./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:29:27,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:29:27,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:29:27,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:29:27,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:29:27,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:29:27,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:29:27,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:29:27,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:29:27,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:29:27,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:29:27,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:29:27,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:29:27,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:29:27,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:29:27,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:29:27,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:29:27,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:29:27,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:29:27,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:29:27,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:29:27,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:29:27,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:29:27,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:29:27,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:29:27,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:29:27,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:29:27,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:29:27,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:29:27,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:29:27,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:29:27,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:29:27,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:29:27,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:29:27,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:29:27,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:29:27,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:29:27,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:29:27,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:29:27,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:29:27,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:29:27,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:29:27,122 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:29:27,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:29:27,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:29:27,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:29:27,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:29:27,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:29:27,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:29:27,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:29:27,125 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:29:27,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:29:27,126 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:29:27,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:29:27,127 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:29:27,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:29:27,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:29:27,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:29:27,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:29:27,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:29:27,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:29:27,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:29:27,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:29:27,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:29:27,130 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:29:27,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:29:27,130 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:29:27,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:29:27,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:29:27,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:29:27,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:29:27,395 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:29:27,395 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:29:27,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-31 21:29:28,320 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:29:28,497 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:29:28,498 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-31 21:29:28,504 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a836c29/ddef6a44c77c4d80b25081fa1f6bdaad/FLAG098549b8b [2023-08-31 21:29:28,878 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a836c29/ddef6a44c77c4d80b25081fa1f6bdaad [2023-08-31 21:29:28,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:29:28,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:29:28,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:29:28,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:29:28,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:29:28,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:29:28" (1/1) ... [2023-08-31 21:29:28,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ab0eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:28, skipping insertion in model container [2023-08-31 21:29:28,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:29:28" (1/1) ... [2023-08-31 21:29:28,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:29:28,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:29:29,045 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/chl-chromosome-trans.wvr.c[3034,3047] [2023-08-31 21:29:29,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:29:29,063 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:29:29,095 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/chl-chromosome-trans.wvr.c[3034,3047] [2023-08-31 21:29:29,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:29:29,128 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:29:29,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29 WrapperNode [2023-08-31 21:29:29,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:29:29,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:29:29,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:29:29,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:29:29,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,190 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 465 [2023-08-31 21:29:29,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:29:29,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:29:29,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:29:29,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:29:29,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:29:29,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:29:29,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:29:29,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:29:29,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (1/1) ... [2023-08-31 21:29:29,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:29:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:29,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:29:29,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:29:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:29:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:29:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:29:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:29:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:29:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:29:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:29:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:29:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:29:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:29:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:29:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:29:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:29:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:29:29,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:29:29,301 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:29:29,420 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:29:29,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:29:30,063 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:29:30,072 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:29:30,072 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 21:29:30,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:30 BoogieIcfgContainer [2023-08-31 21:29:30,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:29:30,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:29:30,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:29:30,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:29:30,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:29:28" (1/3) ... [2023-08-31 21:29:30,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f864e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:29:30, skipping insertion in model container [2023-08-31 21:29:30,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:29" (2/3) ... [2023-08-31 21:29:30,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f864e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:29:30, skipping insertion in model container [2023-08-31 21:29:30,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:30" (3/3) ... [2023-08-31 21:29:30,097 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-31 21:29:30,109 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:29:30,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:29:30,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-08-31 21:29:30,126 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:29:30,224 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:29:30,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 557 transitions, 1138 flow [2023-08-31 21:29:30,453 INFO L130 PetriNetUnfolder]: 33/554 cut-off events. [2023-08-31 21:29:30,453 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:29:30,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 554 events. 33/554 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1241 event pairs, 0 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 398. Up to 2 conditions per place. [2023-08-31 21:29:30,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 557 transitions, 1138 flow [2023-08-31 21:29:30,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 512 places, 533 transitions, 1084 flow [2023-08-31 21:29:30,477 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:29:30,492 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 533 transitions, 1084 flow [2023-08-31 21:29:30,498 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 533 transitions, 1084 flow [2023-08-31 21:29:30,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 512 places, 533 transitions, 1084 flow [2023-08-31 21:29:30,564 INFO L130 PetriNetUnfolder]: 31/533 cut-off events. [2023-08-31 21:29:30,564 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:29:30,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 533 events. 31/533 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1231 event pairs, 0 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 398. Up to 2 conditions per place. [2023-08-31 21:29:30,586 INFO L119 LiptonReduction]: Number of co-enabled transitions 67830 [2023-08-31 21:29:39,435 INFO L134 LiptonReduction]: Checked pairs total: 213738 [2023-08-31 21:29:39,435 INFO L136 LiptonReduction]: Total number of compositions: 539 [2023-08-31 21:29:39,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:29:39,455 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;@2c480bf0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:29:39,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-08-31 21:29:39,457 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-31 21:29:39,457 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:29:39,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:39,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-31 21:29:39,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:39,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 67480, now seen corresponding path program 1 times [2023-08-31 21:29:39,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:39,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872311189] [2023-08-31 21:29:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:39,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:39,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:39,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872311189] [2023-08-31 21:29:39,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872311189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:39,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:39,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 21:29:39,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596385367] [2023-08-31 21:29:39,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:39,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:29:39,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:29:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:29:39,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 1096 [2023-08-31 21:29:39,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 139 transitions, 296 flow. Second operand has 2 states, 2 states have (on average 529.0) internal successors, (1058), 2 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:39,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:39,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 1096 [2023-08-31 21:29:39,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:40,151 INFO L130 PetriNetUnfolder]: 1808/5291 cut-off events. [2023-08-31 21:29:40,152 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-08-31 21:29:40,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8024 conditions, 5291 events. 1808/5291 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 49419 event pairs, 1485 based on Foata normal form. 149/4486 useless extension candidates. Maximal degree in co-relation 6878. Up to 2586 conditions per place. [2023-08-31 21:29:40,177 INFO L137 encePairwiseOnDemand]: 1069/1096 looper letters, 37 selfloop transitions, 0 changer transitions 1/112 dead transitions. [2023-08-31 21:29:40,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 318 flow [2023-08-31 21:29:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:29:40,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:29:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1121 transitions. [2023-08-31 21:29:40,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.511405109489051 [2023-08-31 21:29:40,191 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1121 transitions. [2023-08-31 21:29:40,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1121 transitions. [2023-08-31 21:29:40,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:40,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1121 transitions. [2023-08-31 21:29:40,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 560.5) internal successors, (1121), 2 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,207 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,208 INFO L175 Difference]: Start difference. First operand has 143 places, 139 transitions, 296 flow. Second operand 2 states and 1121 transitions. [2023-08-31 21:29:40,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 318 flow [2023-08-31 21:29:40,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 112 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:29:40,215 INFO L231 Difference]: Finished difference. Result has 111 places, 111 transitions, 227 flow [2023-08-31 21:29:40,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=227, PETRI_PLACES=111, PETRI_TRANSITIONS=111} [2023-08-31 21:29:40,220 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -32 predicate places. [2023-08-31 21:29:40,221 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 111 transitions, 227 flow [2023-08-31 21:29:40,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 529.0) internal successors, (1058), 2 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:40,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:40,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:29:40,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:40,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1211754961, now seen corresponding path program 1 times [2023-08-31 21:29:40,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:40,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131385936] [2023-08-31 21:29:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:40,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131385936] [2023-08-31 21:29:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131385936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:40,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:40,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:40,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448305512] [2023-08-31 21:29:40,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:40,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:40,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:40,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:40,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:40,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:40,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:40,809 INFO L130 PetriNetUnfolder]: 2310/5451 cut-off events. [2023-08-31 21:29:40,809 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-08-31 21:29:40,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8798 conditions, 5451 events. 2310/5451 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 44777 event pairs, 607 based on Foata normal form. 0/4509 useless extension candidates. Maximal degree in co-relation 8795. Up to 3242 conditions per place. [2023-08-31 21:29:40,843 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 50 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-08-31 21:29:40,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 122 transitions, 355 flow [2023-08-31 21:29:40,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:40,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2023-08-31 21:29:40,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49178832116788324 [2023-08-31 21:29:40,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1617 transitions. [2023-08-31 21:29:40,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1617 transitions. [2023-08-31 21:29:40,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:40,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1617 transitions. [2023-08-31 21:29:40,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.0) internal successors, (1617), 3 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,857 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 227 flow. Second operand 3 states and 1617 transitions. [2023-08-31 21:29:40,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 122 transitions, 355 flow [2023-08-31 21:29:40,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 122 transitions, 355 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:40,860 INFO L231 Difference]: Finished difference. Result has 111 places, 111 transitions, 237 flow [2023-08-31 21:29:40,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=111, PETRI_TRANSITIONS=111} [2023-08-31 21:29:40,861 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -32 predicate places. [2023-08-31 21:29:40,861 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 111 transitions, 237 flow [2023-08-31 21:29:40,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:40,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:40,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:40,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:29:40,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:40,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:40,863 INFO L85 PathProgramCache]: Analyzing trace with hash -559794908, now seen corresponding path program 1 times [2023-08-31 21:29:40,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:40,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99314604] [2023-08-31 21:29:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:40,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:40,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:40,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99314604] [2023-08-31 21:29:40,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99314604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:40,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:40,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:29:40,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839180233] [2023-08-31 21:29:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:40,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:40,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:41,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 516 out of 1096 [2023-08-31 21:29:41,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 518.3333333333334) internal successors, (1555), 3 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:41,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 516 of 1096 [2023-08-31 21:29:41,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:41,509 INFO L130 PetriNetUnfolder]: 1948/5770 cut-off events. [2023-08-31 21:29:41,509 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-08-31 21:29:41,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8642 conditions, 5770 events. 1948/5770 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 54954 event pairs, 1597 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 8638. Up to 2807 conditions per place. [2023-08-31 21:29:41,532 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 34 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2023-08-31 21:29:41,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 114 transitions, 323 flow [2023-08-31 21:29:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:41,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1591 transitions. [2023-08-31 21:29:41,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4838807785888078 [2023-08-31 21:29:41,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1591 transitions. [2023-08-31 21:29:41,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1591 transitions. [2023-08-31 21:29:41,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:41,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1591 transitions. [2023-08-31 21:29:41,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,545 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 237 flow. Second operand 3 states and 1591 transitions. [2023-08-31 21:29:41,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 114 transitions, 323 flow [2023-08-31 21:29:41,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 114 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:41,547 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 269 flow [2023-08-31 21:29:41,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2023-08-31 21:29:41,548 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -29 predicate places. [2023-08-31 21:29:41,548 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 269 flow [2023-08-31 21:29:41,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 518.3333333333334) internal successors, (1555), 3 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:41,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:29:41,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:41,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 914489014, now seen corresponding path program 1 times [2023-08-31 21:29:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940972981] [2023-08-31 21:29:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:29:41,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940972981] [2023-08-31 21:29:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940972981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:41,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:41,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474908250] [2023-08-31 21:29:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:41,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:41,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:41,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:41,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:41,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:41,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:41,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:41,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:42,087 INFO L130 PetriNetUnfolder]: 2266/6044 cut-off events. [2023-08-31 21:29:42,088 INFO L131 PetriNetUnfolder]: For 64/85 co-relation queries the response was YES. [2023-08-31 21:29:42,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9385 conditions, 6044 events. 2266/6044 cut-off events. For 64/85 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 54370 event pairs, 1160 based on Foata normal form. 1/5010 useless extension candidates. Maximal degree in co-relation 9379. Up to 3156 conditions per place. [2023-08-31 21:29:42,112 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 55 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2023-08-31 21:29:42,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 128 transitions, 413 flow [2023-08-31 21:29:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2023-08-31 21:29:42,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49239659367396593 [2023-08-31 21:29:42,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1619 transitions. [2023-08-31 21:29:42,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1619 transitions. [2023-08-31 21:29:42,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:42,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1619 transitions. [2023-08-31 21:29:42,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.6666666666666) internal successors, (1619), 3 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,125 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 269 flow. Second operand 3 states and 1619 transitions. [2023-08-31 21:29:42,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 128 transitions, 413 flow [2023-08-31 21:29:42,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 128 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:29:42,127 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 273 flow [2023-08-31 21:29:42,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2023-08-31 21:29:42,128 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -29 predicate places. [2023-08-31 21:29:42,128 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 273 flow [2023-08-31 21:29:42,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:42,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:42,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:29:42,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:42,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:42,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1643595887, now seen corresponding path program 1 times [2023-08-31 21:29:42,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:42,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646371519] [2023-08-31 21:29:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:42,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:29:42,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:42,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646371519] [2023-08-31 21:29:42,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646371519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:42,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:42,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:42,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198884045] [2023-08-31 21:29:42,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:42,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:42,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:42,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:42,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:42,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:42,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:42,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:42,780 INFO L130 PetriNetUnfolder]: 3260/9013 cut-off events. [2023-08-31 21:29:42,780 INFO L131 PetriNetUnfolder]: For 238/253 co-relation queries the response was YES. [2023-08-31 21:29:42,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13983 conditions, 9013 events. 3260/9013 cut-off events. For 238/253 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 89325 event pairs, 889 based on Foata normal form. 2/7565 useless extension candidates. Maximal degree in co-relation 13977. Up to 3112 conditions per place. [2023-08-31 21:29:42,833 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 66 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-08-31 21:29:42,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 138 transitions, 466 flow [2023-08-31 21:29:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1628 transitions. [2023-08-31 21:29:42,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951338199513382 [2023-08-31 21:29:42,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1628 transitions. [2023-08-31 21:29:42,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1628 transitions. [2023-08-31 21:29:42,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:42,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1628 transitions. [2023-08-31 21:29:42,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 542.6666666666666) internal successors, (1628), 3 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,847 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 273 flow. Second operand 3 states and 1628 transitions. [2023-08-31 21:29:42,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 138 transitions, 466 flow [2023-08-31 21:29:42,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 138 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:42,850 INFO L231 Difference]: Finished difference. Result has 115 places, 114 transitions, 283 flow [2023-08-31 21:29:42,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=115, PETRI_TRANSITIONS=114} [2023-08-31 21:29:42,852 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -28 predicate places. [2023-08-31 21:29:42,852 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 114 transitions, 283 flow [2023-08-31 21:29:42,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:42,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:42,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:29:42,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:42,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:42,854 INFO L85 PathProgramCache]: Analyzing trace with hash -98641260, now seen corresponding path program 1 times [2023-08-31 21:29:42,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:42,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754848227] [2023-08-31 21:29:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:42,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:29:42,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754848227] [2023-08-31 21:29:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754848227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:42,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:42,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302442784] [2023-08-31 21:29:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:42,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:42,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:42,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:42,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 114 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:42,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:42,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:42,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:43,422 INFO L130 PetriNetUnfolder]: 2952/7248 cut-off events. [2023-08-31 21:29:43,422 INFO L131 PetriNetUnfolder]: For 431/478 co-relation queries the response was YES. [2023-08-31 21:29:43,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12369 conditions, 7248 events. 2952/7248 cut-off events. For 431/478 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 62316 event pairs, 603 based on Foata normal form. 5/6329 useless extension candidates. Maximal degree in co-relation 12362. Up to 3808 conditions per place. [2023-08-31 21:29:43,452 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 58 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2023-08-31 21:29:43,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 129 transitions, 445 flow [2023-08-31 21:29:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2023-08-31 21:29:43,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49178832116788324 [2023-08-31 21:29:43,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1617 transitions. [2023-08-31 21:29:43,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1617 transitions. [2023-08-31 21:29:43,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:43,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1617 transitions. [2023-08-31 21:29:43,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.0) internal successors, (1617), 3 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:43,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:43,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:43,462 INFO L175 Difference]: Start difference. First operand has 115 places, 114 transitions, 283 flow. Second operand 3 states and 1617 transitions. [2023-08-31 21:29:43,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 129 transitions, 445 flow [2023-08-31 21:29:43,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 129 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:43,465 INFO L231 Difference]: Finished difference. Result has 116 places, 114 transitions, 293 flow [2023-08-31 21:29:43,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=116, PETRI_TRANSITIONS=114} [2023-08-31 21:29:43,465 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -27 predicate places. [2023-08-31 21:29:43,465 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 114 transitions, 293 flow [2023-08-31 21:29:43,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:43,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:43,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:43,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:29:43,467 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:43,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -304310130, now seen corresponding path program 1 times [2023-08-31 21:29:43,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775763777] [2023-08-31 21:29:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:29:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775763777] [2023-08-31 21:29:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775763777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372765450] [2023-08-31 21:29:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:43,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:43,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:43,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:43,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:43,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:43,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 114 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:43,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:43,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:43,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:44,505 INFO L130 PetriNetUnfolder]: 5331/14282 cut-off events. [2023-08-31 21:29:44,505 INFO L131 PetriNetUnfolder]: For 1176/1191 co-relation queries the response was YES. [2023-08-31 21:29:44,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23941 conditions, 14282 events. 5331/14282 cut-off events. For 1176/1191 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 146203 event pairs, 1526 based on Foata normal form. 0/12835 useless extension candidates. Maximal degree in co-relation 23933. Up to 4744 conditions per place. [2023-08-31 21:29:44,576 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 78 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-08-31 21:29:44,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 144 transitions, 539 flow [2023-08-31 21:29:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1633 transitions. [2023-08-31 21:29:44,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49665450121654503 [2023-08-31 21:29:44,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1633 transitions. [2023-08-31 21:29:44,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1633 transitions. [2023-08-31 21:29:44,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:44,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1633 transitions. [2023-08-31 21:29:44,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:44,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:44,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:44,587 INFO L175 Difference]: Start difference. First operand has 116 places, 114 transitions, 293 flow. Second operand 3 states and 1633 transitions. [2023-08-31 21:29:44,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 144 transitions, 539 flow [2023-08-31 21:29:44,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 144 transitions, 539 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:44,589 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 303 flow [2023-08-31 21:29:44,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2023-08-31 21:29:44,590 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -26 predicate places. [2023-08-31 21:29:44,590 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 303 flow [2023-08-31 21:29:44,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:44,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:44,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:44,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:29:44,591 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:44,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:44,592 INFO L85 PathProgramCache]: Analyzing trace with hash -380490289, now seen corresponding path program 1 times [2023-08-31 21:29:44,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:44,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745976491] [2023-08-31 21:29:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:44,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:29:44,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:44,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745976491] [2023-08-31 21:29:44,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745976491] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:44,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807029672] [2023-08-31 21:29:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:44,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:44,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:44,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:44,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:29:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:44,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-31 21:29:44,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:29:44,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:29:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:29:44,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807029672] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:29:44,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:29:44,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-31 21:29:44,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282660155] [2023-08-31 21:29:44,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:29:44,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 21:29:44,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:44,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 21:29:44,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-31 21:29:45,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 1096 [2023-08-31 21:29:45,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 303 flow. Second operand has 8 states, 8 states have (on average 512.875) internal successors, (4103), 8 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:45,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:45,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 1096 [2023-08-31 21:29:45,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:45,989 INFO L130 PetriNetUnfolder]: 4260/11614 cut-off events. [2023-08-31 21:29:45,989 INFO L131 PetriNetUnfolder]: For 1297/1416 co-relation queries the response was YES. [2023-08-31 21:29:46,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20163 conditions, 11614 events. 4260/11614 cut-off events. For 1297/1416 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 112584 event pairs, 3018 based on Foata normal form. 0/10570 useless extension candidates. Maximal degree in co-relation 20154. Up to 6095 conditions per place. [2023-08-31 21:29:46,069 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 40 selfloop transitions, 15 changer transitions 0/123 dead transitions. [2023-08-31 21:29:46,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 449 flow [2023-08-31 21:29:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3118 transitions. [2023-08-31 21:29:46,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741484184914842 [2023-08-31 21:29:46,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3118 transitions. [2023-08-31 21:29:46,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3118 transitions. [2023-08-31 21:29:46,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:46,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3118 transitions. [2023-08-31 21:29:46,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 519.6666666666666) internal successors, (3118), 6 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:46,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:46,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:46,087 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 303 flow. Second operand 6 states and 3118 transitions. [2023-08-31 21:29:46,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 449 flow [2023-08-31 21:29:46,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 123 transitions, 449 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:46,091 INFO L231 Difference]: Finished difference. Result has 125 places, 123 transitions, 399 flow [2023-08-31 21:29:46,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=125, PETRI_TRANSITIONS=123} [2023-08-31 21:29:46,092 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -18 predicate places. [2023-08-31 21:29:46,092 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 123 transitions, 399 flow [2023-08-31 21:29:46,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 512.875) internal successors, (4103), 8 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:46,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:46,094 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:46,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-31 21:29:46,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:46,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:46,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1146691807, now seen corresponding path program 2 times [2023-08-31 21:29:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:46,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397414025] [2023-08-31 21:29:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:46,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:46,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:46,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397414025] [2023-08-31 21:29:46,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397414025] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:46,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321783403] [2023-08-31 21:29:46,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 21:29:46,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:46,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:46,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:46,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:29:46,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 21:29:46,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:29:46,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-31 21:29:46,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:46,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 21:29:46,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 21:29:46,776 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:29:46,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 21:29:46,801 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:29:46,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 21:29:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:46,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 21:29:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321783403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:46,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 21:29:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-31 21:29:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349728988] [2023-08-31 21:29:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:46,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 21:29:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 21:29:46,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:29:47,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-31 21:29:47,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 123 transitions, 399 flow. Second operand has 7 states, 7 states have (on average 509.42857142857144) internal successors, (3566), 7 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:47,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:47,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-31 21:29:47,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:48,905 INFO L130 PetriNetUnfolder]: 12658/20964 cut-off events. [2023-08-31 21:29:48,906 INFO L131 PetriNetUnfolder]: For 4074/4188 co-relation queries the response was YES. [2023-08-31 21:29:48,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44380 conditions, 20964 events. 12658/20964 cut-off events. For 4074/4188 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 155980 event pairs, 1062 based on Foata normal form. 0/19599 useless extension candidates. Maximal degree in co-relation 44367. Up to 6486 conditions per place. [2023-08-31 21:29:49,053 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 158 selfloop transitions, 5 changer transitions 0/226 dead transitions. [2023-08-31 21:29:49,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 226 transitions, 1051 flow [2023-08-31 21:29:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:29:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:29:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3671 transitions. [2023-08-31 21:29:49,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4784932221063608 [2023-08-31 21:29:49,061 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3671 transitions. [2023-08-31 21:29:49,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3671 transitions. [2023-08-31 21:29:49,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:49,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3671 transitions. [2023-08-31 21:29:49,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 524.4285714285714) internal successors, (3671), 7 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:49,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:49,077 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:49,077 INFO L175 Difference]: Start difference. First operand has 125 places, 123 transitions, 399 flow. Second operand 7 states and 3671 transitions. [2023-08-31 21:29:49,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 226 transitions, 1051 flow [2023-08-31 21:29:49,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 226 transitions, 1027 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-31 21:29:49,081 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 383 flow [2023-08-31 21:29:49,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-31 21:29:49,082 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-31 21:29:49,082 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 383 flow [2023-08-31 21:29:49,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 509.42857142857144) internal successors, (3566), 7 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:49,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:49,083 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:49,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 21:29:49,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-31 21:29:49,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:49,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:49,289 INFO L85 PathProgramCache]: Analyzing trace with hash -37000984, now seen corresponding path program 1 times [2023-08-31 21:29:49,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:49,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96892712] [2023-08-31 21:29:49,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:49,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:49,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:49,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96892712] [2023-08-31 21:29:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96892712] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577412554] [2023-08-31 21:29:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:49,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:49,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:49,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:49,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 21:29:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:49,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:29:49,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:49,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:29:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:49,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577412554] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:29:49,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:29:49,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-31 21:29:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042201791] [2023-08-31 21:29:49,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:29:49,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-31 21:29:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-31 21:29:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-31 21:29:50,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 1096 [2023-08-31 21:29:50,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 383 flow. Second operand has 17 states, 17 states have (on average 511.70588235294116) internal successors, (8699), 17 states have internal predecessors, (8699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:50,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:50,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 1096 [2023-08-31 21:29:50,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:51,333 INFO L130 PetriNetUnfolder]: 4260/11583 cut-off events. [2023-08-31 21:29:51,334 INFO L131 PetriNetUnfolder]: For 1989/2108 co-relation queries the response was YES. [2023-08-31 21:29:51,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20961 conditions, 11583 events. 4260/11583 cut-off events. For 1989/2108 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 112064 event pairs, 3018 based on Foata normal form. 1/10569 useless extension candidates. Maximal degree in co-relation 20947. Up to 6095 conditions per place. [2023-08-31 21:29:51,416 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 40 selfloop transitions, 18 changer transitions 0/125 dead transitions. [2023-08-31 21:29:51,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 125 transitions, 517 flow [2023-08-31 21:29:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:29:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:29:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3625 transitions. [2023-08-31 21:29:51,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47249739311783107 [2023-08-31 21:29:51,422 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3625 transitions. [2023-08-31 21:29:51,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3625 transitions. [2023-08-31 21:29:51,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:51,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3625 transitions. [2023-08-31 21:29:51,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 517.8571428571429) internal successors, (3625), 7 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:51,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:51,436 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:51,436 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 383 flow. Second operand 7 states and 3625 transitions. [2023-08-31 21:29:51,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 125 transitions, 517 flow [2023-08-31 21:29:51,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 508 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:51,442 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 442 flow [2023-08-31 21:29:51,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=442, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2023-08-31 21:29:51,442 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -12 predicate places. [2023-08-31 21:29:51,442 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 442 flow [2023-08-31 21:29:51,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 511.70588235294116) internal successors, (8699), 17 states have internal predecessors, (8699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:51,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:51,444 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:51,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 21:29:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:51,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:51,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash 73336442, now seen corresponding path program 2 times [2023-08-31 21:29:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729910532] [2023-08-31 21:29:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:51,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:29:52,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:52,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729910532] [2023-08-31 21:29:52,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729910532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:52,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:52,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512893534] [2023-08-31 21:29:52,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:52,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:52,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:52,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:29:52,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:52,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:52,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:29:52,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:53,756 INFO L130 PetriNetUnfolder]: 7072/14855 cut-off events. [2023-08-31 21:29:53,757 INFO L131 PetriNetUnfolder]: For 1902/1917 co-relation queries the response was YES. [2023-08-31 21:29:53,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28467 conditions, 14855 events. 7072/14855 cut-off events. For 1902/1917 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 129910 event pairs, 3002 based on Foata normal form. 0/14022 useless extension candidates. Maximal degree in co-relation 28452. Up to 5938 conditions per place. [2023-08-31 21:29:53,890 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 146 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2023-08-31 21:29:53,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 212 transitions, 994 flow [2023-08-31 21:29:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:53,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3155 transitions. [2023-08-31 21:29:53,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797749391727494 [2023-08-31 21:29:53,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3155 transitions. [2023-08-31 21:29:53,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3155 transitions. [2023-08-31 21:29:53,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:53,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3155 transitions. [2023-08-31 21:29:53,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.8333333333334) internal successors, (3155), 6 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:53,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:53,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:53,907 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 442 flow. Second operand 6 states and 3155 transitions. [2023-08-31 21:29:53,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 212 transitions, 994 flow [2023-08-31 21:29:53,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 212 transitions, 958 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-31 21:29:53,912 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 414 flow [2023-08-31 21:29:53,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-31 21:29:53,912 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -12 predicate places. [2023-08-31 21:29:53,912 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 414 flow [2023-08-31 21:29:53,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:53,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:53,913 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:29:53,913 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:53,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1602326185, now seen corresponding path program 1 times [2023-08-31 21:29:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953036901] [2023-08-31 21:29:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:29:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:54,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953036901] [2023-08-31 21:29:54,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953036901] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:54,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:54,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:54,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278755794] [2023-08-31 21:29:54,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:54,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:54,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:29:54,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:54,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:54,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:29:54,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:55,970 INFO L130 PetriNetUnfolder]: 6575/15944 cut-off events. [2023-08-31 21:29:55,970 INFO L131 PetriNetUnfolder]: For 2286/2405 co-relation queries the response was YES. [2023-08-31 21:29:56,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29462 conditions, 15944 events. 6575/15944 cut-off events. For 2286/2405 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 153338 event pairs, 3018 based on Foata normal form. 0/14928 useless extension candidates. Maximal degree in co-relation 29446. Up to 6110 conditions per place. [2023-08-31 21:29:56,066 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 142 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2023-08-31 21:29:56,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 207 transitions, 946 flow [2023-08-31 21:29:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3155 transitions. [2023-08-31 21:29:56,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797749391727494 [2023-08-31 21:29:56,071 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3155 transitions. [2023-08-31 21:29:56,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3155 transitions. [2023-08-31 21:29:56,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:56,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3155 transitions. [2023-08-31 21:29:56,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.8333333333334) internal successors, (3155), 6 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:56,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:56,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:56,080 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 414 flow. Second operand 6 states and 3155 transitions. [2023-08-31 21:29:56,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 207 transitions, 946 flow [2023-08-31 21:29:56,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 207 transitions, 928 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:56,086 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 412 flow [2023-08-31 21:29:56,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=412, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2023-08-31 21:29:56,087 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -13 predicate places. [2023-08-31 21:29:56,087 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 412 flow [2023-08-31 21:29:56,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:56,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:56,088 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:56,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:29:56,088 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:56,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:56,088 INFO L85 PathProgramCache]: Analyzing trace with hash -607691912, now seen corresponding path program 1 times [2023-08-31 21:29:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:56,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794755887] [2023-08-31 21:29:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:56,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:29:56,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794755887] [2023-08-31 21:29:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794755887] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:56,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:56,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:56,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623045090] [2023-08-31 21:29:56,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:56,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:56,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:56,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:56,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:56,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:29:56,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:56,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:56,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:29:56,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:57,858 INFO L130 PetriNetUnfolder]: 6375/13530 cut-off events. [2023-08-31 21:29:57,858 INFO L131 PetriNetUnfolder]: For 2199/2345 co-relation queries the response was YES. [2023-08-31 21:29:57,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26241 conditions, 13530 events. 6375/13530 cut-off events. For 2199/2345 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 115462 event pairs, 2725 based on Foata normal form. 1/12774 useless extension candidates. Maximal degree in co-relation 26225. Up to 5527 conditions per place. [2023-08-31 21:29:57,936 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 134 selfloop transitions, 5 changer transitions 0/198 dead transitions. [2023-08-31 21:29:57,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 198 transitions, 912 flow [2023-08-31 21:29:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3147 transitions. [2023-08-31 21:29:57,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47855839416058393 [2023-08-31 21:29:57,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3147 transitions. [2023-08-31 21:29:57,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3147 transitions. [2023-08-31 21:29:57,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:57,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3147 transitions. [2023-08-31 21:29:57,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 524.5) internal successors, (3147), 6 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:57,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:57,949 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:57,949 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 412 flow. Second operand 6 states and 3147 transitions. [2023-08-31 21:29:57,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 198 transitions, 912 flow [2023-08-31 21:29:57,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 198 transitions, 894 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:57,953 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 410 flow [2023-08-31 21:29:57,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-31 21:29:57,954 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-31 21:29:57,954 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 410 flow [2023-08-31 21:29:57,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:57,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:57,955 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:57,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:29:57,955 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:57,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2057841114, now seen corresponding path program 1 times [2023-08-31 21:29:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:57,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555485256] [2023-08-31 21:29:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:29:58,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555485256] [2023-08-31 21:29:58,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555485256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:58,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898450266] [2023-08-31 21:29:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:58,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:58,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-31 21:29:58,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:58,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:58,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-31 21:29:58,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:59,468 INFO L130 PetriNetUnfolder]: 7754/17803 cut-off events. [2023-08-31 21:29:59,469 INFO L131 PetriNetUnfolder]: For 2330/2449 co-relation queries the response was YES. [2023-08-31 21:29:59,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33831 conditions, 17803 events. 7754/17803 cut-off events. For 2330/2449 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 169909 event pairs, 2211 based on Foata normal form. 0/17214 useless extension candidates. Maximal degree in co-relation 33815. Up to 7221 conditions per place. [2023-08-31 21:29:59,570 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 90 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2023-08-31 21:29:59,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 677 flow [2023-08-31 21:29:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2023-08-31 21:29:59,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49635036496350365 [2023-08-31 21:29:59,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1632 transitions. [2023-08-31 21:29:59,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1632 transitions. [2023-08-31 21:29:59,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:59,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1632 transitions. [2023-08-31 21:29:59,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:59,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:59,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:59,580 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 410 flow. Second operand 3 states and 1632 transitions. [2023-08-31 21:29:59,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 677 flow [2023-08-31 21:29:59,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 667 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:59,589 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 410 flow [2023-08-31 21:29:59,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2023-08-31 21:29:59,590 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -18 predicate places. [2023-08-31 21:29:59,590 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 410 flow [2023-08-31 21:29:59,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:59,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:59,590 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:59,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:29:59,591 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:29:59,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:59,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1167567858, now seen corresponding path program 1 times [2023-08-31 21:29:59,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:59,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838738270] [2023-08-31 21:29:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:59,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:30:00,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:00,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838738270] [2023-08-31 21:30:00,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838738270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:00,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:00,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:30:00,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703487701] [2023-08-31 21:30:00,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:00,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:30:00,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:00,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:30:00,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:30:00,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-31 21:30:00,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 510.8333333333333) internal successors, (3065), 6 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:00,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:00,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-31 21:30:00,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:01,829 INFO L130 PetriNetUnfolder]: 7351/17407 cut-off events. [2023-08-31 21:30:01,829 INFO L131 PetriNetUnfolder]: For 2138/2257 co-relation queries the response was YES. [2023-08-31 21:30:01,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32258 conditions, 17407 events. 7351/17407 cut-off events. For 2138/2257 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 166068 event pairs, 3880 based on Foata normal form. 0/17013 useless extension candidates. Maximal degree in co-relation 32242. Up to 7640 conditions per place. [2023-08-31 21:30:01,920 INFO L137 encePairwiseOnDemand]: 1091/1096 looper letters, 130 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2023-08-31 21:30:01,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 193 transitions, 900 flow [2023-08-31 21:30:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:30:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:30:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3140 transitions. [2023-08-31 21:30:01,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774939172749392 [2023-08-31 21:30:01,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3140 transitions. [2023-08-31 21:30:01,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3140 transitions. [2023-08-31 21:30:01,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:01,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3140 transitions. [2023-08-31 21:30:01,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 523.3333333333334) internal successors, (3140), 6 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:01,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:01,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:01,931 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 410 flow. Second operand 6 states and 3140 transitions. [2023-08-31 21:30:01,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 193 transitions, 900 flow [2023-08-31 21:30:01,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 193 transitions, 900 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:30:01,935 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 416 flow [2023-08-31 21:30:01,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2023-08-31 21:30:01,935 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-31 21:30:01,935 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 416 flow [2023-08-31 21:30:01,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 510.8333333333333) internal successors, (3065), 6 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:01,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:01,936 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:01,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:30:01,936 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:30:01,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1810021793, now seen corresponding path program 1 times [2023-08-31 21:30:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:01,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779451095] [2023-08-31 21:30:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:30:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779451095] [2023-08-31 21:30:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779451095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:02,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:02,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:30:02,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158871482] [2023-08-31 21:30:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:02,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:30:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:02,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:30:02,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:30:02,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:30:02,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 416 flow. Second operand has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:02,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:02,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:30:02,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:03,901 INFO L130 PetriNetUnfolder]: 7921/18125 cut-off events. [2023-08-31 21:30:03,901 INFO L131 PetriNetUnfolder]: For 2343/2462 co-relation queries the response was YES. [2023-08-31 21:30:03,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34381 conditions, 18125 events. 7921/18125 cut-off events. For 2343/2462 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 171572 event pairs, 4218 based on Foata normal form. 0/17743 useless extension candidates. Maximal degree in co-relation 34364. Up to 8122 conditions per place. [2023-08-31 21:30:04,025 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 141 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2023-08-31 21:30:04,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 204 transitions, 938 flow [2023-08-31 21:30:04,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:30:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:30:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3154 transitions. [2023-08-31 21:30:04,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796228710462287 [2023-08-31 21:30:04,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3154 transitions. [2023-08-31 21:30:04,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3154 transitions. [2023-08-31 21:30:04,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:04,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3154 transitions. [2023-08-31 21:30:04,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.6666666666666) internal successors, (3154), 6 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:04,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:04,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:04,037 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 416 flow. Second operand 6 states and 3154 transitions. [2023-08-31 21:30:04,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 204 transitions, 938 flow [2023-08-31 21:30:04,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 204 transitions, 931 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:30:04,043 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 417 flow [2023-08-31 21:30:04,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-31 21:30:04,044 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-31 21:30:04,044 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 417 flow [2023-08-31 21:30:04,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:04,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:04,044 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:04,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:30:04,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:30:04,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:04,045 INFO L85 PathProgramCache]: Analyzing trace with hash 911898707, now seen corresponding path program 1 times [2023-08-31 21:30:04,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:04,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017919002] [2023-08-31 21:30:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:04,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:30:04,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017919002] [2023-08-31 21:30:04,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017919002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:04,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:04,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:30:04,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031238933] [2023-08-31 21:30:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:04,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:30:04,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:04,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:30:04,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:30:04,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:30:04,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:04,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:04,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:30:04,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:06,156 INFO L130 PetriNetUnfolder]: 7266/16930 cut-off events. [2023-08-31 21:30:06,156 INFO L131 PetriNetUnfolder]: For 2334/2453 co-relation queries the response was YES. [2023-08-31 21:30:06,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32622 conditions, 16930 events. 7266/16930 cut-off events. For 2334/2453 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 159231 event pairs, 3909 based on Foata normal form. 0/16568 useless extension candidates. Maximal degree in co-relation 32605. Up to 7681 conditions per place. [2023-08-31 21:30:06,340 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 132 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2023-08-31 21:30:06,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 195 transitions, 913 flow [2023-08-31 21:30:06,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:30:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:30:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3145 transitions. [2023-08-31 21:30:06,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47825425790754256 [2023-08-31 21:30:06,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3145 transitions. [2023-08-31 21:30:06,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3145 transitions. [2023-08-31 21:30:06,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:06,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3145 transitions. [2023-08-31 21:30:06,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 524.1666666666666) internal successors, (3145), 6 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:06,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:06,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:06,351 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 417 flow. Second operand 6 states and 3145 transitions. [2023-08-31 21:30:06,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 195 transitions, 913 flow [2023-08-31 21:30:06,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 195 transitions, 895 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:30:06,373 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 415 flow [2023-08-31 21:30:06,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-31 21:30:06,374 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -15 predicate places. [2023-08-31 21:30:06,374 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 415 flow [2023-08-31 21:30:06,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:06,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:06,374 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:06,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:30:06,374 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:30:06,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1550886146, now seen corresponding path program 1 times [2023-08-31 21:30:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:06,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123742124] [2023-08-31 21:30:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:06,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:30:06,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:06,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123742124] [2023-08-31 21:30:06,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123742124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:06,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:06,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:30:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965679335] [2023-08-31 21:30:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:06,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:30:06,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:30:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:30:07,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-31 21:30:07,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:07,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:07,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-31 21:30:07,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:08,523 INFO L130 PetriNetUnfolder]: 7773/17925 cut-off events. [2023-08-31 21:30:08,524 INFO L131 PetriNetUnfolder]: For 2551/2670 co-relation queries the response was YES. [2023-08-31 21:30:08,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34465 conditions, 17925 events. 7773/17925 cut-off events. For 2551/2670 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 169056 event pairs, 4218 based on Foata normal form. 0/17523 useless extension candidates. Maximal degree in co-relation 34448. Up to 8206 conditions per place. [2023-08-31 21:30:08,627 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 141 selfloop transitions, 5 changer transitions 0/202 dead transitions. [2023-08-31 21:30:08,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 202 transitions, 953 flow [2023-08-31 21:30:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:30:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:30:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3154 transitions. [2023-08-31 21:30:08,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796228710462287 [2023-08-31 21:30:08,631 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3154 transitions. [2023-08-31 21:30:08,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3154 transitions. [2023-08-31 21:30:08,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:08,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3154 transitions. [2023-08-31 21:30:08,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.6666666666666) internal successors, (3154), 6 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:08,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:08,638 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:08,638 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 415 flow. Second operand 6 states and 3154 transitions. [2023-08-31 21:30:08,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 202 transitions, 953 flow [2023-08-31 21:30:08,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 202 transitions, 927 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:30:08,648 INFO L231 Difference]: Finished difference. Result has 127 places, 118 transitions, 413 flow [2023-08-31 21:30:08,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=127, PETRI_TRANSITIONS=118} [2023-08-31 21:30:08,649 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -16 predicate places. [2023-08-31 21:30:08,649 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 118 transitions, 413 flow [2023-08-31 21:30:08,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:08,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:08,650 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:08,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 21:30:08,650 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-31 21:30:08,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash -607526621, now seen corresponding path program 1 times [2023-08-31 21:30:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:08,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9876658] [2023-08-31 21:30:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:08,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 21:30:09,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:09,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9876658] [2023-08-31 21:30:09,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9876658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:09,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:09,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:30:09,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695121488] [2023-08-31 21:30:09,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:09,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:30:09,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:09,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:30:09,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:30:09,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-31 21:30:09,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 413 flow. Second operand has 6 states, 6 states have (on average 511.8333333333333) internal successors, (3071), 6 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:09,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:09,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-31 21:30:09,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:10,549 INFO L130 PetriNetUnfolder]: 6041/15713 cut-off events. [2023-08-31 21:30:10,549 INFO L131 PetriNetUnfolder]: For 1908/2027 co-relation queries the response was YES. [2023-08-31 21:30:10,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28961 conditions, 15713 events. 6041/15713 cut-off events. For 1908/2027 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 155881 event pairs, 4190 based on Foata normal form. 0/15360 useless extension candidates. Maximal degree in co-relation 28944. Up to 8252 conditions per place. [2023-08-31 21:30:10,660 INFO L137 encePairwiseOnDemand]: 1091/1096 looper letters, 0 selfloop transitions, 0 changer transitions 153/153 dead transitions. [2023-08-31 21:30:10,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 707 flow [2023-08-31 21:30:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:30:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:30:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3116 transitions. [2023-08-31 21:30:10,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738442822384428 [2023-08-31 21:30:10,665 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3116 transitions. [2023-08-31 21:30:10,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3116 transitions. [2023-08-31 21:30:10,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:10,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3116 transitions. [2023-08-31 21:30:10,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 519.3333333333334) internal successors, (3116), 6 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:10,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:10,672 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:10,672 INFO L175 Difference]: Start difference. First operand has 127 places, 118 transitions, 413 flow. Second operand 6 states and 3116 transitions. [2023-08-31 21:30:10,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 707 flow [2023-08-31 21:30:10,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 153 transitions, 697 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:30:10,676 INFO L231 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2023-08-31 21:30:10,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2023-08-31 21:30:10,677 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -17 predicate places. [2023-08-31 21:30:10,677 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2023-08-31 21:30:10,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 511.8333333333333) internal successors, (3071), 6 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (83 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (82 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (81 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (80 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (79 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (78 of 84 remaining) [2023-08-31 21:30:10,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (72 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (71 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (70 of 84 remaining) [2023-08-31 21:30:10,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (68 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (67 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 84 remaining) [2023-08-31 21:30:10,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (57 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (56 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (55 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (54 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (53 of 84 remaining) [2023-08-31 21:30:10,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (52 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (51 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 84 remaining) [2023-08-31 21:30:10,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (43 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (42 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 84 remaining) [2023-08-31 21:30:10,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (32 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (31 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (30 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (29 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (28 of 84 remaining) [2023-08-31 21:30:10,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (27 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 84 remaining) [2023-08-31 21:30:10,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (17 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (16 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (15 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (14 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (12 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (11 of 84 remaining) [2023-08-31 21:30:10,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (6 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (5 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 84 remaining) [2023-08-31 21:30:10,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 84 remaining) [2023-08-31 21:30:10,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 84 remaining) [2023-08-31 21:30:10,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 21:30:10,690 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:10,694 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:30:10,694 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:30:10,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:30:10 BasicIcfg [2023-08-31 21:30:10,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:30:10,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:30:10,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:30:10,697 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:30:10,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:30" (3/4) ... [2023-08-31 21:30:10,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:30:10,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:30:10,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:30:10,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:30:10,707 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-08-31 21:30:10,708 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:30:10,708 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:30:10,708 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:30:10,737 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:30:10,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:30:10,737 INFO L158 Benchmark]: Toolchain (without parser) took 41857.01ms. Allocated memory was 62.9MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 40.4MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2023-08-31 21:30:10,738 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:30:10,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.41ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 40.2MB in the beginning and 57.2MB in the end (delta: -17.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-08-31 21:30:10,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.24ms. Allocated memory is still 77.6MB. Free memory was 57.2MB in the beginning and 53.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:30:10,738 INFO L158 Benchmark]: Boogie Preprocessor took 58.63ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 49.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:30:10,738 INFO L158 Benchmark]: RCFGBuilder took 833.26ms. Allocated memory is still 77.6MB. Free memory was 49.9MB in the beginning and 32.2MB in the end (delta: 17.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-08-31 21:30:10,739 INFO L158 Benchmark]: TraceAbstraction took 40611.31ms. Allocated memory was 77.6MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 31.7MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-08-31 21:30:10,739 INFO L158 Benchmark]: Witness Printer took 40.07ms. Allocated memory is still 3.9GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-31 21:30:10,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.41ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 40.2MB in the beginning and 57.2MB in the end (delta: -17.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.24ms. Allocated memory is still 77.6MB. Free memory was 57.2MB in the beginning and 53.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.63ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 49.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 833.26ms. Allocated memory is still 77.6MB. Free memory was 49.9MB in the beginning and 32.2MB in the end (delta: 17.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 40611.31ms. Allocated memory was 77.6MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 31.7MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 40.07ms. Allocated memory is still 3.9GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 512 PlacesBefore, 143 PlacesAfterwards, 533 TransitionsBefore, 139 TransitionsAfterwards, 67830 CoEnabledTransitionPairs, 8 FixpointIterations, 203 TrivialSequentialCompositions, 248 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 30 ConcurrentYvCompositions, 25 ChoiceCompositions, 539 TotalNumberOfCompositions, 213738 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85454, independent: 83858, independent conditional: 0, independent unconditional: 83858, dependent: 1596, dependent conditional: 0, dependent unconditional: 1596, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 36105, independent: 35865, independent conditional: 0, independent unconditional: 35865, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 85454, independent: 47993, independent conditional: 0, independent unconditional: 47993, dependent: 1356, dependent conditional: 0, dependent unconditional: 1356, unknown: 36105, unknown conditional: 0, unknown unconditional: 36105] , Statistics on independence cache: Total cache size (in pairs): 2278, Positive cache size: 2121, Positive conditional cache size: 0, Positive unconditional cache size: 2121, Negative cache size: 157, Negative conditional cache size: 0, Negative unconditional cache size: 157, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 798 locations, 84 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.4s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 25.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4088 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2544 mSDsluCounter, 405 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 1388 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9167 IncrementalHoareTripleChecker+Invalid, 10555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1388 mSolverCounterUnsat, 338 mSDtfsCounter, 9167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=10, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 570 NumberOfCodeBlocks, 558 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 1724 SizeOfPredicates, 2 NumberOfNonLiveVariables, 971 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 24 InterpolantComputations, 17 PerfectInterpolantSequences, 533/576 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:30:10,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE