./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-sorted.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/popl20-more-sorted.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 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 --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 21:50:58,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:50:58,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:50:58,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:50:58,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:50:58,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:50:58,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:50:58,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:50:58,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:50:58,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:50:58,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:50:58,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:50:58,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:50:58,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:50:58,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:50:58,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:50:58,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:50:58,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:50:58,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:50:58,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:50:58,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:50:58,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:50:58,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:50:58,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:50:58,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:50:58,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:50:58,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:50:58,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:50:58,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:50:58,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:50:58,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:50:58,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:50:58,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:50:58,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:50:58,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:50:58,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:50:58,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:50:58,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:50:58,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:50:58,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:50:58,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:50:58,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:50:58,216 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:50:58,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:50:58,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:50:58,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:50:58,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:50:58,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:50:58,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:50:58,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:50:58,219 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:50:58,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:50:58,220 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:50:58,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:50:58,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:50:58,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:50:58,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:50:58,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:50:58,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:50:58,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:50:58,222 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:50:58,222 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:50:58,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:50:58,222 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:50:58,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:50:58,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:50:58,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:50:58,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:50:58,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:50:58,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:50:58,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:50:58,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:50:58,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:50:58,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:50:58,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:50:58,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:50:58,224 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:50:58,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:50:58,225 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:50:58,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:50:58,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:50:58,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:50:58,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:50:58,515 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:50:58,516 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:50:58,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2023-08-31 21:50:59,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:51:00,030 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:51:00,030 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2023-08-31 21:51:00,039 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c86cee0/91d87bd2cdee4573ad3f9da04c327f42/FLAG647e1f386 [2023-08-31 21:51:00,059 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c86cee0/91d87bd2cdee4573ad3f9da04c327f42 [2023-08-31 21:51:00,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:51:00,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:51:00,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:51:00,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:51:00,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:51:00,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cc2ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00, skipping insertion in model container [2023-08-31 21:51:00,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:51:00,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:51:00,242 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447] [2023-08-31 21:51:00,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:51:00,255 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:51:00,282 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447] [2023-08-31 21:51:00,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:51:00,300 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:51:00,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00 WrapperNode [2023-08-31 21:51:00,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:51:00,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:51:00,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:51:00,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:51:00,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,364 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 176 [2023-08-31 21:51:00,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:51:00,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:51:00,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:51:00,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:51:00,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:51:00,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:51:00,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:51:00,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:51:00,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (1/1) ... [2023-08-31 21:51:00,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:51:00,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:51:00,513 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 21:51:00,544 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 21:51:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:51:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:51:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:51:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:51:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:51:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:51:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:51:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:51:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:51:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:51:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:51:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:51:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:51:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:51:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:51:00,562 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 21:51:00,694 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:51:00,696 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:51:01,202 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:51:01,213 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:51:01,213 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-31 21:51:01,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:01 BoogieIcfgContainer [2023-08-31 21:51:01,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:51:01,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:51:01,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:51:01,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:51:01,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:51:00" (1/3) ... [2023-08-31 21:51:01,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4d162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:51:01, skipping insertion in model container [2023-08-31 21:51:01,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:51:00" (2/3) ... [2023-08-31 21:51:01,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4d162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:51:01, skipping insertion in model container [2023-08-31 21:51:01,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:01" (3/3) ... [2023-08-31 21:51:01,232 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2023-08-31 21:51:01,239 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:51:01,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:51:01,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-08-31 21:51:01,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:51:01,395 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:51:01,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 350 transitions, 724 flow [2023-08-31 21:51:01,600 INFO L130 PetriNetUnfolder]: 17/347 cut-off events. [2023-08-31 21:51:01,600 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:51:01,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 347 events. 17/347 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 720 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 240. Up to 2 conditions per place. [2023-08-31 21:51:01,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 350 transitions, 724 flow [2023-08-31 21:51:01,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 322 places, 327 transitions, 672 flow [2023-08-31 21:51:01,623 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:51:01,640 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 322 places, 327 transitions, 672 flow [2023-08-31 21:51:01,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 322 places, 327 transitions, 672 flow [2023-08-31 21:51:01,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 327 transitions, 672 flow [2023-08-31 21:51:01,711 INFO L130 PetriNetUnfolder]: 15/327 cut-off events. [2023-08-31 21:51:01,711 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:51:01,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 327 events. 15/327 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 706 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 240. Up to 2 conditions per place. [2023-08-31 21:51:01,726 INFO L119 LiptonReduction]: Number of co-enabled transitions 21474 [2023-08-31 21:51:09,069 INFO L134 LiptonReduction]: Checked pairs total: 137204 [2023-08-31 21:51:09,069 INFO L136 LiptonReduction]: Total number of compositions: 283 [2023-08-31 21:51:09,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:51:09,095 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;@2bd67b65, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:51:09,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-31 21:51:09,098 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:51:09,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:51:09,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:09,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:51:09,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:09,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2023-08-31 21:51:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:09,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797171646] [2023-08-31 21:51:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:09,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:09,198 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 21:51:09,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:09,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797171646] [2023-08-31 21:51:09,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797171646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:09,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:51:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307922472] [2023-08-31 21:51:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:09,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:51:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:51:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:51:09,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 633 [2023-08-31 21:51:09,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 284 flow. Second operand has 2 states, 2 states have (on average 335.5) internal successors, (671), 2 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 21:51:09,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:09,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 633 [2023-08-31 21:51:09,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:10,022 INFO L130 PetriNetUnfolder]: 2574/7157 cut-off events. [2023-08-31 21:51:10,022 INFO L131 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2023-08-31 21:51:10,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10649 conditions, 7157 events. 2574/7157 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 72006 event pairs, 1475 based on Foata normal form. 549/5878 useless extension candidates. Maximal degree in co-relation 9347. Up to 3345 conditions per place. [2023-08-31 21:51:10,081 INFO L137 encePairwiseOnDemand]: 610/633 looper letters, 34 selfloop transitions, 0 changer transitions 1/110 dead transitions. [2023-08-31 21:51:10,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 308 flow [2023-08-31 21:51:10,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:51:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:51:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 728 transitions. [2023-08-31 21:51:10,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5750394944707741 [2023-08-31 21:51:10,100 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 728 transitions. [2023-08-31 21:51:10,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 728 transitions. [2023-08-31 21:51:10,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:10,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 728 transitions. [2023-08-31 21:51:10,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 364.0) internal successors, (728), 2 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 21:51:10,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states 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 21:51:10,118 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states 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 21:51:10,119 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 284 flow. Second operand 2 states and 728 transitions. [2023-08-31 21:51:10,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 308 flow [2023-08-31 21:51:10,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 296 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:51:10,131 INFO L231 Difference]: Finished difference. Result has 108 places, 109 transitions, 223 flow [2023-08-31 21:51:10,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=223, PETRI_PLACES=108, PETRI_TRANSITIONS=109} [2023-08-31 21:51:10,137 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2023-08-31 21:51:10,137 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 109 transitions, 223 flow [2023-08-31 21:51:10,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 335.5) internal successors, (671), 2 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 21:51:10,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:10,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:51:10,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:51:10,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:10,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2126243569, now seen corresponding path program 1 times [2023-08-31 21:51:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107536249] [2023-08-31 21:51:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:10,336 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 21:51:10,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:10,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107536249] [2023-08-31 21:51:10,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107536249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:10,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:10,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:51:10,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828621719] [2023-08-31 21:51:10,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:10,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:51:10,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:10,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:51:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:51:10,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-31 21:51:10,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 109 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states 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 21:51:10,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:10,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-31 21:51:10,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:10,955 INFO L130 PetriNetUnfolder]: 2991/6944 cut-off events. [2023-08-31 21:51:10,955 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-31 21:51:10,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10967 conditions, 6944 events. 2991/6944 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 61327 event pairs, 1922 based on Foata normal form. 0/5232 useless extension candidates. Maximal degree in co-relation 10964. Up to 3970 conditions per place. [2023-08-31 21:51:11,008 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 35 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2023-08-31 21:51:11,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 291 flow [2023-08-31 21:51:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:51:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:51:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2023-08-31 21:51:11,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286993154291733 [2023-08-31 21:51:11,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2023-08-31 21:51:11,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2023-08-31 21:51:11,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:11,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2023-08-31 21:51:11,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states 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 21:51:11,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:11,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:11,020 INFO L175 Difference]: Start difference. First operand has 108 places, 109 transitions, 223 flow. Second operand 3 states and 1004 transitions. [2023-08-31 21:51:11,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 291 flow [2023-08-31 21:51:11,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:51:11,025 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 221 flow [2023-08-31 21:51:11,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2023-08-31 21:51:11,026 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -26 predicate places. [2023-08-31 21:51:11,026 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 221 flow [2023-08-31 21:51:11,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states 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 21:51:11,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:11,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:11,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:51:11,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:11,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1084721334, now seen corresponding path program 1 times [2023-08-31 21:51:11,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:11,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916231950] [2023-08-31 21:51:11,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:11,126 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 21:51:11,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:11,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916231950] [2023-08-31 21:51:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916231950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:11,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:11,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:51:11,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858506826] [2023-08-31 21:51:11,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:11,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:51:11,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:51:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:51:11,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 633 [2023-08-31 21:51:11,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states 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 21:51:11,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:11,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 633 [2023-08-31 21:51:11,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:12,370 INFO L130 PetriNetUnfolder]: 6905/15038 cut-off events. [2023-08-31 21:51:12,371 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2023-08-31 21:51:12,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24246 conditions, 15038 events. 6905/15038 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 141945 event pairs, 1278 based on Foata normal form. 0/11835 useless extension candidates. Maximal degree in co-relation 24242. Up to 7625 conditions per place. [2023-08-31 21:51:12,471 INFO L137 encePairwiseOnDemand]: 624/633 looper letters, 63 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2023-08-31 21:51:12,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 126 transitions, 395 flow [2023-08-31 21:51:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:51:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:51:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2023-08-31 21:51:12,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371248025276462 [2023-08-31 21:51:12,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2023-08-31 21:51:12,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2023-08-31 21:51:12,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:12,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2023-08-31 21:51:12,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states 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 21:51:12,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:12,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:12,483 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 221 flow. Second operand 3 states and 1020 transitions. [2023-08-31 21:51:12,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 126 transitions, 395 flow [2023-08-31 21:51:12,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 126 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:51:12,488 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 229 flow [2023-08-31 21:51:12,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2023-08-31 21:51:12,490 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -30 predicate places. [2023-08-31 21:51:12,492 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 229 flow [2023-08-31 21:51:12,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states 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 21:51:12,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:12,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:12,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:51:12,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:12,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1421367791, now seen corresponding path program 1 times [2023-08-31 21:51:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898339627] [2023-08-31 21:51:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:12,575 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 21:51:12,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:12,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898339627] [2023-08-31 21:51:12,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898339627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:12,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:12,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:51:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141826861] [2023-08-31 21:51:12,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:12,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:51:12,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:51:12,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:51:12,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-31 21:51:12,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states 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 21:51:12,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:12,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-31 21:51:12,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:13,384 INFO L130 PetriNetUnfolder]: 4562/9187 cut-off events. [2023-08-31 21:51:13,386 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2023-08-31 21:51:13,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16197 conditions, 9187 events. 4562/9187 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 73361 event pairs, 2803 based on Foata normal form. 0/6889 useless extension candidates. Maximal degree in co-relation 16193. Up to 6059 conditions per place. [2023-08-31 21:51:13,436 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 38 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2023-08-31 21:51:13,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 303 flow [2023-08-31 21:51:13,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:51:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:51:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2023-08-31 21:51:13,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286993154291733 [2023-08-31 21:51:13,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2023-08-31 21:51:13,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2023-08-31 21:51:13,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:13,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2023-08-31 21:51:13,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states 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 21:51:13,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:13,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:13,452 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 229 flow. Second operand 3 states and 1004 transitions. [2023-08-31 21:51:13,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 303 flow [2023-08-31 21:51:13,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:51:13,458 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 227 flow [2023-08-31 21:51:13,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2023-08-31 21:51:13,461 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -30 predicate places. [2023-08-31 21:51:13,461 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 227 flow [2023-08-31 21:51:13,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states 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 21:51:13,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:13,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:13,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:51:13,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:13,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1061850866, now seen corresponding path program 1 times [2023-08-31 21:51:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:13,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852368632] [2023-08-31 21:51:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:13,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:13,597 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 21:51:13,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:13,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852368632] [2023-08-31 21:51:13,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852368632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:13,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:13,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:51:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198727915] [2023-08-31 21:51:13,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:13,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:51:13,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:13,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:51:13,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:51:13,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 633 [2023-08-31 21:51:13,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 0 states 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 21:51:13,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:13,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 633 [2023-08-31 21:51:13,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:14,277 INFO L130 PetriNetUnfolder]: 3846/8729 cut-off events. [2023-08-31 21:51:14,278 INFO L131 PetriNetUnfolder]: For 479/479 co-relation queries the response was YES. [2023-08-31 21:51:14,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14493 conditions, 8729 events. 3846/8729 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 78074 event pairs, 2050 based on Foata normal form. 1/6380 useless extension candidates. Maximal degree in co-relation 14488. Up to 4980 conditions per place. [2023-08-31 21:51:14,336 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 36 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-08-31 21:51:14,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 103 transitions, 305 flow [2023-08-31 21:51:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:51:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:51:14,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2023-08-31 21:51:14,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5402843601895735 [2023-08-31 21:51:14,340 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2023-08-31 21:51:14,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2023-08-31 21:51:14,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:14,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2023-08-31 21:51:14,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states 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 21:51:14,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:14,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states 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 21:51:14,347 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 227 flow. Second operand 3 states and 1026 transitions. [2023-08-31 21:51:14,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 103 transitions, 305 flow [2023-08-31 21:51:14,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:51:14,350 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 238 flow [2023-08-31 21:51:14,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2023-08-31 21:51:14,350 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -28 predicate places. [2023-08-31 21:51:14,351 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 238 flow [2023-08-31 21:51:14,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 0 states 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 21:51:14,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:14,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:14,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:51:14,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:14,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1716033877, now seen corresponding path program 1 times [2023-08-31 21:51:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98138379] [2023-08-31 21:51:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:51:14,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:14,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98138379] [2023-08-31 21:51:14,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98138379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:14,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:14,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:14,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734603097] [2023-08-31 21:51:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:14,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:14,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:14,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:15,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-31 21:51:15,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states 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 21:51:15,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:15,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-31 21:51:15,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:16,183 INFO L130 PetriNetUnfolder]: 10770/15857 cut-off events. [2023-08-31 21:51:16,184 INFO L131 PetriNetUnfolder]: For 1199/1199 co-relation queries the response was YES. [2023-08-31 21:51:16,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31327 conditions, 15857 events. 10770/15857 cut-off events. For 1199/1199 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 101267 event pairs, 792 based on Foata normal form. 0/10552 useless extension candidates. Maximal degree in co-relation 31321. Up to 4880 conditions per place. [2023-08-31 21:51:16,330 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 134 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2023-08-31 21:51:16,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 198 transitions, 764 flow [2023-08-31 21:51:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:16,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2023-08-31 21:51:16,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5410742496050553 [2023-08-31 21:51:16,336 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2023-08-31 21:51:16,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2023-08-31 21:51:16,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:16,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2023-08-31 21:51:16,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states 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 21:51:16,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:16,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:16,351 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 238 flow. Second operand 6 states and 2055 transitions. [2023-08-31 21:51:16,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 198 transitions, 764 flow [2023-08-31 21:51:16,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 198 transitions, 760 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 21:51:16,356 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 240 flow [2023-08-31 21:51:16,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2023-08-31 21:51:16,357 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2023-08-31 21:51:16,357 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 240 flow [2023-08-31 21:51:16,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states 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 21:51:16,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:16,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:16,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:51:16,358 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:16,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -696639168, now seen corresponding path program 1 times [2023-08-31 21:51:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:16,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847378564] [2023-08-31 21:51:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:16,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:16,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847378564] [2023-08-31 21:51:16,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847378564] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:51:16,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389232152] [2023-08-31 21:51:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:16,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:51:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:51:16,457 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 21:51:16,487 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 21:51:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:16,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 21:51:16,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:51:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:16,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:51:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:16,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389232152] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:51:16,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:51:16,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-31 21:51:16,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323551878] [2023-08-31 21:51:16,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:51:16,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 21:51:16,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:16,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 21:51:16,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:51:17,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 633 [2023-08-31 21:51:17,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 240 flow. Second operand has 12 states, 12 states have (on average 324.4166666666667) internal successors, (3893), 12 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states 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 21:51:17,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:17,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 633 [2023-08-31 21:51:17,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:18,031 INFO L130 PetriNetUnfolder]: 5279/11054 cut-off events. [2023-08-31 21:51:18,031 INFO L131 PetriNetUnfolder]: For 1296/1693 co-relation queries the response was YES. [2023-08-31 21:51:18,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20300 conditions, 11054 events. 5279/11054 cut-off events. For 1296/1693 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 97167 event pairs, 1623 based on Foata normal form. 43/8460 useless extension candidates. Maximal degree in co-relation 20294. Up to 3361 conditions per place. [2023-08-31 21:51:18,102 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 108 selfloop transitions, 6 changer transitions 0/177 dead transitions. [2023-08-31 21:51:18,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 177 transitions, 668 flow [2023-08-31 21:51:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:51:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:51:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2368 transitions. [2023-08-31 21:51:18,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344166102459942 [2023-08-31 21:51:18,117 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2368 transitions. [2023-08-31 21:51:18,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2368 transitions. [2023-08-31 21:51:18,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:18,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2368 transitions. [2023-08-31 21:51:18,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.2857142857143) internal successors, (2368), 7 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states 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 21:51:18,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:18,133 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:18,134 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 240 flow. Second operand 7 states and 2368 transitions. [2023-08-31 21:51:18,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 177 transitions, 668 flow [2023-08-31 21:51:18,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 177 transitions, 655 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:18,146 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 279 flow [2023-08-31 21:51:18,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=279, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2023-08-31 21:51:18,147 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -19 predicate places. [2023-08-31 21:51:18,147 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 279 flow [2023-08-31 21:51:18,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 324.4166666666667) internal successors, (3893), 12 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states 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 21:51:18,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:18,149 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:18,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 21:51:18,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:51:18,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:18,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1802819581, now seen corresponding path program 2 times [2023-08-31 21:51:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094346629] [2023-08-31 21:51:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:18,604 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 21:51:18,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:18,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094346629] [2023-08-31 21:51:18,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094346629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:18,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312122500] [2023-08-31 21:51:18,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:18,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:18,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:18,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:19,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:19,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states 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 21:51:19,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:19,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:19,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:20,113 INFO L130 PetriNetUnfolder]: 7261/15959 cut-off events. [2023-08-31 21:51:20,114 INFO L131 PetriNetUnfolder]: For 2039/2039 co-relation queries the response was YES. [2023-08-31 21:51:20,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28572 conditions, 15959 events. 7261/15959 cut-off events. For 2039/2039 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 154306 event pairs, 3183 based on Foata normal form. 0/12834 useless extension candidates. Maximal degree in co-relation 28563. Up to 7071 conditions per place. [2023-08-31 21:51:20,167 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 124 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-31 21:51:20,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 721 flow [2023-08-31 21:51:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2048 transitions. [2023-08-31 21:51:20,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392311743022643 [2023-08-31 21:51:20,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2048 transitions. [2023-08-31 21:51:20,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2048 transitions. [2023-08-31 21:51:20,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:20,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2048 transitions. [2023-08-31 21:51:20,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states 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 21:51:20,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:20,184 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:20,184 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 279 flow. Second operand 6 states and 2048 transitions. [2023-08-31 21:51:20,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 721 flow [2023-08-31 21:51:20,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 186 transitions, 713 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-31 21:51:20,189 INFO L231 Difference]: Finished difference. Result has 118 places, 106 transitions, 285 flow [2023-08-31 21:51:20,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=118, PETRI_TRANSITIONS=106} [2023-08-31 21:51:20,190 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -15 predicate places. [2023-08-31 21:51:20,190 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 285 flow [2023-08-31 21:51:20,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states 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 21:51:20,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:20,191 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 21:51:20,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:51:20,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:20,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash -487733133, now seen corresponding path program 1 times [2023-08-31 21:51:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496928657] [2023-08-31 21:51:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:20,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496928657] [2023-08-31 21:51:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496928657] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:51:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993913831] [2023-08-31 21:51:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:20,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:51:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:51:20,275 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 21:51:20,286 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 21:51:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:20,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:51:20,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:51:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:20,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:51:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:20,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993913831] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:51:20,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:51:20,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-31 21:51:20,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80252107] [2023-08-31 21:51:20,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:51:20,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 21:51:20,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 21:51:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:51:20,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:20,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 285 flow. Second operand has 12 states, 12 states have (on average 322.5833333333333) internal successors, (3871), 12 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states 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 21:51:20,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:20,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:20,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:21,632 INFO L130 PetriNetUnfolder]: 4220/9758 cut-off events. [2023-08-31 21:51:21,633 INFO L131 PetriNetUnfolder]: For 1573/1679 co-relation queries the response was YES. [2023-08-31 21:51:21,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18406 conditions, 9758 events. 4220/9758 cut-off events. For 1573/1679 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 89132 event pairs, 2030 based on Foata normal form. 92/8173 useless extension candidates. Maximal degree in co-relation 18395. Up to 4136 conditions per place. [2023-08-31 21:51:21,683 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 98 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2023-08-31 21:51:21,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 167 transitions, 658 flow [2023-08-31 21:51:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:51:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:51:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2344 transitions. [2023-08-31 21:51:21,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290002256826901 [2023-08-31 21:51:21,689 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2344 transitions. [2023-08-31 21:51:21,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2344 transitions. [2023-08-31 21:51:21,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:21,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2344 transitions. [2023-08-31 21:51:21,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.85714285714283) internal successors, (2344), 7 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states 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 21:51:21,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:21,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:21,702 INFO L175 Difference]: Start difference. First operand has 118 places, 106 transitions, 285 flow. Second operand 7 states and 2344 transitions. [2023-08-31 21:51:21,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 167 transitions, 658 flow [2023-08-31 21:51:21,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 167 transitions, 649 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:21,711 INFO L231 Difference]: Finished difference. Result has 123 places, 108 transitions, 307 flow [2023-08-31 21:51:21,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=307, PETRI_PLACES=123, PETRI_TRANSITIONS=108} [2023-08-31 21:51:21,711 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -10 predicate places. [2023-08-31 21:51:21,712 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 108 transitions, 307 flow [2023-08-31 21:51:21,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 322.5833333333333) internal successors, (3871), 12 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states 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 21:51:21,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:21,713 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:21,722 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 21:51:21,918 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 21:51:21,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:21,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 605406192, now seen corresponding path program 2 times [2023-08-31 21:51:21,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:21,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203924634] [2023-08-31 21:51:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:22,201 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 21:51:22,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:22,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203924634] [2023-08-31 21:51:22,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203924634] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:22,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:22,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411976098] [2023-08-31 21:51:22,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:22,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:22,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:22,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:22,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:22,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:22,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 108 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states 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 21:51:22,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:22,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:22,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:23,513 INFO L130 PetriNetUnfolder]: 6680/13960 cut-off events. [2023-08-31 21:51:23,513 INFO L131 PetriNetUnfolder]: For 3297/3375 co-relation queries the response was YES. [2023-08-31 21:51:23,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28429 conditions, 13960 events. 6680/13960 cut-off events. For 3297/3375 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 127233 event pairs, 2669 based on Foata normal form. 78/12275 useless extension candidates. Maximal degree in co-relation 28416. Up to 5727 conditions per place. [2023-08-31 21:51:23,586 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 130 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2023-08-31 21:51:23,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 813 flow [2023-08-31 21:51:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:23,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2048 transitions. [2023-08-31 21:51:23,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392311743022643 [2023-08-31 21:51:23,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2048 transitions. [2023-08-31 21:51:23,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2048 transitions. [2023-08-31 21:51:23,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:23,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2048 transitions. [2023-08-31 21:51:23,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states 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 21:51:23,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:23,599 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:23,600 INFO L175 Difference]: Start difference. First operand has 123 places, 108 transitions, 307 flow. Second operand 6 states and 2048 transitions. [2023-08-31 21:51:23,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 813 flow [2023-08-31 21:51:23,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 192 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:51:23,620 INFO L231 Difference]: Finished difference. Result has 126 places, 108 transitions, 316 flow [2023-08-31 21:51:23,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=126, PETRI_TRANSITIONS=108} [2023-08-31 21:51:23,621 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -7 predicate places. [2023-08-31 21:51:23,621 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 108 transitions, 316 flow [2023-08-31 21:51:23,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states 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 21:51:23,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:23,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:23,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:51:23,622 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:23,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1342720661, now seen corresponding path program 1 times [2023-08-31 21:51:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:23,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528775414] [2023-08-31 21:51:23,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:23,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:23,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528775414] [2023-08-31 21:51:23,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528775414] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:51:23,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981091598] [2023-08-31 21:51:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:23,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:51:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:51:23,703 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 21:51:23,731 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 21:51:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:23,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:51:23,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:51:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:23,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:51:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:51:23,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981091598] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:51:23,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:51:23,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-31 21:51:23,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456804789] [2023-08-31 21:51:23,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:51:23,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 21:51:23,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:23,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 21:51:23,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:51:24,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:24,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 108 transitions, 316 flow. Second operand has 12 states, 12 states have (on average 323.0833333333333) internal successors, (3877), 12 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states 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 21:51:24,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:24,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:24,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:25,114 INFO L130 PetriNetUnfolder]: 4645/9780 cut-off events. [2023-08-31 21:51:25,114 INFO L131 PetriNetUnfolder]: For 2717/2769 co-relation queries the response was YES. [2023-08-31 21:51:25,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21198 conditions, 9780 events. 4645/9780 cut-off events. For 2717/2769 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 82754 event pairs, 2224 based on Foata normal form. 34/8258 useless extension candidates. Maximal degree in co-relation 21183. Up to 5220 conditions per place. [2023-08-31 21:51:25,160 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 78 selfloop transitions, 6 changer transitions 0/148 dead transitions. [2023-08-31 21:51:25,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 148 transitions, 610 flow [2023-08-31 21:51:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:51:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:51:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2324 transitions. [2023-08-31 21:51:25,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5244865718799369 [2023-08-31 21:51:25,165 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2324 transitions. [2023-08-31 21:51:25,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2324 transitions. [2023-08-31 21:51:25,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:25,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2324 transitions. [2023-08-31 21:51:25,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states 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 21:51:25,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:25,177 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states 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 21:51:25,177 INFO L175 Difference]: Start difference. First operand has 126 places, 108 transitions, 316 flow. Second operand 7 states and 2324 transitions. [2023-08-31 21:51:25,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 148 transitions, 610 flow [2023-08-31 21:51:25,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 601 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:25,200 INFO L231 Difference]: Finished difference. Result has 131 places, 110 transitions, 338 flow [2023-08-31 21:51:25,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=110} [2023-08-31 21:51:25,201 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2023-08-31 21:51:25,201 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 110 transitions, 338 flow [2023-08-31 21:51:25,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 323.0833333333333) internal successors, (3877), 12 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states 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 21:51:25,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:25,202 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:25,208 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 21:51:25,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:51:25,408 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:25,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash -417375534, now seen corresponding path program 2 times [2023-08-31 21:51:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:25,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514315148] [2023-08-31 21:51:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:25,740 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 21:51:25,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:25,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514315148] [2023-08-31 21:51:25,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514315148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:25,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:25,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:25,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615277182] [2023-08-31 21:51:25,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:25,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:25,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:26,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:26,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 110 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 323.8333333333333) internal successors, (1943), 6 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states 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 21:51:26,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:26,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:26,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:27,284 INFO L130 PetriNetUnfolder]: 6835/12874 cut-off events. [2023-08-31 21:51:27,284 INFO L131 PetriNetUnfolder]: For 4545/4579 co-relation queries the response was YES. [2023-08-31 21:51:27,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29740 conditions, 12874 events. 6835/12874 cut-off events. For 4545/4579 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 105338 event pairs, 2405 based on Foata normal form. 34/11231 useless extension candidates. Maximal degree in co-relation 29723. Up to 5609 conditions per place. [2023-08-31 21:51:27,374 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 123 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-31 21:51:27,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 186 transitions, 858 flow [2023-08-31 21:51:27,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2035 transitions. [2023-08-31 21:51:27,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5358083201685098 [2023-08-31 21:51:27,378 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2035 transitions. [2023-08-31 21:51:27,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2035 transitions. [2023-08-31 21:51:27,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:27,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2035 transitions. [2023-08-31 21:51:27,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.1666666666667) internal successors, (2035), 6 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states 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 21:51:27,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:27,387 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:27,388 INFO L175 Difference]: Start difference. First operand has 131 places, 110 transitions, 338 flow. Second operand 6 states and 2035 transitions. [2023-08-31 21:51:27,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 186 transitions, 858 flow [2023-08-31 21:51:27,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 186 transitions, 853 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:51:27,416 INFO L231 Difference]: Finished difference. Result has 134 places, 110 transitions, 347 flow [2023-08-31 21:51:27,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=134, PETRI_TRANSITIONS=110} [2023-08-31 21:51:27,417 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-31 21:51:27,417 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 110 transitions, 347 flow [2023-08-31 21:51:27,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.8333333333333) internal successors, (1943), 6 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states 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 21:51:27,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:27,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:27,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:51:27,418 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:27,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1158084679, now seen corresponding path program 1 times [2023-08-31 21:51:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:27,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34600912] [2023-08-31 21:51:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:51:27,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:27,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34600912] [2023-08-31 21:51:27,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34600912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:27,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:27,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259631689] [2023-08-31 21:51:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:27,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:27,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:27,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:27,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-31 21:51:27,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 110 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states 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 21:51:27,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:27,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-31 21:51:27,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:28,836 INFO L130 PetriNetUnfolder]: 5958/11844 cut-off events. [2023-08-31 21:51:28,836 INFO L131 PetriNetUnfolder]: For 4288/4352 co-relation queries the response was YES. [2023-08-31 21:51:28,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27917 conditions, 11844 events. 5958/11844 cut-off events. For 4288/4352 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 100038 event pairs, 2662 based on Foata normal form. 46/10408 useless extension candidates. Maximal degree in co-relation 27898. Up to 6166 conditions per place. [2023-08-31 21:51:29,003 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 135 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2023-08-31 21:51:29,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 197 transitions, 971 flow [2023-08-31 21:51:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-31 21:51:29,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5347551342812006 [2023-08-31 21:51:29,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-31 21:51:29,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-31 21:51:29,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:29,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-31 21:51:29,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states 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 21:51:29,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:29,016 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:29,016 INFO L175 Difference]: Start difference. First operand has 134 places, 110 transitions, 347 flow. Second operand 6 states and 2031 transitions. [2023-08-31 21:51:29,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 197 transitions, 971 flow [2023-08-31 21:51:29,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 197 transitions, 959 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:29,053 INFO L231 Difference]: Finished difference. Result has 134 places, 109 transitions, 345 flow [2023-08-31 21:51:29,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2023-08-31 21:51:29,055 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-31 21:51:29,055 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 345 flow [2023-08-31 21:51:29,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states 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 21:51:29,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:29,056 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:29,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:51:29,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:29,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:29,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1101091557, now seen corresponding path program 1 times [2023-08-31 21:51:29,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:29,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122248596] [2023-08-31 21:51:29,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:29,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:29,297 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 21:51:29,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:29,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122248596] [2023-08-31 21:51:29,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122248596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:29,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:29,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612242908] [2023-08-31 21:51:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:29,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:29,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:29,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:29,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:29,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states 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 21:51:29,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:29,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:29,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:30,417 INFO L130 PetriNetUnfolder]: 6317/12165 cut-off events. [2023-08-31 21:51:30,417 INFO L131 PetriNetUnfolder]: For 4343/4367 co-relation queries the response was YES. [2023-08-31 21:51:30,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28427 conditions, 12165 events. 6317/12165 cut-off events. For 4343/4367 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 101102 event pairs, 2560 based on Foata normal form. 24/10854 useless extension candidates. Maximal degree in co-relation 28408. Up to 5655 conditions per place. [2023-08-31 21:51:30,497 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 136 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2023-08-31 21:51:30,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 196 transitions, 921 flow [2023-08-31 21:51:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2047 transitions. [2023-08-31 21:51:30,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389678778304371 [2023-08-31 21:51:30,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2047 transitions. [2023-08-31 21:51:30,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2047 transitions. [2023-08-31 21:51:30,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:30,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2047 transitions. [2023-08-31 21:51:30,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states 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 21:51:30,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:30,508 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:30,508 INFO L175 Difference]: Start difference. First operand has 134 places, 109 transitions, 345 flow. Second operand 6 states and 2047 transitions. [2023-08-31 21:51:30,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 196 transitions, 921 flow [2023-08-31 21:51:30,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 196 transitions, 914 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:51:30,548 INFO L231 Difference]: Finished difference. Result has 134 places, 108 transitions, 346 flow [2023-08-31 21:51:30,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=134, PETRI_TRANSITIONS=108} [2023-08-31 21:51:30,549 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-31 21:51:30,549 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 108 transitions, 346 flow [2023-08-31 21:51:30,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states 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 21:51:30,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:30,550 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:30,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:51:30,550 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:30,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:30,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1557941288, now seen corresponding path program 1 times [2023-08-31 21:51:30,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:30,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038387992] [2023-08-31 21:51:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:30,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:30,767 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 21:51:30,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038387992] [2023-08-31 21:51:30,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038387992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:30,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:30,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:30,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053449501] [2023-08-31 21:51:30,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:30,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:30,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:30,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:30,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:31,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:31,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 108 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states 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 21:51:31,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:31,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:31,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:32,018 INFO L130 PetriNetUnfolder]: 6435/12376 cut-off events. [2023-08-31 21:51:32,018 INFO L131 PetriNetUnfolder]: For 4771/4816 co-relation queries the response was YES. [2023-08-31 21:51:32,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29021 conditions, 12376 events. 6435/12376 cut-off events. For 4771/4816 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 103413 event pairs, 2565 based on Foata normal form. 24/11096 useless extension candidates. Maximal degree in co-relation 29002. Up to 5585 conditions per place. [2023-08-31 21:51:32,171 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 136 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2023-08-31 21:51:32,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 195 transitions, 930 flow [2023-08-31 21:51:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2047 transitions. [2023-08-31 21:51:32,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389678778304371 [2023-08-31 21:51:32,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2047 transitions. [2023-08-31 21:51:32,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2047 transitions. [2023-08-31 21:51:32,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:32,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2047 transitions. [2023-08-31 21:51:32,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states 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 21:51:32,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:32,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:32,182 INFO L175 Difference]: Start difference. First operand has 134 places, 108 transitions, 346 flow. Second operand 6 states and 2047 transitions. [2023-08-31 21:51:32,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 195 transitions, 930 flow [2023-08-31 21:51:32,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 195 transitions, 912 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:51:32,204 INFO L231 Difference]: Finished difference. Result has 133 places, 107 transitions, 344 flow [2023-08-31 21:51:32,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=133, PETRI_TRANSITIONS=107} [2023-08-31 21:51:32,205 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2023-08-31 21:51:32,205 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 107 transitions, 344 flow [2023-08-31 21:51:32,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states 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 21:51:32,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:32,205 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:32,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:51:32,205 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:32,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1685568921, now seen corresponding path program 1 times [2023-08-31 21:51:32,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352390276] [2023-08-31 21:51:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:32,463 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 21:51:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:32,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352390276] [2023-08-31 21:51:32,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352390276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:32,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:32,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:32,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947716404] [2023-08-31 21:51:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:32,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:32,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:32,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:32,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-31 21:51:32,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 107 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states 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 21:51:32,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:32,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-31 21:51:32,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:33,730 INFO L130 PetriNetUnfolder]: 6470/12061 cut-off events. [2023-08-31 21:51:33,730 INFO L131 PetriNetUnfolder]: For 4829/4881 co-relation queries the response was YES. [2023-08-31 21:51:33,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29197 conditions, 12061 events. 6470/12061 cut-off events. For 4829/4881 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 97362 event pairs, 2624 based on Foata normal form. 34/10514 useless extension candidates. Maximal degree in co-relation 29178. Up to 6088 conditions per place. [2023-08-31 21:51:33,816 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 122 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2023-08-31 21:51:33,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 182 transitions, 868 flow [2023-08-31 21:51:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:33,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2034 transitions. [2023-08-31 21:51:33,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5355450236966824 [2023-08-31 21:51:33,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2034 transitions. [2023-08-31 21:51:33,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2034 transitions. [2023-08-31 21:51:33,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:33,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2034 transitions. [2023-08-31 21:51:33,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.0) internal successors, (2034), 6 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states 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 21:51:33,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:33,825 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:33,825 INFO L175 Difference]: Start difference. First operand has 133 places, 107 transitions, 344 flow. Second operand 6 states and 2034 transitions. [2023-08-31 21:51:33,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 182 transitions, 868 flow [2023-08-31 21:51:33,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 182 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:51:33,862 INFO L231 Difference]: Finished difference. Result has 132 places, 106 transitions, 342 flow [2023-08-31 21:51:33,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=132, PETRI_TRANSITIONS=106} [2023-08-31 21:51:33,863 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2023-08-31 21:51:33,863 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 106 transitions, 342 flow [2023-08-31 21:51:33,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states 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 21:51:33,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:51:33,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:33,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:51:33,864 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-31 21:51:33,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:51:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1163381815, now seen corresponding path program 1 times [2023-08-31 21:51:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:51:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587875585] [2023-08-31 21:51:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:51:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:51:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:51:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:51:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:51:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587875585] [2023-08-31 21:51:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587875585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:51:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:51:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:51:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524641983] [2023-08-31 21:51:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:51:34,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:51:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:51:34,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:51:34,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:51:34,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-31 21:51:34,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 106 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states 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 21:51:34,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:51:34,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-31 21:51:34,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:51:35,125 INFO L130 PetriNetUnfolder]: 5082/10653 cut-off events. [2023-08-31 21:51:35,126 INFO L131 PetriNetUnfolder]: For 3802/3854 co-relation queries the response was YES. [2023-08-31 21:51:35,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24736 conditions, 10653 events. 5082/10653 cut-off events. For 3802/3854 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 91994 event pairs, 2829 based on Foata normal form. 34/9374 useless extension candidates. Maximal degree in co-relation 24717. Up to 6532 conditions per place. [2023-08-31 21:51:35,160 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 0 selfloop transitions, 0 changer transitions 157/157 dead transitions. [2023-08-31 21:51:35,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 754 flow [2023-08-31 21:51:35,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:51:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:51:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2007 transitions. [2023-08-31 21:51:35,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284360189573459 [2023-08-31 21:51:35,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2007 transitions. [2023-08-31 21:51:35,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2007 transitions. [2023-08-31 21:51:35,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:51:35,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2007 transitions. [2023-08-31 21:51:35,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states 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 21:51:35,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:35,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states 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 21:51:35,174 INFO L175 Difference]: Start difference. First operand has 132 places, 106 transitions, 342 flow. Second operand 6 states and 2007 transitions. [2023-08-31 21:51:35,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 754 flow [2023-08-31 21:51:35,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 157 transitions, 736 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:51:35,205 INFO L231 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2023-08-31 21:51:35,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2023-08-31 21:51:35,205 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2023-08-31 21:51:35,206 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2023-08-31 21:51:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states 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 21:51:35,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-08-31 21:51:35,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-08-31 21:51:35,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-08-31 21:51:35,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-08-31 21:51:35,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-08-31 21:51:35,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-08-31 21:51:35,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-08-31 21:51:35,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-08-31 21:51:35,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-08-31 21:51:35,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-08-31 21:51:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-08-31 21:51:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-08-31 21:51:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-08-31 21:51:35,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-08-31 21:51:35,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:51:35,217 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:51:35,222 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:51:35,222 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:51:35,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:51:35 BasicIcfg [2023-08-31 21:51:35,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:51:35,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:51:35,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:51:35,226 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:51:35,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:51:01" (3/4) ... [2023-08-31 21:51:35,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:51:35,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:51:35,233 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:51:35,233 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:51:35,237 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-31 21:51:35,238 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:51:35,238 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:51:35,238 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:51:35,287 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:51:35,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:51:35,287 INFO L158 Benchmark]: Toolchain (without parser) took 35223.33ms. Allocated memory was 73.4MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 52.0MB in the beginning and 1.0GB in the end (delta: -948.4MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-08-31 21:51:35,288 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:51:35,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.14ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 39.4MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 21:51:35,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.85ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:51:35,288 INFO L158 Benchmark]: Boogie Preprocessor took 82.09ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 53.9MB in the end (delta: -16.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-31 21:51:35,289 INFO L158 Benchmark]: RCFGBuilder took 758.98ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 53.6MB in the beginning and 71.8MB in the end (delta: -18.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-31 21:51:35,289 INFO L158 Benchmark]: TraceAbstraction took 33999.34ms. Allocated memory was 102.8MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 71.3MB in the beginning and 1.0GB in the end (delta: -933.4MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-31 21:51:35,289 INFO L158 Benchmark]: Witness Printer took 61.38ms. Allocated memory is still 2.8GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:51:35,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.14ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 39.4MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.85ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.09ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 53.9MB in the end (delta: -16.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 758.98ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 53.6MB in the beginning and 71.8MB in the end (delta: -18.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 33999.34ms. Allocated memory was 102.8MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 71.3MB in the beginning and 1.0GB in the end (delta: -933.4MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 61.38ms. Allocated memory is still 2.8GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 322 PlacesBefore, 133 PlacesAfterwards, 327 TransitionsBefore, 133 TransitionsAfterwards, 21474 CoEnabledTransitionPairs, 8 FixpointIterations, 159 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 20 ConcurrentYvCompositions, 5 ChoiceCompositions, 283 TotalNumberOfCompositions, 137204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33159, independent: 31598, independent conditional: 0, independent unconditional: 31598, dependent: 1561, dependent conditional: 0, dependent unconditional: 1561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10021, independent: 9854, independent conditional: 0, independent unconditional: 9854, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33159, independent: 21744, independent conditional: 0, independent unconditional: 21744, dependent: 1394, dependent conditional: 0, dependent unconditional: 1394, unknown: 10021, unknown conditional: 0, unknown unconditional: 10021] , Statistics on independence cache: Total cache size (in pairs): 1611, Positive cache size: 1507, Positive conditional cache size: 0, Positive unconditional cache size: 1507, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: 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: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: 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: 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: 64]: 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: 64]: 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: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: 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: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: 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, 478 locations, 64 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: 33.8s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4433 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3064 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 1348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9675 IncrementalHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1348 mSolverCounterUnsat, 160 mSDtfsCounter, 9675 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 97 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=12, InterpolantAutomatonStates: 89, 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, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 1655 SizeOfPredicates, 19 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 23 InterpolantComputations, 14 PerfectInterpolantSequences, 21/30 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 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:51:35,318 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