./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:26:39,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:26:39,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:26:39,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:26:39,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:26:39,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:26:39,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:26:39,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:26:39,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:26:39,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:26:39,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:26:39,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:26:39,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:26:39,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:26:39,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:26:39,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:26:39,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:26:39,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:26:39,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:26:39,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:26:39,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:26:39,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:26:39,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:26:39,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:26:39,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:26:39,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:26:39,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:26:39,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:26:39,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:26:39,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:26:39,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:26:39,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:26:39,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:26:39,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:26:39,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:26:39,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:26:39,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:26:39,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:26:39,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:26:39,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:26:39,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:26:39,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:26:39,166 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:26:39,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:26:39,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:26:39,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:26:39,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:26:39,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:26:39,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:26:39,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:26:39,170 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:26:39,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:26:39,171 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:26:39,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:26:39,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:26:39,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:26:39,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:26:39,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:26:39,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:26:39,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:26:39,172 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:26:39,172 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:26:39,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:26:39,173 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:26:39,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:26:39,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:26:39,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:26:39,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:26:39,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:39,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:26:39,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:26:39,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:26:39,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:26:39,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:26:39,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:26:39,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:26:39,175 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:26:39,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:26:39,176 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:26:39,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:26:39,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:26:39,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:26:39,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:26:39,513 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:26:39,514 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:26:39,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-29 09:26:40,678 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:26:40,916 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:26:40,916 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-29 09:26:40,925 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca704949/98635bc9cb804e949ced2115acff1894/FLAG1ecfe306c [2023-08-29 09:26:40,942 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca704949/98635bc9cb804e949ced2115acff1894 [2023-08-29 09:26:40,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:26:40,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:26:40,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:40,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:26:40,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:26:40,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:40" (1/1) ... [2023-08-29 09:26:40,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423bc831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:40, skipping insertion in model container [2023-08-29 09:26:40,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:40" (1/1) ... [2023-08-29 09:26:40,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:26:41,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:26:41,343 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30203,30216] [2023-08-29 09:26:41,350 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30581,30594] [2023-08-29 09:26:41,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:41,380 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:26:41,420 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30203,30216] [2023-08-29 09:26:41,428 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i[30581,30594] [2023-08-29 09:26:41,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:41,475 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:26:41,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41 WrapperNode [2023-08-29 09:26:41,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:41,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:41,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:26:41,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:26:41,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,541 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-08-29 09:26:41,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:41,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:26:41,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:26:41,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:26:41,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:26:41,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:26:41,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:26:41,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:26:41,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (1/1) ... [2023-08-29 09:26:41,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:26:41,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 09:26:41,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 09:26:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:26:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-29 09:26:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-29 09:26:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:26:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:26:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:26:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:26:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:26:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:26:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:26:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:26:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:26:41,676 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 09:26:41,801 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:26:41,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:26:42,136 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:26:42,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:26:42,145 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-29 09:26:42,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:42 BoogieIcfgContainer [2023-08-29 09:26:42,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:26:42,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:26:42,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:26:42,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:26:42,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:26:40" (1/3) ... [2023-08-29 09:26:42,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629cfeae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:42, skipping insertion in model container [2023-08-29 09:26:42,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:41" (2/3) ... [2023-08-29 09:26:42,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629cfeae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:42, skipping insertion in model container [2023-08-29 09:26:42,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:42" (3/3) ... [2023-08-29 09:26:42,160 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-08-29 09:26:42,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:26:42,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:26:42,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-29 09:26:42,174 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:26:42,264 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 09:26:42,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 245 transitions, 506 flow [2023-08-29 09:26:42,387 INFO L130 PetriNetUnfolder]: 24/243 cut-off events. [2023-08-29 09:26:42,388 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:26:42,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 243 events. 24/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 738 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2023-08-29 09:26:42,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 245 transitions, 506 flow [2023-08-29 09:26:42,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 234 transitions, 477 flow [2023-08-29 09:26:42,407 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:26:42,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-29 09:26:42,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 234 transitions, 477 flow [2023-08-29 09:26:42,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 234 transitions, 477 flow [2023-08-29 09:26:42,470 INFO L130 PetriNetUnfolder]: 24/234 cut-off events. [2023-08-29 09:26:42,470 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:26:42,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 234 events. 24/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 733 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2023-08-29 09:26:42,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-29 09:26:44,539 INFO L134 LiptonReduction]: Checked pairs total: 127584 [2023-08-29 09:26:44,540 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-08-29 09:26:44,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:26:44,568 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;@c7dbfd5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:26:44,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-29 09:26:44,577 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 09:26:44,577 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:26:44,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:44,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:26:44,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:44,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:44,585 INFO L85 PathProgramCache]: Analyzing trace with hash 865377876, now seen corresponding path program 1 times [2023-08-29 09:26:44,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:44,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948223526] [2023-08-29 09:26:44,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:44,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948223526] [2023-08-29 09:26:44,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948223526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:44,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:44,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:44,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099684368] [2023-08-29 09:26:44,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:44,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:26:44,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:26:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:26:44,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 342 [2023-08-29 09:26:44,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 157 transitions, 323 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:44,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:44,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 342 [2023-08-29 09:26:44,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:45,304 INFO L130 PetriNetUnfolder]: 1416/4269 cut-off events. [2023-08-29 09:26:45,304 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-29 09:26:45,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6241 conditions, 4269 events. 1416/4269 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 35489 event pairs, 1080 based on Foata normal form. 269/3781 useless extension candidates. Maximal degree in co-relation 6064. Up to 1910 conditions per place. [2023-08-29 09:26:45,338 INFO L137 encePairwiseOnDemand]: 328/342 looper letters, 43 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2023-08-29 09:26:45,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 141 transitions, 377 flow [2023-08-29 09:26:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:26:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:26:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 511 transitions. [2023-08-29 09:26:45,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7470760233918129 [2023-08-29 09:26:45,355 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 511 transitions. [2023-08-29 09:26:45,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 511 transitions. [2023-08-29 09:26:45,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:45,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 511 transitions. [2023-08-29 09:26:45,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 255.5) internal successors, (511), 2 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:45,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 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) [2023-08-29 09:26:45,371 INFO L81 ComplementDD]: Finished complementDD. Result has 3 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) [2023-08-29 09:26:45,372 INFO L175 Difference]: Start difference. First operand has 140 places, 157 transitions, 323 flow. Second operand 2 states and 511 transitions. [2023-08-29 09:26:45,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 141 transitions, 377 flow [2023-08-29 09:26:45,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 372 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 09:26:45,382 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 286 flow [2023-08-29 09:26:45,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=134, PETRI_TRANSITIONS=141} [2023-08-29 09:26:45,387 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -6 predicate places. [2023-08-29 09:26:45,387 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 286 flow [2023-08-29 09:26:45,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:45,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:45,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 09:26:45,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:26:45,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:45,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1055108706, now seen corresponding path program 1 times [2023-08-29 09:26:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:45,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174822939] [2023-08-29 09:26:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:45,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174822939] [2023-08-29 09:26:45,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174822939] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:45,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:45,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:45,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760592306] [2023-08-29 09:26:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:45,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:45,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:45,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-29 09:26:45,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:45,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:45,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-29 09:26:45,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:45,978 INFO L130 PetriNetUnfolder]: 1847/5060 cut-off events. [2023-08-29 09:26:45,984 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:26:45,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7686 conditions, 5060 events. 1847/5060 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 41197 event pairs, 1281 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 7683. Up to 2345 conditions per place. [2023-08-29 09:26:46,062 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 68 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2023-08-29 09:26:46,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 480 flow [2023-08-29 09:26:46,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-29 09:26:46,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-29 09:26:46,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-29 09:26:46,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-29 09:26:46,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:46,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-29 09:26:46,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,084 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 286 flow. Second operand 3 states and 727 transitions. [2023-08-29 09:26:46,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 480 flow [2023-08-29 09:26:46,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 165 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:26:46,089 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 316 flow [2023-08-29 09:26:46,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=138, PETRI_TRANSITIONS=144} [2023-08-29 09:26:46,090 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, -2 predicate places. [2023-08-29 09:26:46,090 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 316 flow [2023-08-29 09:26:46,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:46,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:46,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:26:46,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:46,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:46,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1735749835, now seen corresponding path program 1 times [2023-08-29 09:26:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690650180] [2023-08-29 09:26:46,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:46,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:46,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690650180] [2023-08-29 09:26:46,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690650180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:46,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:46,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:46,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694047408] [2023-08-29 09:26:46,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:46,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:46,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:46,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:46,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:46,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 342 [2023-08-29 09:26:46,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 144 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:46,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 342 [2023-08-29 09:26:46,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:46,685 INFO L130 PetriNetUnfolder]: 1870/5228 cut-off events. [2023-08-29 09:26:46,685 INFO L131 PetriNetUnfolder]: For 326/367 co-relation queries the response was YES. [2023-08-29 09:26:46,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8226 conditions, 5228 events. 1870/5228 cut-off events. For 326/367 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 43544 event pairs, 1258 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8221. Up to 2394 conditions per place. [2023-08-29 09:26:46,722 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 69 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2023-08-29 09:26:46,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 169 transitions, 523 flow [2023-08-29 09:26:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:46,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:46,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-08-29 09:26:46,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2023-08-29 09:26:46,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-08-29 09:26:46,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-08-29 09:26:46,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:46,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-08-29 09:26:46,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,732 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 316 flow. Second operand 3 states and 726 transitions. [2023-08-29 09:26:46,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 169 transitions, 523 flow [2023-08-29 09:26:46,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 169 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:46,738 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 338 flow [2023-08-29 09:26:46,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2023-08-29 09:26:46,739 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2023-08-29 09:26:46,740 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 338 flow [2023-08-29 09:26:46,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:46,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:46,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:26:46,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:46,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2121366934, now seen corresponding path program 1 times [2023-08-29 09:26:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:46,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390536630] [2023-08-29 09:26:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390536630] [2023-08-29 09:26:46,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390536630] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:46,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140814488] [2023-08-29 09:26:46,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:46,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:46,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:46,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:46,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-29 09:26:46,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:46,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:46,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-29 09:26:46,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:47,329 INFO L130 PetriNetUnfolder]: 1985/5685 cut-off events. [2023-08-29 09:26:47,330 INFO L131 PetriNetUnfolder]: For 474/543 co-relation queries the response was YES. [2023-08-29 09:26:47,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9043 conditions, 5685 events. 1985/5685 cut-off events. For 474/543 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 48740 event pairs, 1295 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 9037. Up to 2537 conditions per place. [2023-08-29 09:26:47,360 INFO L137 encePairwiseOnDemand]: 336/342 looper letters, 69 selfloop transitions, 5 changer transitions 0/172 dead transitions. [2023-08-29 09:26:47,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 548 flow [2023-08-29 09:26:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:47,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-29 09:26:47,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-29 09:26:47,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-29 09:26:47,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-29 09:26:47,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:47,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-29 09:26:47,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:47,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:47,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:47,370 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 338 flow. Second operand 3 states and 729 transitions. [2023-08-29 09:26:47,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 548 flow [2023-08-29 09:26:47,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:47,376 INFO L231 Difference]: Finished difference. Result has 142 places, 151 transitions, 368 flow [2023-08-29 09:26:47,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=142, PETRI_TRANSITIONS=151} [2023-08-29 09:26:47,379 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 2 predicate places. [2023-08-29 09:26:47,379 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 151 transitions, 368 flow [2023-08-29 09:26:47,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:47,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:47,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:47,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:26:47,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:47,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:47,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1475869747, now seen corresponding path program 1 times [2023-08-29 09:26:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:47,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820566999] [2023-08-29 09:26:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:47,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:47,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:47,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820566999] [2023-08-29 09:26:47,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820566999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:47,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:47,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:47,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253276722] [2023-08-29 09:26:47,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:47,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:47,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:47,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:47,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 342 [2023-08-29 09:26:47,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 151 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:47,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:47,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 342 [2023-08-29 09:26:47,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:48,466 INFO L130 PetriNetUnfolder]: 4917/12145 cut-off events. [2023-08-29 09:26:48,466 INFO L131 PetriNetUnfolder]: For 914/1067 co-relation queries the response was YES. [2023-08-29 09:26:48,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 12145 events. 4917/12145 cut-off events. For 914/1067 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 108414 event pairs, 1506 based on Foata normal form. 0/10585 useless extension candidates. Maximal degree in co-relation 21297. Up to 4429 conditions per place. [2023-08-29 09:26:48,545 INFO L137 encePairwiseOnDemand]: 314/342 looper letters, 111 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-29 09:26:48,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 212 transitions, 785 flow [2023-08-29 09:26:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-08-29 09:26:48,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7105263157894737 [2023-08-29 09:26:48,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-08-29 09:26:48,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-08-29 09:26:48,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:48,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-08-29 09:26:48,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:48,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:48,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:48,554 INFO L175 Difference]: Start difference. First operand has 142 places, 151 transitions, 368 flow. Second operand 3 states and 729 transitions. [2023-08-29 09:26:48,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 212 transitions, 785 flow [2023-08-29 09:26:48,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 212 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:48,561 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 546 flow [2023-08-29 09:26:48,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=144, PETRI_TRANSITIONS=172} [2023-08-29 09:26:48,563 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 4 predicate places. [2023-08-29 09:26:48,563 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 546 flow [2023-08-29 09:26:48,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:48,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:48,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:48,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:26:48,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:48,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1683730201, now seen corresponding path program 1 times [2023-08-29 09:26:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:48,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601697955] [2023-08-29 09:26:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:48,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:48,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601697955] [2023-08-29 09:26:48,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601697955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:48,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:48,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:48,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828595462] [2023-08-29 09:26:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:48,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:48,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 342 [2023-08-29 09:26:48,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 172 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:48,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:48,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 342 [2023-08-29 09:26:48,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:49,455 INFO L130 PetriNetUnfolder]: 3802/10948 cut-off events. [2023-08-29 09:26:49,455 INFO L131 PetriNetUnfolder]: For 2215/2454 co-relation queries the response was YES. [2023-08-29 09:26:49,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19915 conditions, 10948 events. 3802/10948 cut-off events. For 2215/2454 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 105577 event pairs, 2335 based on Foata normal form. 36/9424 useless extension candidates. Maximal degree in co-relation 19907. Up to 5049 conditions per place. [2023-08-29 09:26:49,555 INFO L137 encePairwiseOnDemand]: 337/342 looper letters, 79 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2023-08-29 09:26:49,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 200 transitions, 805 flow [2023-08-29 09:26:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2023-08-29 09:26:49,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7085769980506823 [2023-08-29 09:26:49,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 727 transitions. [2023-08-29 09:26:49,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 727 transitions. [2023-08-29 09:26:49,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:49,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 727 transitions. [2023-08-29 09:26:49,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:49,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:49,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:49,564 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 546 flow. Second operand 3 states and 727 transitions. [2023-08-29 09:26:49,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 200 transitions, 805 flow [2023-08-29 09:26:49,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 200 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:49,581 INFO L231 Difference]: Finished difference. Result has 145 places, 175 transitions, 535 flow [2023-08-29 09:26:49,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=145, PETRI_TRANSITIONS=175} [2023-08-29 09:26:49,584 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2023-08-29 09:26:49,584 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 175 transitions, 535 flow [2023-08-29 09:26:49,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:49,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:49,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:49,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:26:49,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:49,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1741418017, now seen corresponding path program 1 times [2023-08-29 09:26:49,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:49,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680295298] [2023-08-29 09:26:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:49,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:49,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680295298] [2023-08-29 09:26:49,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680295298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:49,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:49,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:49,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169569504] [2023-08-29 09:26:49,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:49,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:49,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:49,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:49,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:49,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 342 [2023-08-29 09:26:49,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 175 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:49,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:49,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 342 [2023-08-29 09:26:49,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:50,470 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 37#L727-1true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,471 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 09:26:50,471 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 09:26:50,471 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 09:26:50,471 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 09:26:50,471 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,471 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([682] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [130#L693-4true, Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 144#L727-4true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,472 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,472 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,473 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,473 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), 162#L742-4true, thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,473 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,473 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,473 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,473 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,596 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 37#L727-1true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,596 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,597 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 09:26:50,597 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,597 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 09:26:50,597 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([681] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [265#(= ~y~0 0), 130#L693-4true, Black: 252#true, 4#L727-5true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,598 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([682] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [130#L693-4true, Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 144#L727-4true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,598 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,598 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,599 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,600 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([744] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 252#true, 231#true, Black: 242#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 260#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 96#L743-6true, 135#L727-2true, Black: 248#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 155#L693-1true, 263#true, Black: 236#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 258#true]) [2023-08-29 09:26:50,600 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,600 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 09:26:50,600 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,600 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 09:26:50,827 INFO L130 PetriNetUnfolder]: 5891/15039 cut-off events. [2023-08-29 09:26:50,827 INFO L131 PetriNetUnfolder]: For 2184/2683 co-relation queries the response was YES. [2023-08-29 09:26:50,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28900 conditions, 15039 events. 5891/15039 cut-off events. For 2184/2683 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 146404 event pairs, 2033 based on Foata normal form. 236/13461 useless extension candidates. Maximal degree in co-relation 28891. Up to 5300 conditions per place. [2023-08-29 09:26:50,919 INFO L137 encePairwiseOnDemand]: 323/342 looper letters, 119 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2023-08-29 09:26:50,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 234 transitions, 970 flow [2023-08-29 09:26:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2023-08-29 09:26:50,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.723196881091618 [2023-08-29 09:26:50,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2023-08-29 09:26:50,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2023-08-29 09:26:50,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:50,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2023-08-29 09:26:50,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:50,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:50,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:50,926 INFO L175 Difference]: Start difference. First operand has 145 places, 175 transitions, 535 flow. Second operand 3 states and 742 transitions. [2023-08-29 09:26:50,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 234 transitions, 970 flow [2023-08-29 09:26:50,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 234 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:50,935 INFO L231 Difference]: Finished difference. Result has 148 places, 185 transitions, 630 flow [2023-08-29 09:26:50,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=148, PETRI_TRANSITIONS=185} [2023-08-29 09:26:50,936 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2023-08-29 09:26:50,936 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 185 transitions, 630 flow [2023-08-29 09:26:50,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:50,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:50,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:50,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:26:50,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:50,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1741455529, now seen corresponding path program 1 times [2023-08-29 09:26:50,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:50,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913566240] [2023-08-29 09:26:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:50,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:50,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913566240] [2023-08-29 09:26:50,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913566240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:50,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:50,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:50,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700450089] [2023-08-29 09:26:50,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:50,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:50,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:50,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:50,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:51,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 342 [2023-08-29 09:26:51,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 185 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:51,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:51,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 342 [2023-08-29 09:26:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:52,243 INFO L130 PetriNetUnfolder]: 5347/14337 cut-off events. [2023-08-29 09:26:52,243 INFO L131 PetriNetUnfolder]: For 3447/3866 co-relation queries the response was YES. [2023-08-29 09:26:52,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28989 conditions, 14337 events. 5347/14337 cut-off events. For 3447/3866 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 143785 event pairs, 3225 based on Foata normal form. 56/12820 useless extension candidates. Maximal degree in co-relation 28979. Up to 7639 conditions per place. [2023-08-29 09:26:52,320 INFO L137 encePairwiseOnDemand]: 333/342 looper letters, 91 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2023-08-29 09:26:52,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 944 flow [2023-08-29 09:26:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2023-08-29 09:26:52,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2023-08-29 09:26:52,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2023-08-29 09:26:52,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2023-08-29 09:26:52,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:52,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2023-08-29 09:26:52,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:52,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:52,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:52,332 INFO L175 Difference]: Start difference. First operand has 148 places, 185 transitions, 630 flow. Second operand 3 states and 712 transitions. [2023-08-29 09:26:52,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 944 flow [2023-08-29 09:26:52,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 218 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:52,344 INFO L231 Difference]: Finished difference. Result has 149 places, 197 transitions, 722 flow [2023-08-29 09:26:52,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=149, PETRI_TRANSITIONS=197} [2023-08-29 09:26:52,347 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2023-08-29 09:26:52,347 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 197 transitions, 722 flow [2023-08-29 09:26:52,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:26:52,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:52,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:52,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 09:26:52,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:26:52,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:52,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2035874648, now seen corresponding path program 1 times [2023-08-29 09:26:52,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:52,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468157517] [2023-08-29 09:26:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:52,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:52,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:26:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:52,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:26:52,402 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:26:52,403 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-08-29 09:26:52,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-08-29 09:26:52,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-08-29 09:26:52,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-08-29 09:26:52,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-08-29 09:26:52,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-08-29 09:26:52,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-08-29 09:26:52,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-08-29 09:26:52,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-08-29 09:26:52,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-08-29 09:26:52,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-08-29 09:26:52,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-08-29 09:26:52,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-08-29 09:26:52,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2023-08-29 09:26:52,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2023-08-29 09:26:52,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-08-29 09:26:52,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-08-29 09:26:52,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-08-29 09:26:52,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-08-29 09:26:52,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-08-29 09:26:52,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-08-29 09:26:52,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-08-29 09:26:52,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-08-29 09:26:52,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-08-29 09:26:52,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-08-29 09:26:52,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-08-29 09:26:52,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-08-29 09:26:52,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-08-29 09:26:52,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 09:26:52,425 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:52,434 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 09:26:52,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 09:26:52,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:26:52 BasicIcfg [2023-08-29 09:26:52,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 09:26:52,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 09:26:52,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 09:26:52,476 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 09:26:52,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:42" (3/4) ... [2023-08-29 09:26:52,478 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 09:26:52,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 09:26:52,479 INFO L158 Benchmark]: Toolchain (without parser) took 11530.93ms. Allocated memory was 65.0MB in the beginning and 2.3GB in the end (delta: 2.3GB). Free memory was 42.0MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 393.0MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,479 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:26:52,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.83ms. Allocated memory is still 65.0MB. Free memory was 41.9MB in the beginning and 36.8MB in the end (delta: 5.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.82ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 34.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,481 INFO L158 Benchmark]: Boogie Preprocessor took 58.95ms. Allocated memory is still 65.0MB. Free memory was 34.7MB in the beginning and 32.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,482 INFO L158 Benchmark]: RCFGBuilder took 544.49ms. Allocated memory is still 65.0MB. Free memory was 32.8MB in the beginning and 28.5MB in the end (delta: 4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,482 INFO L158 Benchmark]: TraceAbstraction took 10326.88ms. Allocated memory was 65.0MB in the beginning and 2.3GB in the end (delta: 2.3GB). Free memory was 27.9MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 375.4MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,482 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 2.3GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:52,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.83ms. Allocated memory is still 65.0MB. Free memory was 41.9MB in the beginning and 36.8MB in the end (delta: 5.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.82ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 34.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.95ms. Allocated memory is still 65.0MB. Free memory was 34.7MB in the beginning and 32.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.49ms. Allocated memory is still 65.0MB. Free memory was 32.8MB in the beginning and 28.5MB in the end (delta: 4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10326.88ms. Allocated memory was 65.0MB in the beginning and 2.3GB in the end (delta: 2.3GB). Free memory was 27.9MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 375.4MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 2.3GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 217 PlacesBefore, 140 PlacesAfterwards, 234 TransitionsBefore, 157 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 97 TotalNumberOfCompositions, 127584 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47122, independent: 45739, independent conditional: 0, independent unconditional: 45739, dependent: 1383, dependent conditional: 0, dependent unconditional: 1383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11235, independent: 11030, independent conditional: 0, independent unconditional: 11030, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47122, independent: 34709, independent conditional: 0, independent unconditional: 34709, dependent: 1178, dependent conditional: 0, dependent unconditional: 1178, unknown: 11235, unknown conditional: 0, unknown unconditional: 11235] , Statistics on independence cache: Total cache size (in pairs): 3579, Positive cache size: 3435, Positive conditional cache size: 0, Positive unconditional cache size: 3435, Negative cache size: 144, Negative conditional cache size: 0, Negative unconditional cache size: 144, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, _={0:0}, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, x=0, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x = 1=51, x = 2=52, x=2, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 392 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: 10.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1009 IncrementalHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 48 mSDtfsCounter, 1009 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=722occurred in iteration=8, InterpolantAutomatonStates: 23, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 09:26:52,532 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE