./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.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-bad-three-array-sum-alt.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 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --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 03:40:32,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:40:32,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:40:32,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:40:32,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:40:32,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:40:32,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:40:32,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:40:32,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:40:32,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:40:32,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:40:32,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:40:32,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:40:32,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:40:32,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:40:32,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:40:32,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:40:32,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:40:32,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:40:32,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:40:32,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:40:32,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:40:32,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:40:32,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:40:32,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:40:32,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:40:32,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:40:32,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:40:32,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:40:32,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:40:32,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:40:32,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:40:32,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:40:32,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:40:32,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:40:32,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:40:32,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:40:32,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:40:32,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:40:32,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:40:32,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:40:32,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:40:32,187 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:40:32,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:40:32,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:40:32,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:40:32,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:40:32,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:40:32,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:40:32,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:40:32,190 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:40:32,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:40:32,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:40:32,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:40:32,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:40:32,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:40:32,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:40:32,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:40:32,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:40:32,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:40:32,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:40:32,194 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:40:32,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:40:32,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:40:32,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:40:32,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:40:32,451 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:40:32,451 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:40:32,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-08-29 03:40:33,471 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:40:33,677 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:40:33,678 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-08-29 03:40:33,688 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9131869de/f1f20cb68a364ec3977e179ce476375f/FLAG1a59929cf [2023-08-29 03:40:33,701 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9131869de/f1f20cb68a364ec3977e179ce476375f [2023-08-29 03:40:33,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:40:33,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:40:33,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:40:33,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:40:33,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:40:33,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124a7550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33, skipping insertion in model container [2023-08-29 03:40:33,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:40:33,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:40:33,870 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-bad-three-array-sum-alt.wvr.c[2412,2425] [2023-08-29 03:40:33,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:40:33,880 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:40:33,898 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-bad-three-array-sum-alt.wvr.c[2412,2425] [2023-08-29 03:40:33,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:40:33,911 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:40:33,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33 WrapperNode [2023-08-29 03:40:33,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:40:33,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:40:33,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:40:33,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:40:33,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,961 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 407 [2023-08-29 03:40:33,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:40:33,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:40:33,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:40:33,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:40:33,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:33,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,024 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:40:34,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:40:34,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:40:34,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:40:34,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (1/1) ... [2023-08-29 03:40:34,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:40:34,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:40:34,065 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 03:40:34,097 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 03:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:40:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:40:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:40:34,114 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 03:40:34,289 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:40:34,290 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:40:34,766 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:40:34,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:40:34,776 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 03:40:34,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:40:34 BoogieIcfgContainer [2023-08-29 03:40:34,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:40:34,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:40:34,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:40:34,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:40:34,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:40:33" (1/3) ... [2023-08-29 03:40:34,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a68ebd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:40:34, skipping insertion in model container [2023-08-29 03:40:34,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:40:33" (2/3) ... [2023-08-29 03:40:34,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a68ebd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:40:34, skipping insertion in model container [2023-08-29 03:40:34,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:40:34" (3/3) ... [2023-08-29 03:40:34,794 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2023-08-29 03:40:34,801 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:40:34,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:40:34,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-08-29 03:40:34,809 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:40:34,941 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:40:35,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 489 transitions, 1002 flow [2023-08-29 03:40:35,196 INFO L130 PetriNetUnfolder]: 29/486 cut-off events. [2023-08-29 03:40:35,196 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:40:35,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 486 events. 29/486 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 838 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 306. Up to 2 conditions per place. [2023-08-29 03:40:35,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 489 transitions, 1002 flow [2023-08-29 03:40:35,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 448 transitions, 914 flow [2023-08-29 03:40:35,221 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:40:35,243 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 448 transitions, 914 flow [2023-08-29 03:40:35,245 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 448 transitions, 914 flow [2023-08-29 03:40:35,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 432 places, 448 transitions, 914 flow [2023-08-29 03:40:35,318 INFO L130 PetriNetUnfolder]: 26/448 cut-off events. [2023-08-29 03:40:35,318 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:40:35,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 448 events. 26/448 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 749 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 306. Up to 2 conditions per place. [2023-08-29 03:40:35,339 INFO L119 LiptonReduction]: Number of co-enabled transitions 39116 [2023-08-29 03:40:43,587 INFO L134 LiptonReduction]: Checked pairs total: 140103 [2023-08-29 03:40:43,588 INFO L136 LiptonReduction]: Total number of compositions: 437 [2023-08-29 03:40:43,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:40:43,607 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;@10db5bdd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:40:43,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-08-29 03:40:43,609 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:40:43,609 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:40:43,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:43,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:40:43,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:43,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1790, now seen corresponding path program 1 times [2023-08-29 03:40:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143713396] [2023-08-29 03:40:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:43,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:43,692 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 03:40:43,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143713396] [2023-08-29 03:40:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143713396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:43,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:43,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:40:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35004397] [2023-08-29 03:40:43,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:43,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:40:43,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:40:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:40:43,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 926 [2023-08-29 03:40:43,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 278 flow. Second operand has 2 states, 2 states have (on average 459.5) internal successors, (919), 2 states have internal predecessors, (919), 0 states have call successors, (0), 0 states 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 03:40:43,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:43,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 926 [2023-08-29 03:40:43,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:44,340 INFO L130 PetriNetUnfolder]: 2525/5969 cut-off events. [2023-08-29 03:40:44,341 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2023-08-29 03:40:44,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9571 conditions, 5969 events. 2525/5969 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 50036 event pairs, 1770 based on Foata normal form. 1110/5893 useless extension candidates. Maximal degree in co-relation 8129. Up to 3451 conditions per place. [2023-08-29 03:40:44,371 INFO L137 encePairwiseOnDemand]: 900/926 looper letters, 37 selfloop transitions, 0 changer transitions 1/104 dead transitions. [2023-08-29 03:40:44,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 104 transitions, 302 flow [2023-08-29 03:40:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:40:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:40:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 982 transitions. [2023-08-29 03:40:44,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5302375809935205 [2023-08-29 03:40:44,387 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 982 transitions. [2023-08-29 03:40:44,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 982 transitions. [2023-08-29 03:40:44,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:44,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 982 transitions. [2023-08-29 03:40:44,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 491.0) internal successors, (982), 2 states have internal predecessors, (982), 0 states have call successors, (0), 0 states 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 03:40:44,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states 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 03:40:44,404 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states 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 03:40:44,406 INFO L175 Difference]: Start difference. First operand has 129 places, 130 transitions, 278 flow. Second operand 2 states and 982 transitions. [2023-08-29 03:40:44,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 104 transitions, 302 flow [2023-08-29 03:40:44,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 290 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:40:44,413 INFO L231 Difference]: Finished difference. Result has 103 places, 103 transitions, 211 flow [2023-08-29 03:40:44,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=211, PETRI_PLACES=103, PETRI_TRANSITIONS=103} [2023-08-29 03:40:44,417 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -26 predicate places. [2023-08-29 03:40:44,417 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 103 transitions, 211 flow [2023-08-29 03:40:44,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 459.5) internal successors, (919), 2 states have internal predecessors, (919), 0 states have call successors, (0), 0 states 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 03:40:44,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:44,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:40:44,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:40:44,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:44,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash 379810773, now seen corresponding path program 1 times [2023-08-29 03:40:44,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:44,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737517916] [2023-08-29 03:40:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:44,536 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 03:40:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737517916] [2023-08-29 03:40:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737517916] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:44,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:40:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328645086] [2023-08-29 03:40:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:44,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:40:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:40:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:40:44,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 926 [2023-08-29 03:40:44,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 103 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states 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 03:40:44,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:44,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 926 [2023-08-29 03:40:44,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:45,075 INFO L130 PetriNetUnfolder]: 3220/7296 cut-off events. [2023-08-29 03:40:45,075 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2023-08-29 03:40:45,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11934 conditions, 7296 events. 3220/7296 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 59839 event pairs, 2727 based on Foata normal form. 0/6229 useless extension candidates. Maximal degree in co-relation 11931. Up to 4585 conditions per place. [2023-08-29 03:40:45,138 INFO L137 encePairwiseOnDemand]: 922/926 looper letters, 39 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2023-08-29 03:40:45,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 100 transitions, 285 flow [2023-08-29 03:40:45,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:40:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:40:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1363 transitions. [2023-08-29 03:40:45,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4906407487401008 [2023-08-29 03:40:45,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1363 transitions. [2023-08-29 03:40:45,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1363 transitions. [2023-08-29 03:40:45,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:45,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1363 transitions. [2023-08-29 03:40:45,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states 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 03:40:45,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:45,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:45,149 INFO L175 Difference]: Start difference. First operand has 103 places, 103 transitions, 211 flow. Second operand 3 states and 1363 transitions. [2023-08-29 03:40:45,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 100 transitions, 285 flow [2023-08-29 03:40:45,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 100 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:40:45,151 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 207 flow [2023-08-29 03:40:45,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2023-08-29 03:40:45,151 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -28 predicate places. [2023-08-29 03:40:45,152 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 207 flow [2023-08-29 03:40:45,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states 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 03:40:45,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:45,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:40:45,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:40:45,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:45,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash -73657579, now seen corresponding path program 1 times [2023-08-29 03:40:45,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:45,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538801602] [2023-08-29 03:40:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:45,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:45,199 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 03:40:45,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538801602] [2023-08-29 03:40:45,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538801602] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:45,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:45,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:40:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771898128] [2023-08-29 03:40:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:45,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:40:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:40:45,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:40:45,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 926 [2023-08-29 03:40:45,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states 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 03:40:45,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:45,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 926 [2023-08-29 03:40:45,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:45,670 INFO L130 PetriNetUnfolder]: 3460/6994 cut-off events. [2023-08-29 03:40:45,670 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2023-08-29 03:40:45,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11805 conditions, 6994 events. 3460/6994 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 54329 event pairs, 943 based on Foata normal form. 0/5684 useless extension candidates. Maximal degree in co-relation 11801. Up to 4289 conditions per place. [2023-08-29 03:40:45,697 INFO L137 encePairwiseOnDemand]: 922/926 looper letters, 56 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2023-08-29 03:40:45,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 117 transitions, 361 flow [2023-08-29 03:40:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:40:45,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:40:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1416 transitions. [2023-08-29 03:40:45,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509719222462203 [2023-08-29 03:40:45,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1416 transitions. [2023-08-29 03:40:45,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1416 transitions. [2023-08-29 03:40:45,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:45,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1416 transitions. [2023-08-29 03:40:45,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.0) internal successors, (1416), 3 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states 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 03:40:45,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:45,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:45,709 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 207 flow. Second operand 3 states and 1416 transitions. [2023-08-29 03:40:45,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 117 transitions, 361 flow [2023-08-29 03:40:45,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 117 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:40:45,711 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 216 flow [2023-08-29 03:40:45,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2023-08-29 03:40:45,712 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -28 predicate places. [2023-08-29 03:40:45,712 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 216 flow [2023-08-29 03:40:45,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states 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 03:40:45,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:45,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:40:45,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:40:45,713 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:45,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1816994325, now seen corresponding path program 1 times [2023-08-29 03:40:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357158945] [2023-08-29 03:40:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:45,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:45,752 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 03:40:45,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:45,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357158945] [2023-08-29 03:40:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357158945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:40:45,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161273780] [2023-08-29 03:40:45,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:45,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:40:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:45,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:40:45,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:40:45,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 926 [2023-08-29 03:40:45,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 216 flow. Second operand has 3 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 03:40:45,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:45,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 926 [2023-08-29 03:40:45,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:46,365 INFO L130 PetriNetUnfolder]: 5054/10123 cut-off events. [2023-08-29 03:40:46,365 INFO L131 PetriNetUnfolder]: For 615/679 co-relation queries the response was YES. [2023-08-29 03:40:46,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17913 conditions, 10123 events. 5054/10123 cut-off events. For 615/679 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 82668 event pairs, 937 based on Foata normal form. 0/8533 useless extension candidates. Maximal degree in co-relation 17909. Up to 6042 conditions per place. [2023-08-29 03:40:46,394 INFO L137 encePairwiseOnDemand]: 922/926 looper letters, 63 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-08-29 03:40:46,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 120 transitions, 399 flow [2023-08-29 03:40:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:40:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:40:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1419 transitions. [2023-08-29 03:40:46,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5107991360691144 [2023-08-29 03:40:46,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1419 transitions. [2023-08-29 03:40:46,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1419 transitions. [2023-08-29 03:40:46,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:46,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1419 transitions. [2023-08-29 03:40:46,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states 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 03:40:46,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:46,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states 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 03:40:46,405 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 216 flow. Second operand 3 states and 1419 transitions. [2023-08-29 03:40:46,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 120 transitions, 399 flow [2023-08-29 03:40:46,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 120 transitions, 399 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:40:46,407 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 226 flow [2023-08-29 03:40:46,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2023-08-29 03:40:46,408 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -27 predicate places. [2023-08-29 03:40:46,408 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 226 flow [2023-08-29 03:40:46,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 03:40:46,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:46,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:40:46,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:40:46,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:46,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:46,409 INFO L85 PathProgramCache]: Analyzing trace with hash -165197782, now seen corresponding path program 1 times [2023-08-29 03:40:46,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:46,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385695064] [2023-08-29 03:40:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:46,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:40:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:46,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385695064] [2023-08-29 03:40:46,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385695064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:46,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:46,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:40:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704133646] [2023-08-29 03:40:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:46,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:40:46,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:40:46,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:40:46,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 926 [2023-08-29 03:40:46,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states 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 03:40:46,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:46,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 926 [2023-08-29 03:40:46,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:49,651 INFO L130 PetriNetUnfolder]: 24456/40319 cut-off events. [2023-08-29 03:40:49,651 INFO L131 PetriNetUnfolder]: For 1911/1911 co-relation queries the response was YES. [2023-08-29 03:40:49,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76077 conditions, 40319 events. 24456/40319 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 333404 event pairs, 6783 based on Foata normal form. 0/32631 useless extension candidates. Maximal degree in co-relation 76072. Up to 18098 conditions per place. [2023-08-29 03:40:49,846 INFO L137 encePairwiseOnDemand]: 916/926 looper letters, 135 selfloop transitions, 21 changer transitions 0/208 dead transitions. [2023-08-29 03:40:49,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 208 transitions, 796 flow [2023-08-29 03:40:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:40:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:40:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2751 transitions. [2023-08-29 03:40:49,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951403887688985 [2023-08-29 03:40:49,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2751 transitions. [2023-08-29 03:40:49,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2751 transitions. [2023-08-29 03:40:49,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:49,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2751 transitions. [2023-08-29 03:40:49,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 458.5) internal successors, (2751), 6 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states 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 03:40:49,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:40:49,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:40:49,866 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 226 flow. Second operand 6 states and 2751 transitions. [2023-08-29 03:40:49,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 208 transitions, 796 flow [2023-08-29 03:40:49,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 208 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:40:49,869 INFO L231 Difference]: Finished difference. Result has 112 places, 120 transitions, 368 flow [2023-08-29 03:40:49,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=368, PETRI_PLACES=112, PETRI_TRANSITIONS=120} [2023-08-29 03:40:49,870 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -17 predicate places. [2023-08-29 03:40:49,870 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 120 transitions, 368 flow [2023-08-29 03:40:49,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states 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 03:40:49,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:49,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:40:49,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:40:49,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:49,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:49,872 INFO L85 PathProgramCache]: Analyzing trace with hash 771699257, now seen corresponding path program 1 times [2023-08-29 03:40:49,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:49,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306082917] [2023-08-29 03:40:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:49,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:49,946 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 03:40:49,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:49,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306082917] [2023-08-29 03:40:49,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306082917] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:49,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:49,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 03:40:49,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282569257] [2023-08-29 03:40:49,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:49,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 03:40:49,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 03:40:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:40:50,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 926 [2023-08-29 03:40:50,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 120 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 443.6) internal successors, (2218), 5 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states 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 03:40:50,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:50,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 926 [2023-08-29 03:40:50,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:52,479 INFO L130 PetriNetUnfolder]: 13453/32163 cut-off events. [2023-08-29 03:40:52,479 INFO L131 PetriNetUnfolder]: For 2420/2709 co-relation queries the response was YES. [2023-08-29 03:40:52,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59493 conditions, 32163 events. 13453/32163 cut-off events. For 2420/2709 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 352120 event pairs, 7788 based on Foata normal form. 1/28066 useless extension candidates. Maximal degree in co-relation 59483. Up to 11800 conditions per place. [2023-08-29 03:40:52,619 INFO L137 encePairwiseOnDemand]: 917/926 looper letters, 99 selfloop transitions, 10 changer transitions 0/185 dead transitions. [2023-08-29 03:40:52,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 769 flow [2023-08-29 03:40:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 03:40:52,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 03:40:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2306 transitions. [2023-08-29 03:40:52,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4980561555075594 [2023-08-29 03:40:52,623 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2306 transitions. [2023-08-29 03:40:52,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2306 transitions. [2023-08-29 03:40:52,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:52,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2306 transitions. [2023-08-29 03:40:52,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 461.2) internal successors, (2306), 5 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states 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 03:40:52,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:40:52,632 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:40:52,632 INFO L175 Difference]: Start difference. First operand has 112 places, 120 transitions, 368 flow. Second operand 5 states and 2306 transitions. [2023-08-29 03:40:52,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 769 flow [2023-08-29 03:40:52,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 769 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:40:52,703 INFO L231 Difference]: Finished difference. Result has 119 places, 128 transitions, 436 flow [2023-08-29 03:40:52,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=436, PETRI_PLACES=119, PETRI_TRANSITIONS=128} [2023-08-29 03:40:52,704 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -10 predicate places. [2023-08-29 03:40:52,704 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 128 transitions, 436 flow [2023-08-29 03:40:52,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 443.6) internal successors, (2218), 5 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states 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 03:40:52,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:52,705 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 03:40:52,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:40:52,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:52,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:52,706 INFO L85 PathProgramCache]: Analyzing trace with hash 507551855, now seen corresponding path program 1 times [2023-08-29 03:40:52,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:52,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261220443] [2023-08-29 03:40:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:52,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:52,783 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 03:40:52,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:52,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261220443] [2023-08-29 03:40:52,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261220443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:52,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:52,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 03:40:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669269521] [2023-08-29 03:40:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:52,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 03:40:52,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:52,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 03:40:52,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:40:52,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 926 [2023-08-29 03:40:52,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 436 flow. Second operand has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states 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 03:40:52,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:52,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 926 [2023-08-29 03:40:52,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:40:55,120 INFO L130 PetriNetUnfolder]: 10446/25364 cut-off events. [2023-08-29 03:40:55,120 INFO L131 PetriNetUnfolder]: For 3125/3646 co-relation queries the response was YES. [2023-08-29 03:40:55,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48064 conditions, 25364 events. 10446/25364 cut-off events. For 3125/3646 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 270865 event pairs, 6205 based on Foata normal form. 266/23568 useless extension candidates. Maximal degree in co-relation 48050. Up to 11922 conditions per place. [2023-08-29 03:40:55,230 INFO L137 encePairwiseOnDemand]: 917/926 looper letters, 93 selfloop transitions, 10 changer transitions 0/180 dead transitions. [2023-08-29 03:40:55,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 180 transitions, 801 flow [2023-08-29 03:40:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 03:40:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 03:40:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2298 transitions. [2023-08-29 03:40:55,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49632829373650106 [2023-08-29 03:40:55,235 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2298 transitions. [2023-08-29 03:40:55,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2298 transitions. [2023-08-29 03:40:55,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:40:55,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2298 transitions. [2023-08-29 03:40:55,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 459.6) internal successors, (2298), 5 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states 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 03:40:55,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:40:55,244 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:40:55,244 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 436 flow. Second operand 5 states and 2298 transitions. [2023-08-29 03:40:55,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 180 transitions, 801 flow [2023-08-29 03:40:55,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 180 transitions, 801 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:40:55,287 INFO L231 Difference]: Finished difference. Result has 125 places, 129 transitions, 467 flow [2023-08-29 03:40:55,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=467, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2023-08-29 03:40:55,287 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -4 predicate places. [2023-08-29 03:40:55,288 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 467 flow [2023-08-29 03:40:55,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states 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 03:40:55,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:40:55,288 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 03:40:55,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:40:55,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:40:55,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:40:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 398163697, now seen corresponding path program 1 times [2023-08-29 03:40:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:40:55,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78775871] [2023-08-29 03:40:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:40:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:40:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:40:55,499 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 03:40:55,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:40:55,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78775871] [2023-08-29 03:40:55,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78775871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:40:55,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:40:55,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:40:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796027241] [2023-08-29 03:40:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:40:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:40:55,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:40:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:40:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:40:55,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 926 [2023-08-29 03:40:55,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 467 flow. Second operand has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states 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 03:40:55,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:40:55,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 926 [2023-08-29 03:40:55,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:00,019 INFO L130 PetriNetUnfolder]: 27121/51308 cut-off events. [2023-08-29 03:41:00,019 INFO L131 PetriNetUnfolder]: For 13767/14685 co-relation queries the response was YES. [2023-08-29 03:41:00,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108168 conditions, 51308 events. 27121/51308 cut-off events. For 13767/14685 co-relation queries the response was YES. Maximal size of possible extension queue 1530. Compared 502190 event pairs, 9201 based on Foata normal form. 390/48827 useless extension candidates. Maximal degree in co-relation 108151. Up to 27533 conditions per place. [2023-08-29 03:41:00,379 INFO L137 encePairwiseOnDemand]: 915/926 looper letters, 147 selfloop transitions, 86 changer transitions 0/290 dead transitions. [2023-08-29 03:41:00,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 290 transitions, 1567 flow [2023-08-29 03:41:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:41:00,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:41:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2742 transitions. [2023-08-29 03:41:00,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49352051835853133 [2023-08-29 03:41:00,385 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2742 transitions. [2023-08-29 03:41:00,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2742 transitions. [2023-08-29 03:41:00,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:00,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2742 transitions. [2023-08-29 03:41:00,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 457.0) internal successors, (2742), 6 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states 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 03:41:00,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:00,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:00,396 INFO L175 Difference]: Start difference. First operand has 125 places, 129 transitions, 467 flow. Second operand 6 states and 2742 transitions. [2023-08-29 03:41:00,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 290 transitions, 1567 flow [2023-08-29 03:41:00,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 290 transitions, 1552 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:41:00,492 INFO L231 Difference]: Finished difference. Result has 133 places, 214 transitions, 1306 flow [2023-08-29 03:41:00,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1306, PETRI_PLACES=133, PETRI_TRANSITIONS=214} [2023-08-29 03:41:00,493 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 4 predicate places. [2023-08-29 03:41:00,493 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 214 transitions, 1306 flow [2023-08-29 03:41:00,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states 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 03:41:00,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:00,494 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 03:41:00,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:41:00,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:00,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash -321899820, now seen corresponding path program 1 times [2023-08-29 03:41:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389444489] [2023-08-29 03:41:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:00,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:00,709 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 03:41:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389444489] [2023-08-29 03:41:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389444489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:00,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:00,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 03:41:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660394801] [2023-08-29 03:41:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:00,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 03:41:00,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 03:41:00,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:41:00,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 926 [2023-08-29 03:41:00,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 214 transitions, 1306 flow. Second operand has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states 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 03:41:00,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:00,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 926 [2023-08-29 03:41:00,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:04,359 INFO L130 PetriNetUnfolder]: 16745/37157 cut-off events. [2023-08-29 03:41:04,360 INFO L131 PetriNetUnfolder]: For 18206/19492 co-relation queries the response was YES. [2023-08-29 03:41:04,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83409 conditions, 37157 events. 16745/37157 cut-off events. For 18206/19492 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 392045 event pairs, 7711 based on Foata normal form. 346/35804 useless extension candidates. Maximal degree in co-relation 83388. Up to 19288 conditions per place. [2023-08-29 03:41:04,660 INFO L137 encePairwiseOnDemand]: 917/926 looper letters, 85 selfloop transitions, 10 changer transitions 0/236 dead transitions. [2023-08-29 03:41:04,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 236 transitions, 1549 flow [2023-08-29 03:41:04,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 03:41:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 03:41:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2278 transitions. [2023-08-29 03:41:04,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920086393088553 [2023-08-29 03:41:04,666 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2278 transitions. [2023-08-29 03:41:04,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2278 transitions. [2023-08-29 03:41:04,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:04,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2278 transitions. [2023-08-29 03:41:04,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 455.6) internal successors, (2278), 5 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states 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 03:41:04,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:41:04,677 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 926.0) internal successors, (5556), 6 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states 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 03:41:04,677 INFO L175 Difference]: Start difference. First operand has 133 places, 214 transitions, 1306 flow. Second operand 5 states and 2278 transitions. [2023-08-29 03:41:04,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 236 transitions, 1549 flow [2023-08-29 03:41:04,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 236 transitions, 1549 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:41:04,769 INFO L231 Difference]: Finished difference. Result has 139 places, 215 transitions, 1337 flow [2023-08-29 03:41:04,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1337, PETRI_PLACES=139, PETRI_TRANSITIONS=215} [2023-08-29 03:41:04,770 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 10 predicate places. [2023-08-29 03:41:04,770 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 215 transitions, 1337 flow [2023-08-29 03:41:04,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states 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 03:41:04,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:04,771 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] [2023-08-29 03:41:04,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:41:04,772 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:04,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:04,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1977835737, now seen corresponding path program 1 times [2023-08-29 03:41:04,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:04,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866859332] [2023-08-29 03:41:04,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:04,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:05,013 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 03:41:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:05,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866859332] [2023-08-29 03:41:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866859332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:41:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723499850] [2023-08-29 03:41:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:05,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:41:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:41:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:41:05,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 926 [2023-08-29 03:41:05,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 215 transitions, 1337 flow. Second operand has 6 states, 6 states have (on average 435.8333333333333) internal successors, (2615), 6 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states 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 03:41:05,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:05,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 926 [2023-08-29 03:41:05,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:14,010 INFO L130 PetriNetUnfolder]: 45767/84992 cut-off events. [2023-08-29 03:41:14,010 INFO L131 PetriNetUnfolder]: For 72484/76182 co-relation queries the response was YES. [2023-08-29 03:41:14,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211413 conditions, 84992 events. 45767/84992 cut-off events. For 72484/76182 co-relation queries the response was YES. Maximal size of possible extension queue 2400. Compared 854992 event pairs, 11624 based on Foata normal form. 1004/82491 useless extension candidates. Maximal degree in co-relation 211389. Up to 45030 conditions per place. [2023-08-29 03:41:14,796 INFO L137 encePairwiseOnDemand]: 915/926 looper letters, 249 selfloop transitions, 406 changer transitions 0/716 dead transitions. [2023-08-29 03:41:14,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 716 transitions, 6641 flow [2023-08-29 03:41:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:41:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:41:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2746 transitions. [2023-08-29 03:41:14,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49424046076313893 [2023-08-29 03:41:14,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2746 transitions. [2023-08-29 03:41:14,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2746 transitions. [2023-08-29 03:41:14,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:14,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2746 transitions. [2023-08-29 03:41:14,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 457.6666666666667) internal successors, (2746), 6 states have internal predecessors, (2746), 0 states have call successors, (0), 0 states 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 03:41:14,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:14,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:14,812 INFO L175 Difference]: Start difference. First operand has 139 places, 215 transitions, 1337 flow. Second operand 6 states and 2746 transitions. [2023-08-29 03:41:14,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 716 transitions, 6641 flow [2023-08-29 03:41:15,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 716 transitions, 6626 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:41:15,016 INFO L231 Difference]: Finished difference. Result has 147 places, 620 transitions, 6848 flow [2023-08-29 03:41:15,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6848, PETRI_PLACES=147, PETRI_TRANSITIONS=620} [2023-08-29 03:41:15,017 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 18 predicate places. [2023-08-29 03:41:15,018 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 620 transitions, 6848 flow [2023-08-29 03:41:15,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 435.8333333333333) internal successors, (2615), 6 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states 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 03:41:15,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:15,019 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 03:41:15,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:41:15,019 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:15,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash -59503844, now seen corresponding path program 1 times [2023-08-29 03:41:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783817197] [2023-08-29 03:41:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:15,392 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 03:41:15,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:15,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783817197] [2023-08-29 03:41:15,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783817197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:15,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:41:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262112119] [2023-08-29 03:41:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:15,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:41:15,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:15,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:41:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:41:15,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 926 [2023-08-29 03:41:15,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 620 transitions, 6848 flow. Second operand has 6 states, 6 states have (on average 436.3333333333333) internal successors, (2618), 6 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states 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 03:41:15,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:15,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 926 [2023-08-29 03:41:15,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:25,193 INFO L130 PetriNetUnfolder]: 40013/75482 cut-off events. [2023-08-29 03:41:25,193 INFO L131 PetriNetUnfolder]: For 118149/123810 co-relation queries the response was YES. [2023-08-29 03:41:25,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217011 conditions, 75482 events. 40013/75482 cut-off events. For 118149/123810 co-relation queries the response was YES. Maximal size of possible extension queue 2333. Compared 764530 event pairs, 8363 based on Foata normal form. 2073/76455 useless extension candidates. Maximal degree in co-relation 216983. Up to 33484 conditions per place. [2023-08-29 03:41:26,022 INFO L137 encePairwiseOnDemand]: 920/926 looper letters, 498 selfloop transitions, 129 changer transitions 0/691 dead transitions. [2023-08-29 03:41:26,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 691 transitions, 8372 flow [2023-08-29 03:41:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:41:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:41:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2700 transitions. [2023-08-29 03:41:26,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48596112311015116 [2023-08-29 03:41:26,039 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2700 transitions. [2023-08-29 03:41:26,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2700 transitions. [2023-08-29 03:41:26,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:26,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2700 transitions. [2023-08-29 03:41:26,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 450.0) internal successors, (2700), 6 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states 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 03:41:26,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:26,049 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:26,049 INFO L175 Difference]: Start difference. First operand has 147 places, 620 transitions, 6848 flow. Second operand 6 states and 2700 transitions. [2023-08-29 03:41:26,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 691 transitions, 8372 flow [2023-08-29 03:41:26,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 691 transitions, 8372 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:41:26,301 INFO L231 Difference]: Finished difference. Result has 151 places, 619 transitions, 7104 flow [2023-08-29 03:41:26,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=6846, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7104, PETRI_PLACES=151, PETRI_TRANSITIONS=619} [2023-08-29 03:41:26,301 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 22 predicate places. [2023-08-29 03:41:26,302 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 619 transitions, 7104 flow [2023-08-29 03:41:26,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.3333333333333) internal successors, (2618), 6 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states 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 03:41:26,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:26,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:41:26,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:41:26,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:26,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1993113951, now seen corresponding path program 1 times [2023-08-29 03:41:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:26,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610143486] [2023-08-29 03:41:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:26,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:26,520 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 03:41:26,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:26,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610143486] [2023-08-29 03:41:26,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610143486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:26,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:41:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365199969] [2023-08-29 03:41:26,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:26,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:41:26,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:41:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:41:26,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 926 [2023-08-29 03:41:26,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 619 transitions, 7104 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 03:41:26,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:26,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 926 [2023-08-29 03:41:26,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:36,127 INFO L130 PetriNetUnfolder]: 38240/76687 cut-off events. [2023-08-29 03:41:36,128 INFO L131 PetriNetUnfolder]: For 134054/138752 co-relation queries the response was YES. [2023-08-29 03:41:36,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222805 conditions, 76687 events. 38240/76687 cut-off events. For 134054/138752 co-relation queries the response was YES. Maximal size of possible extension queue 2510. Compared 822407 event pairs, 11787 based on Foata normal form. 1579/76891 useless extension candidates. Maximal degree in co-relation 222776. Up to 45803 conditions per place. [2023-08-29 03:41:37,325 INFO L137 encePairwiseOnDemand]: 916/926 looper letters, 624 selfloop transitions, 165 changer transitions 0/853 dead transitions. [2023-08-29 03:41:37,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 853 transitions, 10699 flow [2023-08-29 03:41:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:41:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:41:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2729 transitions. [2023-08-29 03:41:37,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49118070554355653 [2023-08-29 03:41:37,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2729 transitions. [2023-08-29 03:41:37,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2729 transitions. [2023-08-29 03:41:37,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:37,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2729 transitions. [2023-08-29 03:41:37,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 454.8333333333333) internal successors, (2729), 6 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states 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 03:41:37,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:37,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:37,339 INFO L175 Difference]: Start difference. First operand has 151 places, 619 transitions, 7104 flow. Second operand 6 states and 2729 transitions. [2023-08-29 03:41:37,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 853 transitions, 10699 flow [2023-08-29 03:41:37,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 853 transitions, 10353 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:41:37,631 INFO L231 Difference]: Finished difference. Result has 156 places, 783 transitions, 9300 flow [2023-08-29 03:41:37,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=6846, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9300, PETRI_PLACES=156, PETRI_TRANSITIONS=783} [2023-08-29 03:41:37,632 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 27 predicate places. [2023-08-29 03:41:37,632 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 783 transitions, 9300 flow [2023-08-29 03:41:37,633 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 03:41:37,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:37,633 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] [2023-08-29 03:41:37,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:41:37,633 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:37,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1699272850, now seen corresponding path program 1 times [2023-08-29 03:41:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387156501] [2023-08-29 03:41:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:37,842 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 03:41:37,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:37,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387156501] [2023-08-29 03:41:37,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387156501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:37,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:37,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:41:37,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415248835] [2023-08-29 03:41:37,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:37,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:41:37,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:37,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:41:37,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:41:38,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 926 [2023-08-29 03:41:38,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 783 transitions, 9300 flow. Second operand has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states 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 03:41:38,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:38,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 926 [2023-08-29 03:41:38,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:41:48,827 INFO L130 PetriNetUnfolder]: 39636/75930 cut-off events. [2023-08-29 03:41:48,828 INFO L131 PetriNetUnfolder]: For 144855/150355 co-relation queries the response was YES. [2023-08-29 03:41:49,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228154 conditions, 75930 events. 39636/75930 cut-off events. For 144855/150355 co-relation queries the response was YES. Maximal size of possible extension queue 2421. Compared 782427 event pairs, 9443 based on Foata normal form. 1891/76715 useless extension candidates. Maximal degree in co-relation 228121. Up to 37776 conditions per place. [2023-08-29 03:41:49,876 INFO L137 encePairwiseOnDemand]: 920/926 looper letters, 617 selfloop transitions, 169 changer transitions 0/854 dead transitions. [2023-08-29 03:41:49,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 854 transitions, 11142 flow [2023-08-29 03:41:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:41:49,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:41:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2699 transitions. [2023-08-29 03:41:49,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48578113750899926 [2023-08-29 03:41:49,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2699 transitions. [2023-08-29 03:41:49,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2699 transitions. [2023-08-29 03:41:49,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:41:49,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2699 transitions. [2023-08-29 03:41:49,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 449.8333333333333) internal successors, (2699), 6 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states 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 03:41:49,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:49,897 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:41:49,897 INFO L175 Difference]: Start difference. First operand has 156 places, 783 transitions, 9300 flow. Second operand 6 states and 2699 transitions. [2023-08-29 03:41:49,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 854 transitions, 11142 flow [2023-08-29 03:41:50,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 854 transitions, 10822 flow, removed 160 selfloop flow, removed 0 redundant places. [2023-08-29 03:41:50,281 INFO L231 Difference]: Finished difference. Result has 160 places, 782 transitions, 9316 flow [2023-08-29 03:41:50,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=8978, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=782, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=613, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9316, PETRI_PLACES=160, PETRI_TRANSITIONS=782} [2023-08-29 03:41:50,283 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 31 predicate places. [2023-08-29 03:41:50,283 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 782 transitions, 9316 flow [2023-08-29 03:41:50,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states 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 03:41:50,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:41:50,284 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] [2023-08-29 03:41:50,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:41:50,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 03:41:50,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:41:50,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1302633789, now seen corresponding path program 1 times [2023-08-29 03:41:50,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:41:50,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940352674] [2023-08-29 03:41:50,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:41:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:41:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:41:50,563 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 03:41:50,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:41:50,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940352674] [2023-08-29 03:41:50,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940352674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:41:50,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:41:50,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:41:50,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704337624] [2023-08-29 03:41:50,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:41:50,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:41:50,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:41:50,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:41:50,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:41:50,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 926 [2023-08-29 03:41:50,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 782 transitions, 9316 flow. Second operand has 6 states, 6 states have (on average 407.0) internal successors, (2442), 6 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states 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 03:41:50,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:41:50,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 926 [2023-08-29 03:41:50,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:42:34,361 INFO L130 PetriNetUnfolder]: 207293/305954 cut-off events. [2023-08-29 03:42:34,362 INFO L131 PetriNetUnfolder]: For 435112/443620 co-relation queries the response was YES. [2023-08-29 03:42:36,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950689 conditions, 305954 events. 207293/305954 cut-off events. For 435112/443620 co-relation queries the response was YES. Maximal size of possible extension queue 4923. Compared 2482422 event pairs, 92012 based on Foata normal form. 93/302267 useless extension candidates. Maximal degree in co-relation 950655. Up to 263380 conditions per place. [2023-08-29 03:42:37,641 INFO L137 encePairwiseOnDemand]: 899/926 looper letters, 654 selfloop transitions, 289 changer transitions 0/972 dead transitions. [2023-08-29 03:42:37,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 972 transitions, 12200 flow [2023-08-29 03:42:37,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:42:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:42:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2625 transitions. [2023-08-29 03:42:37,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4724622030237581 [2023-08-29 03:42:37,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2625 transitions. [2023-08-29 03:42:37,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2625 transitions. [2023-08-29 03:42:37,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:42:37,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2625 transitions. [2023-08-29 03:42:37,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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 03:42:37,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:42:37,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states 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 03:42:37,653 INFO L175 Difference]: Start difference. First operand has 160 places, 782 transitions, 9316 flow. Second operand 6 states and 2625 transitions. [2023-08-29 03:42:37,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 972 transitions, 12200 flow