L131 PetriNetUnfolder]: For 37833/42289 co-relation queries the response was YES. [2023-08-29 03:45:50,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96442 conditions, 33780 events. 22244/33780 cut-off events. For 37833/42289 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 246358 event pairs, 2231 based on Foata normal form. 1686/31596 useless extension candidates. Maximal degree in co-relation 96417. Up to 9892 conditions per place. [2023-08-29 03:45:50,545 INFO L137 encePairwiseOnDemand]: 943/949 looper letters, 218 selfloop transitions, 8 changer transitions 0/284 dead transitions. [2023-08-29 03:45:50,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 284 transitions, 1948 flow [2023-08-29 03:45:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:45:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:45:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3067 transitions. [2023-08-29 03:45:50,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616889959355713 [2023-08-29 03:45:50,552 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3067 transitions. [2023-08-29 03:45:50,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3067 transitions. [2023-08-29 03:45:50,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:50,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3067 transitions. [2023-08-29 03:45:50,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 438.14285714285717) internal successors, (3067), 7 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states 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 03:45:50,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states 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 03:45:50,561 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states 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 03:45:50,561 INFO L175 Difference]: Start difference. First operand has 137 places, 153 transitions, 804 flow. Second operand 7 states and 3067 transitions. [2023-08-29 03:45:50,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 284 transitions, 1948 flow [2023-08-29 03:45:50,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 284 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:45:50,910 INFO L231 Difference]: Finished difference. Result has 140 places, 152 transitions, 807 flow [2023-08-29 03:45:50,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=807, PETRI_PLACES=140, PETRI_TRANSITIONS=152} [2023-08-29 03:45:50,911 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2023-08-29 03:45:50,911 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 152 transitions, 807 flow [2023-08-29 03:45:50,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states 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 03:45:50,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:50,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:45:50,912 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:50,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash 879521503, now seen corresponding path program 1 times [2023-08-29 03:45:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789659314] [2023-08-29 03:45:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:45:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:51,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789659314] [2023-08-29 03:45:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789659314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:51,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:51,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:45:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141349075] [2023-08-29 03:45:51,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:45:51,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:45:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:45:51,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 03:45:51,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 152 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states 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 03:45:51,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:51,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 03:45:51,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:45:54,804 INFO L130 PetriNetUnfolder]: 13363/24568 cut-off events. [2023-08-29 03:45:54,804 INFO L131 PetriNetUnfolder]: For 27373/29559 co-relation queries the response was YES. [2023-08-29 03:45:54,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64879 conditions, 24568 events. 13363/24568 cut-off events. For 27373/29559 co-relation queries the response was YES. Maximal size of possible extension queue 758. Compared 213838 event pairs, 4730 based on Foata normal form. 158/21908 useless extension candidates. Maximal degree in co-relation 64855. Up to 15323 conditions per place. [2023-08-29 03:45:55,055 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 120 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2023-08-29 03:45:55,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 194 transitions, 1230 flow [2023-08-29 03:45:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:45:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:45:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2680 transitions. [2023-08-29 03:45:55,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47067088162978576 [2023-08-29 03:45:55,060 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2680 transitions. [2023-08-29 03:45:55,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2680 transitions. [2023-08-29 03:45:55,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:45:55,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2680 transitions. [2023-08-29 03:45:55,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.6666666666667) internal successors, (2680), 6 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states 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 03:45:55,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:55,069 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:45:55,069 INFO L175 Difference]: Start difference. First operand has 140 places, 152 transitions, 807 flow. Second operand 6 states and 2680 transitions. [2023-08-29 03:45:55,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 194 transitions, 1230 flow [2023-08-29 03:45:55,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 194 transitions, 1216 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:45:55,155 INFO L231 Difference]: Finished difference. Result has 145 places, 164 transitions, 919 flow [2023-08-29 03:45:55,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=145, PETRI_TRANSITIONS=164} [2023-08-29 03:45:55,156 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 4 predicate places. [2023-08-29 03:45:55,156 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 164 transitions, 919 flow [2023-08-29 03:45:55,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states 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 03:45:55,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:45:55,157 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:45:55,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:45:55,157 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:45:55,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:45:55,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1444693734, now seen corresponding path program 1 times [2023-08-29 03:45:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:45:55,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871701868] [2023-08-29 03:45:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:45:55,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:45:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:45:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:45:56,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:45:56,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871701868] [2023-08-29 03:45:56,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871701868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:45:56,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:45:56,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 03:45:56,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860194911] [2023-08-29 03:45:56,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:45:56,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 03:45:56,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:45:56,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 03:45:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-29 03:45:57,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 949 [2023-08-29 03:45:57,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 164 transitions, 919 flow. Second operand has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states 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 03:45:57,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:45:57,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 949 [2023-08-29 03:45:57,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:46:04,150 INFO L130 PetriNetUnfolder]: 32738/53327 cut-off events. [2023-08-29 03:46:04,151 INFO L131 PetriNetUnfolder]: For 64807/71369 co-relation queries the response was YES. [2023-08-29 03:46:04,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148222 conditions, 53327 events. 32738/53327 cut-off events. For 64807/71369 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 437829 event pairs, 5722 based on Foata normal form. 247/47646 useless extension candidates. Maximal degree in co-relation 148194. Up to 22851 conditions per place. [2023-08-29 03:46:04,629 INFO L137 encePairwiseOnDemand]: 936/949 looper letters, 256 selfloop transitions, 62 changer transitions 0/373 dead transitions. [2023-08-29 03:46:04,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 373 transitions, 2924 flow [2023-08-29 03:46:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:46:04,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:46:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4300 transitions. [2023-08-29 03:46:04,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45310853530031614 [2023-08-29 03:46:04,661 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4300 transitions. [2023-08-29 03:46:04,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4300 transitions. [2023-08-29 03:46:04,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:46:04,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4300 transitions. [2023-08-29 03:46:04,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states 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 03:46:04,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:04,685 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:04,685 INFO L175 Difference]: Start difference. First operand has 145 places, 164 transitions, 919 flow. Second operand 10 states and 4300 transitions. [2023-08-29 03:46:04,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 373 transitions, 2924 flow [2023-08-29 03:46:04,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 373 transitions, 2868 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 03:46:04,875 INFO L231 Difference]: Finished difference. Result has 158 places, 214 transitions, 1624 flow [2023-08-29 03:46:04,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1624, PETRI_PLACES=158, PETRI_TRANSITIONS=214} [2023-08-29 03:46:04,876 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 17 predicate places. [2023-08-29 03:46:04,876 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 214 transitions, 1624 flow [2023-08-29 03:46:04,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states 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 03:46:04,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:46:04,877 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:46:04,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:46:04,878 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:46:04,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:46:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash 652334830, now seen corresponding path program 2 times [2023-08-29 03:46:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:46:04,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301938902] [2023-08-29 03:46:04,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:46:04,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:46:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:46:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:46:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:46:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301938902] [2023-08-29 03:46:06,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301938902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:46:06,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:46:06,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 03:46:06,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195397020] [2023-08-29 03:46:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:46:06,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 03:46:06,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:46:06,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 03:46:06,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-29 03:46:07,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 949 [2023-08-29 03:46:07,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 214 transitions, 1624 flow. Second operand has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:46:07,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:46:07,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 949 [2023-08-29 03:46:07,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:46:15,593 INFO L130 PetriNetUnfolder]: 35903/64641 cut-off events. [2023-08-29 03:46:15,593 INFO L131 PetriNetUnfolder]: For 147315/158317 co-relation queries the response was YES. [2023-08-29 03:46:16,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192514 conditions, 64641 events. 35903/64641 cut-off events. For 147315/158317 co-relation queries the response was YES. Maximal size of possible extension queue 1791. Compared 611728 event pairs, 9745 based on Foata normal form. 846/58458 useless extension candidates. Maximal degree in co-relation 192481. Up to 30662 conditions per place. [2023-08-29 03:46:16,444 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 217 selfloop transitions, 124 changer transitions 0/404 dead transitions. [2023-08-29 03:46:16,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 404 transitions, 3819 flow [2023-08-29 03:46:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:46:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:46:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4326 transitions. [2023-08-29 03:46:16,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4558482613277134 [2023-08-29 03:46:16,451 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4326 transitions. [2023-08-29 03:46:16,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4326 transitions. [2023-08-29 03:46:16,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:46:16,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4326 transitions. [2023-08-29 03:46:16,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 432.6) internal successors, (4326), 10 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states 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 03:46:16,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:16,468 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:16,468 INFO L175 Difference]: Start difference. First operand has 158 places, 214 transitions, 1624 flow. Second operand 10 states and 4326 transitions. [2023-08-29 03:46:16,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 404 transitions, 3819 flow [2023-08-29 03:46:17,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 404 transitions, 3803 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:46:17,057 INFO L231 Difference]: Finished difference. Result has 166 places, 293 transitions, 3037 flow [2023-08-29 03:46:17,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=1608, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3037, PETRI_PLACES=166, PETRI_TRANSITIONS=293} [2023-08-29 03:46:17,058 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 25 predicate places. [2023-08-29 03:46:17,058 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 293 transitions, 3037 flow [2023-08-29 03:46:17,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states 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 03:46:17,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:46:17,059 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:46:17,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:46:17,060 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:46:17,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:46:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1546112379, now seen corresponding path program 1 times [2023-08-29 03:46:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:46:17,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137854821] [2023-08-29 03:46:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:46:17,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:46:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:46:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:46:17,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:46:17,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137854821] [2023-08-29 03:46:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137854821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:46:17,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:46:17,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:46:17,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991833825] [2023-08-29 03:46:17,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:46:17,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:46:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:46:17,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:46:17,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:46:18,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 03:46:18,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 293 transitions, 3037 flow. Second operand has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states 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 03:46:18,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:46:18,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 03:46:18,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:46:32,377 INFO L130 PetriNetUnfolder]: 62449/96179 cut-off events. [2023-08-29 03:46:32,378 INFO L131 PetriNetUnfolder]: For 349888/359283 co-relation queries the response was YES. [2023-08-29 03:46:33,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321894 conditions, 96179 events. 62449/96179 cut-off events. For 349888/359283 co-relation queries the response was YES. Maximal size of possible extension queue 2349. Compared 790468 event pairs, 14305 based on Foata normal form. 770/85666 useless extension candidates. Maximal degree in co-relation 321858. Up to 53457 conditions per place. [2023-08-29 03:46:33,786 INFO L137 encePairwiseOnDemand]: 935/949 looper letters, 268 selfloop transitions, 145 changer transitions 0/475 dead transitions. [2023-08-29 03:46:33,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 475 transitions, 5951 flow [2023-08-29 03:46:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:46:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:46:33,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2672 transitions. [2023-08-29 03:46:33,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46926589392342816 [2023-08-29 03:46:33,790 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2672 transitions. [2023-08-29 03:46:33,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2672 transitions. [2023-08-29 03:46:33,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:46:33,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2672 transitions. [2023-08-29 03:46:33,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 445.3333333333333) internal successors, (2672), 6 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 03:46:33,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:46:33,797 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:46:33,798 INFO L175 Difference]: Start difference. First operand has 166 places, 293 transitions, 3037 flow. Second operand 6 states and 2672 transitions. [2023-08-29 03:46:33,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 475 transitions, 5951 flow [2023-08-29 03:46:35,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 475 transitions, 5667 flow, removed 134 selfloop flow, removed 4 redundant places. [2023-08-29 03:46:35,453 INFO L231 Difference]: Finished difference. Result has 172 places, 427 transitions, 5381 flow [2023-08-29 03:46:35,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=2913, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5381, PETRI_PLACES=172, PETRI_TRANSITIONS=427} [2023-08-29 03:46:35,454 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2023-08-29 03:46:35,454 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 427 transitions, 5381 flow [2023-08-29 03:46:35,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states 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 03:46:35,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:46:35,455 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:46:35,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 03:46:35,455 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:46:35,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:46:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash 996210625, now seen corresponding path program 3 times [2023-08-29 03:46:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:46:35,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851859070] [2023-08-29 03:46:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:46:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:46:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:46:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:46:35,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:46:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851859070] [2023-08-29 03:46:35,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851859070] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:46:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420356919] [2023-08-29 03:46:35,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 03:46:35,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:46:35,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:46:35,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:46:35,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 03:46:36,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-29 03:46:36,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 03:46:36,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 69 conjunts are in the unsatisfiable core [2023-08-29 03:46:36,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:46:36,198 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-29 03:46:36,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2023-08-29 03:46:36,234 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-29 03:46:36,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-29 03:46:36,271 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-29 03:46:36,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-29 03:46:36,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-29 03:46:36,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-29 03:46:36,410 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:46:36,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-29 03:46:36,441 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:46:36,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-29 03:46:36,511 INFO L321 Elim1Store]: treesize reduction 83, result has 36.6 percent of original size [2023-08-29 03:46:36,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 116 [2023-08-29 03:46:36,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 94 [2023-08-29 03:46:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-29 03:46:38,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:46:38,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420356919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:46:38,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:46:38,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 16 [2023-08-29 03:46:38,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780639512] [2023-08-29 03:46:38,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:46:38,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 03:46:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:46:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 03:46:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-08-29 03:46:40,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 949 [2023-08-29 03:46:40,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 427 transitions, 5381 flow. Second operand has 11 states, 11 states have (on average 415.8181818181818) internal successors, (4574), 11 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states 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 03:46:40,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:46:40,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 949 [2023-08-29 03:46:40,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:46:54,520 INFO L130 PetriNetUnfolder]: 60736/94851 cut-off events. [2023-08-29 03:46:54,520 INFO L131 PetriNetUnfolder]: For 412757/423001 co-relation queries the response was YES. [2023-08-29 03:46:55,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343206 conditions, 94851 events. 60736/94851 cut-off events. For 412757/423001 co-relation queries the response was YES. Maximal size of possible extension queue 2418. Compared 796176 event pairs, 7301 based on Foata normal form. 710/85218 useless extension candidates. Maximal degree in co-relation 343166. Up to 51664 conditions per place. [2023-08-29 03:46:56,018 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 404 selfloop transitions, 38 changer transitions 0/504 dead transitions. [2023-08-29 03:46:56,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 504 transitions, 6930 flow [2023-08-29 03:46:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:46:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:46:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4234 transitions. [2023-08-29 03:46:56,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-08-29 03:46:56,024 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4234 transitions. [2023-08-29 03:46:56,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4234 transitions. [2023-08-29 03:46:56,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:46:56,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4234 transitions. [2023-08-29 03:46:56,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 423.4) internal successors, (4234), 10 states have internal predecessors, (4234), 0 states have call successors, (0), 0 states 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 03:46:56,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:56,033 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:46:56,034 INFO L175 Difference]: Start difference. First operand has 172 places, 427 transitions, 5381 flow. Second operand 10 states and 4234 transitions. [2023-08-29 03:46:56,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 504 transitions, 6930 flow [2023-08-29 03:47:00,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 504 transitions, 6714 flow, removed 108 selfloop flow, removed 0 redundant places. [2023-08-29 03:47:01,002 INFO L231 Difference]: Finished difference. Result has 179 places, 425 transitions, 5227 flow [2023-08-29 03:47:01,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5151, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5227, PETRI_PLACES=179, PETRI_TRANSITIONS=425} [2023-08-29 03:47:01,002 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 38 predicate places. [2023-08-29 03:47:01,003 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 425 transitions, 5227 flow [2023-08-29 03:47:01,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 415.8181818181818) internal successors, (4574), 11 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states 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 03:47:01,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:47:01,004 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:47:01,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 03:47:01,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:47:01,209 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:47:01,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:47:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1734949736, now seen corresponding path program 1 times [2023-08-29 03:47:01,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:47:01,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739243351] [2023-08-29 03:47:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:47:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:47:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:47:01,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:47:01,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:47:01,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739243351] [2023-08-29 03:47:01,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739243351] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:47:01,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040042998] [2023-08-29 03:47:01,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:47:01,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:47:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:47:01,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:47:01,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 03:47:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:47:01,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 03:47:01,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:47:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:47:01,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:47:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:47:01,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040042998] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 03:47:01,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 03:47:01,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2023-08-29 03:47:01,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061602848] [2023-08-29 03:47:01,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:47:01,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:47:01,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:47:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:47:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:47:01,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 03:47:01,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 425 transitions, 5227 flow. Second operand has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states 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 03:47:01,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:47:01,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 03:47:01,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:47:12,582 INFO L130 PetriNetUnfolder]: 40447/71232 cut-off events. [2023-08-29 03:47:12,582 INFO L131 PetriNetUnfolder]: For 350175/361040 co-relation queries the response was YES. [2023-08-29 03:47:13,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263731 conditions, 71232 events. 40447/71232 cut-off events. For 350175/361040 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 660245 event pairs, 3812 based on Foata normal form. 698/64565 useless extension candidates. Maximal degree in co-relation 263690. Up to 43336 conditions per place. [2023-08-29 03:47:13,577 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 338 selfloop transitions, 32 changer transitions 15/460 dead transitions. [2023-08-29 03:47:13,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 460 transitions, 6155 flow [2023-08-29 03:47:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:47:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:47:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2662 transitions. [2023-08-29 03:47:13,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675096592904812 [2023-08-29 03:47:13,580 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2662 transitions. [2023-08-29 03:47:13,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2662 transitions. [2023-08-29 03:47:13,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:47:13,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2662 transitions. [2023-08-29 03:47:13,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 443.6666666666667) internal successors, (2662), 6 states have internal predecessors, (2662), 0 states have call successors, (0), 0 states 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 03:47:13,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:47:13,586 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states 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 03:47:13,586 INFO L175 Difference]: Start difference. First operand has 179 places, 425 transitions, 5227 flow. Second operand 6 states and 2662 transitions. [2023-08-29 03:47:13,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 460 transitions, 6155 flow [2023-08-29 03:47:14,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 460 transitions, 6077 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-29 03:47:14,889 INFO L231 Difference]: Finished difference. Result has 177 places, 409 transitions, 5079 flow [2023-08-29 03:47:14,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5035, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5079, PETRI_PLACES=177, PETRI_TRANSITIONS=409} [2023-08-29 03:47:14,889 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 36 predicate places. [2023-08-29 03:47:14,890 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 409 transitions, 5079 flow [2023-08-29 03:47:14,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states 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 03:47:14,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:47:14,890 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:47:14,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-29 03:47:15,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-29 03:47:15,095 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:47:15,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:47:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1752257351, now seen corresponding path program 1 times [2023-08-29 03:47:15,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:47:15,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956776133] [2023-08-29 03:47:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:47:15,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:47:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:47:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:47:16,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:47:16,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956776133] [2023-08-29 03:47:16,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956776133] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:47:16,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:47:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 03:47:16,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024889065] [2023-08-29 03:47:16,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:47:16,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 03:47:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:47:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 03:47:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-29 03:47:16,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 03:47:16,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 409 transitions, 5079 flow. Second operand has 8 states, 8 states have (on average 424.25) internal successors, (3394), 8 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states 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 03:47:16,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:47:16,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 03:47:16,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:47:29,502 INFO L130 PetriNetUnfolder]: 46242/79347 cut-off events. [2023-08-29 03:47:29,502 INFO L131 PetriNetUnfolder]: For 417319/436635 co-relation queries the response was YES. [2023-08-29 03:47:30,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296492 conditions, 79347 events. 46242/79347 cut-off events. For 417319/436635 co-relation queries the response was YES. Maximal size of possible extension queue 2249. Compared 732523 event pairs, 8202 based on Foata normal form. 1373/71942 useless extension candidates. Maximal degree in co-relation 296449. Up to 23686 conditions per place. [2023-08-29 03:47:30,597 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 475 selfloop transitions, 91 changer transitions 0/634 dead transitions. [2023-08-29 03:47:30,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 634 transitions, 8742 flow [2023-08-29 03:47:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 03:47:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 03:47:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3924 transitions. [2023-08-29 03:47:30,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594309799789252 [2023-08-29 03:47:30,603 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3924 transitions. [2023-08-29 03:47:30,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3924 transitions. [2023-08-29 03:47:30,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:47:30,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3924 transitions. [2023-08-29 03:47:30,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 436.0) internal successors, (3924), 9 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states 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 03:47:30,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 949.0) internal successors, (9490), 10 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states 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 03:47:30,614 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 949.0) internal successors, (9490), 10 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states 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 03:47:30,614 INFO L175 Difference]: Start difference. First operand has 177 places, 409 transitions, 5079 flow. Second operand 9 states and 3924 transitions. [2023-08-29 03:47:30,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 634 transitions, 8742 flow [2023-08-29 03:47:32,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 634 transitions, 8679 flow, removed 14 selfloop flow, removed 5 redundant places. [2023-08-29 03:47:32,231 INFO L231 Difference]: Finished difference. Result has 179 places, 421 transitions, 5539 flow [2023-08-29 03:47:32,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5033, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5539, PETRI_PLACES=179, PETRI_TRANSITIONS=421} [2023-08-29 03:47:32,231 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 38 predicate places. [2023-08-29 03:47:32,232 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 421 transitions, 5539 flow [2023-08-29 03:47:32,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 424.25) internal successors, (3394), 8 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states 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 03:47:32,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:47:32,232 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:47:32,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 03:47:32,233 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:47:32,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:47:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1305572275, now seen corresponding path program 2 times [2023-08-29 03:47:32,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:47:32,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244168504] [2023-08-29 03:47:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:47:32,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:47:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:47:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 03:47:33,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:47:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244168504] [2023-08-29 03:47:33,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244168504] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:47:33,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:47:33,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 03:47:33,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091948730] [2023-08-29 03:47:33,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:47:33,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 03:47:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:47:33,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 03:47:33,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-29 03:47:34,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 949 [2023-08-29 03:47:34,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 421 transitions, 5539 flow. Second operand has 9 states, 9 states have (on average 422.0) internal successors, (3798), 9 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states 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 03:47:34,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:47:34,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 949 [2023-08-29 03:47:34,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:47:47,046 INFO L130 PetriNetUnfolder]: 45794/79810 cut-off events. [2023-08-29 03:47:47,046 INFO L131 PetriNetUnfolder]: For 417920/433365 co-relation queries the response was YES. [2023-08-29 03:47:47,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298624 conditions, 79810 events. 45794/79810 cut-off events. For 417920/433365 co-relation queries the response was YES. Maximal size of possible extension queue 2346. Compared 751446 event pairs, 5118 based on Foata normal form. 1103/72364 useless extension candidates. Maximal degree in co-relation 298580. Up to 33769 conditions per place. [2023-08-29 03:47:48,286 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 297 selfloop transitions, 200 changer transitions 0/565 dead transitions. [2023-08-29 03:47:48,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 565 transitions, 7736 flow [2023-08-29 03:47:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 03:47:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 03:47:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4332 transitions. [2023-08-29 03:47:48,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564805057955743 [2023-08-29 03:47:48,290 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4332 transitions. [2023-08-29 03:47:48,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4332 transitions. [2023-08-29 03:47:48,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:47:48,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4332 transitions. [2023-08-29 03:47:48,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 433.2) internal successors, (4332), 10 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states 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 03:47:48,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:47:48,299 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states 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 03:47:48,299 INFO L175 Difference]: Start difference. First operand has 179 places, 421 transitions, 5539 flow. Second operand 10 states and 4332 transitions. [2023-08-29 03:47:48,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 565 transitions, 7736 flow [2023-08-29 03:47:49,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 565 transitions, 7701 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:47:49,741 INFO L231 Difference]: Finished difference. Result has 185 places, 436 transitions, 6342 flow [2023-08-29 03:47:49,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5498, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6342, PETRI_PLACES=185, PETRI_TRANSITIONS=436} [2023-08-29 03:47:49,742 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 44 predicate places. [2023-08-29 03:47:49,742 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 436 transitions, 6342 flow [2023-08-29 03:47:49,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 422.0) internal successors, (3798), 9 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states 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 03:47:49,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:47:49,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:47:49,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 03:47:49,743 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 03:47:49,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:47:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash 679886212, now seen corresponding path program 1 times [2023-08-29 03:47:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:47:49,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990582872] [2023-08-29 03:47:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:47:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:47:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:47:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:47:50,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:47:50,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990582872] [2023-08-29 03:47:50,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990582872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:47:50,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:47:50,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:47:50,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539887870] [2023-08-29 03:47:50,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:47:50,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:47:50,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:47:50,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:47:50,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:47:50,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 03:47:50,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 436 transitions, 6342 flow. Second operand has 6 states, 6 states have (on average 437.8333333333333) internal successors, (2627), 6 states have internal predecessors, (2627), 0 states have call successors, (0), 0 states 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 03:47:50,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:47:50,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 03:47:50,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand