./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/peterson-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/peterson-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 a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 --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 09:26:45,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:26:45,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:26:45,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:26:45,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:26:45,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:26:45,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:26:45,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:26:45,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:26:45,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:26:45,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:26:45,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:26:45,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:26:45,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:26:45,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:26:45,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:26:45,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:26:45,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:26:45,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:26:45,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:26:45,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:26:45,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:26:45,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:26:45,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:26:45,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:26:45,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:26:45,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:26:45,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:26:45,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:26:45,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:26:45,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:26:45,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:26:45,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:26:45,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:26:45,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:26:45,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:26:45,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:26:45,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:26:45,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:26:45,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:26:45,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:26:45,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:26:45,297 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:26:45,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:26:45,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:26:45,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:26:45,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:26:45,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:26:45,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:26:45,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:26:45,300 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:26:45,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:26:45,301 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:26:45,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:26:45,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:26:45,303 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:26:45,303 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:26:45,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:26:45,303 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:26:45,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:26:45,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:26:45,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:26:45,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:26:45,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:45,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:26:45,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:26:45,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:26:45,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:26:45,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:26:45,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:26:45,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:26:45,306 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:26:45,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:26:45,306 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:26:45,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:26:45,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:26:45,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:26:45,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:26:45,628 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:26:45,629 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:26:45,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-29 09:26:46,763 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:26:46,997 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:26:47,001 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-29 09:26:47,013 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86b715eb/58dc33fc513746d4aa1ad10ddb26ec7b/FLAG452513394 [2023-08-29 09:26:47,028 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86b715eb/58dc33fc513746d4aa1ad10ddb26ec7b [2023-08-29 09:26:47,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:26:47,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:26:47,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:47,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:26:47,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:26:47,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4d4607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47, skipping insertion in model container [2023-08-29 09:26:47,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:26:47,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:26:47,430 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/peterson-b.i[30010,30023] [2023-08-29 09:26:47,434 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/peterson-b.i[30174,30187] [2023-08-29 09:26:47,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:47,451 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:26:47,493 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/peterson-b.i[30010,30023] [2023-08-29 09:26:47,501 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/peterson-b.i[30174,30187] [2023-08-29 09:26:47,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:26:47,554 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:26:47,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47 WrapperNode [2023-08-29 09:26:47,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:26:47,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:47,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:26:47,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:26:47,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,620 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-29 09:26:47,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:26:47,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:26:47,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:26:47,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:26:47,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:26:47,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:26:47,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:26:47,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:26:47,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (1/1) ... [2023-08-29 09:26:47,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:26:47,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:26:47,722 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 09:26:47,751 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 09:26:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:26:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-29 09:26:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-29 09:26:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:26:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:26:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:26:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:26:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:26:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:26:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:26:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:26:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:26:47,771 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 09:26:47,936 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:26:47,938 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:26:48,139 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:26:48,146 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:26:48,147 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 09:26:48,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:48 BoogieIcfgContainer [2023-08-29 09:26:48,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:26:48,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:26:48,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:26:48,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:26:48,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:26:47" (1/3) ... [2023-08-29 09:26:48,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c0376a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:48, skipping insertion in model container [2023-08-29 09:26:48,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:26:47" (2/3) ... [2023-08-29 09:26:48,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c0376a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:26:48, skipping insertion in model container [2023-08-29 09:26:48,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:48" (3/3) ... [2023-08-29 09:26:48,156 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2023-08-29 09:26:48,163 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:26:48,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:26:48,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-29 09:26:48,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:26:48,264 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 09:26:48,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 152 transitions, 320 flow [2023-08-29 09:26:48,346 INFO L130 PetriNetUnfolder]: 8/150 cut-off events. [2023-08-29 09:26:48,347 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:26:48,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 150 events. 8/150 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-08-29 09:26:48,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 152 transitions, 320 flow [2023-08-29 09:26:48,366 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 141 transitions, 291 flow [2023-08-29 09:26:48,370 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:26:48,379 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-29 09:26:48,385 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-29 09:26:48,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 141 transitions, 291 flow [2023-08-29 09:26:48,413 INFO L130 PetriNetUnfolder]: 8/141 cut-off events. [2023-08-29 09:26:48,413 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:26:48,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 141 events. 8/141 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-08-29 09:26:48,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 8036 [2023-08-29 09:26:50,402 INFO L134 LiptonReduction]: Checked pairs total: 29409 [2023-08-29 09:26:50,402 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-29 09:26:50,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:26:50,421 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;@4f1ce9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:26:50,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-29 09:26:50,424 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 09:26:50,424 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:26:50,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:50,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:26:50,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:50,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:50,430 INFO L85 PathProgramCache]: Analyzing trace with hash 523245175, now seen corresponding path program 1 times [2023-08-29 09:26:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982080054] [2023-08-29 09:26:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:50,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 09:26:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:50,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982080054] [2023-08-29 09:26:50,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982080054] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:50,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:50,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151530879] [2023-08-29 09:26:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:50,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:50,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:50,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-29 09:26:50,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 09:26:50,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:50,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-29 09:26:50,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:50,973 INFO L130 PetriNetUnfolder]: 638/1551 cut-off events. [2023-08-29 09:26:50,973 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-29 09:26:50,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2637 conditions, 1551 events. 638/1551 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 9758 event pairs, 499 based on Foata normal form. 88/1441 useless extension candidates. Maximal degree in co-relation 2510. Up to 975 conditions per place. [2023-08-29 09:26:50,986 INFO L137 encePairwiseOnDemand]: 222/232 looper letters, 48 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-29 09:26:50,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 282 flow [2023-08-29 09:26:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-29 09:26:51,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2023-08-29 09:26:51,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-29 09:26:51,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-29 09:26:51,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:51,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-29 09:26:51,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 09:26:51,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,026 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 159 flow. Second operand 3 states and 466 transitions. [2023-08-29 09:26:51,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 282 flow [2023-08-29 09:26:51,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 276 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 09:26:51,032 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 157 flow [2023-08-29 09:26:51,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2023-08-29 09:26:51,036 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-08-29 09:26:51,037 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 157 flow [2023-08-29 09:26:51,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 09:26:51,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:51,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:51,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:26:51,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:51,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:51,039 INFO L85 PathProgramCache]: Analyzing trace with hash 389125514, now seen corresponding path program 1 times [2023-08-29 09:26:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:51,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737702887] [2023-08-29 09:26:51,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:51,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:51,096 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 09:26:51,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:51,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737702887] [2023-08-29 09:26:51,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737702887] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:51,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:51,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:51,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312648279] [2023-08-29 09:26:51,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:51,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:51,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:51,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:51,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-29 09:26:51,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 09:26:51,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:51,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-29 09:26:51,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:51,307 INFO L130 PetriNetUnfolder]: 722/1733 cut-off events. [2023-08-29 09:26:51,308 INFO L131 PetriNetUnfolder]: For 130/146 co-relation queries the response was YES. [2023-08-29 09:26:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 1733 events. 722/1733 cut-off events. For 130/146 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10948 event pairs, 548 based on Foata normal form. 0/1513 useless extension candidates. Maximal degree in co-relation 2388. Up to 1094 conditions per place. [2023-08-29 09:26:51,318 INFO L137 encePairwiseOnDemand]: 228/232 looper letters, 51 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-29 09:26:51,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 308 flow [2023-08-29 09:26:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2023-08-29 09:26:51,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6594827586206896 [2023-08-29 09:26:51,321 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2023-08-29 09:26:51,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2023-08-29 09:26:51,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:51,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2023-08-29 09:26:51,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states 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 09:26:51,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,325 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 157 flow. Second operand 3 states and 459 transitions. [2023-08-29 09:26:51,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 308 flow [2023-08-29 09:26:51,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:51,328 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 173 flow [2023-08-29 09:26:51,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2023-08-29 09:26:51,329 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-08-29 09:26:51,329 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 173 flow [2023-08-29 09:26:51,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 09:26:51,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:51,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:51,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:26:51,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:51,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:51,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1562907487, now seen corresponding path program 1 times [2023-08-29 09:26:51,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:51,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977994468] [2023-08-29 09:26:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:51,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:51,364 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 09:26:51,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:51,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977994468] [2023-08-29 09:26:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977994468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284251303] [2023-08-29 09:26:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:51,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:51,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:51,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:51,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-29 09:26:51,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 09:26:51,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:51,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-29 09:26:51,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:51,580 INFO L130 PetriNetUnfolder]: 761/1822 cut-off events. [2023-08-29 09:26:51,580 INFO L131 PetriNetUnfolder]: For 117/172 co-relation queries the response was YES. [2023-08-29 09:26:51,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 1822 events. 761/1822 cut-off events. For 117/172 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11695 event pairs, 568 based on Foata normal form. 21/1618 useless extension candidates. Maximal degree in co-relation 2642. Up to 1174 conditions per place. [2023-08-29 09:26:51,590 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 50 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-08-29 09:26:51,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 88 transitions, 320 flow [2023-08-29 09:26:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-08-29 09:26:51,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6537356321839081 [2023-08-29 09:26:51,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-08-29 09:26:51,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-08-29 09:26:51,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:51,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-08-29 09:26:51,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 09:26:51,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,596 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 173 flow. Second operand 3 states and 455 transitions. [2023-08-29 09:26:51,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 88 transitions, 320 flow [2023-08-29 09:26:51,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 88 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:51,600 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 196 flow [2023-08-29 09:26:51,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2023-08-29 09:26:51,602 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2023-08-29 09:26:51,602 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 196 flow [2023-08-29 09:26:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 09:26:51,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:51,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:26:51,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:51,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:51,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1284396780, now seen corresponding path program 1 times [2023-08-29 09:26:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:51,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62951185] [2023-08-29 09:26:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:51,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:51,660 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 09:26:51,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:51,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62951185] [2023-08-29 09:26:51,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62951185] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:51,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:51,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287584681] [2023-08-29 09:26:51,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:51,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:51,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:51,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:51,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-29 09:26:51,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 09:26:51,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:51,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-29 09:26:51,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:51,953 INFO L130 PetriNetUnfolder]: 1212/2877 cut-off events. [2023-08-29 09:26:51,953 INFO L131 PetriNetUnfolder]: For 276/340 co-relation queries the response was YES. [2023-08-29 09:26:51,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5339 conditions, 2877 events. 1212/2877 cut-off events. For 276/340 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 20426 event pairs, 357 based on Foata normal form. 18/2553 useless extension candidates. Maximal degree in co-relation 4642. Up to 1103 conditions per place. [2023-08-29 09:26:51,969 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 65 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2023-08-29 09:26:51,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 407 flow [2023-08-29 09:26:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:51,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-29 09:26:51,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-29 09:26:51,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-29 09:26:51,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-29 09:26:51,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:51,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-29 09:26:51,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states 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 09:26:51,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:51,978 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 196 flow. Second operand 3 states and 476 transitions. [2023-08-29 09:26:51,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 407 flow [2023-08-29 09:26:51,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 103 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:51,984 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 240 flow [2023-08-29 09:26:51,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2023-08-29 09:26:51,986 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2023-08-29 09:26:51,986 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 240 flow [2023-08-29 09:26:51,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 09:26:51,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:51,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:51,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:26:51,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:51,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash 326260243, now seen corresponding path program 1 times [2023-08-29 09:26:51,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:51,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057719811] [2023-08-29 09:26:51,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:52,043 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 09:26:52,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:52,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057719811] [2023-08-29 09:26:52,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057719811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:52,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:52,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:52,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177926178] [2023-08-29 09:26:52,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:52,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:52,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:52,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:52,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-29 09:26:52,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 09:26:52,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:52,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-29 09:26:52,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:52,315 INFO L130 PetriNetUnfolder]: 1278/2941 cut-off events. [2023-08-29 09:26:52,315 INFO L131 PetriNetUnfolder]: For 478/557 co-relation queries the response was YES. [2023-08-29 09:26:52,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5614 conditions, 2941 events. 1278/2941 cut-off events. For 478/557 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20724 event pairs, 844 based on Foata normal form. 25/2551 useless extension candidates. Maximal degree in co-relation 4920. Up to 1892 conditions per place. [2023-08-29 09:26:52,333 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 54 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2023-08-29 09:26:52,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 97 transitions, 403 flow [2023-08-29 09:26:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2023-08-29 09:26:52,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2023-08-29 09:26:52,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2023-08-29 09:26:52,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2023-08-29 09:26:52,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:52,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2023-08-29 09:26:52,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 09:26:52,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:52,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:52,339 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 240 flow. Second operand 3 states and 456 transitions. [2023-08-29 09:26:52,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 97 transitions, 403 flow [2023-08-29 09:26:52,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:52,343 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 261 flow [2023-08-29 09:26:52,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2023-08-29 09:26:52,344 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2023-08-29 09:26:52,344 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 261 flow [2023-08-29 09:26:52,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 09:26:52,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:52,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:52,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:26:52,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:52,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash 3616118, now seen corresponding path program 1 times [2023-08-29 09:26:52,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:52,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952888881] [2023-08-29 09:26:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:52,369 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 09:26:52,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952888881] [2023-08-29 09:26:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952888881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:52,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:52,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444523825] [2023-08-29 09:26:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:52,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:52,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-29 09:26:52,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 09:26:52,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:52,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-29 09:26:52,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:52,781 INFO L130 PetriNetUnfolder]: 1895/4290 cut-off events. [2023-08-29 09:26:52,781 INFO L131 PetriNetUnfolder]: For 808/989 co-relation queries the response was YES. [2023-08-29 09:26:52,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8481 conditions, 4290 events. 1895/4290 cut-off events. For 808/989 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 32238 event pairs, 518 based on Foata normal form. 73/3874 useless extension candidates. Maximal degree in co-relation 5982. Up to 1584 conditions per place. [2023-08-29 09:26:52,807 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 68 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2023-08-29 09:26:52,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 112 transitions, 490 flow [2023-08-29 09:26:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2023-08-29 09:26:52,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6795977011494253 [2023-08-29 09:26:52,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2023-08-29 09:26:52,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2023-08-29 09:26:52,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:52,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2023-08-29 09:26:52,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states 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 09:26:52,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:52,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:52,813 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 261 flow. Second operand 3 states and 473 transitions. [2023-08-29 09:26:52,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 112 transitions, 490 flow [2023-08-29 09:26:52,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 112 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:26:52,817 INFO L231 Difference]: Finished difference. Result has 81 places, 87 transitions, 304 flow [2023-08-29 09:26:52,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=81, PETRI_TRANSITIONS=87} [2023-08-29 09:26:52,818 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-08-29 09:26:52,818 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 87 transitions, 304 flow [2023-08-29 09:26:52,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 09:26:52,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:52,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:52,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:26:52,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:52,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:52,820 INFO L85 PathProgramCache]: Analyzing trace with hash 399601406, now seen corresponding path program 1 times [2023-08-29 09:26:52,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:52,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091933210] [2023-08-29 09:26:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:52,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:26:52,840 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 09:26:52,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:26:52,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091933210] [2023-08-29 09:26:52,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091933210] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:26:52,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:26:52,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:26:52,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485553259] [2023-08-29 09:26:52,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:26:52,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:26:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:26:52,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:26:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:26:52,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-29 09:26:52,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 87 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 09:26:52,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:26:52,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-29 09:26:52,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:26:53,530 INFO L130 PetriNetUnfolder]: 3911/8658 cut-off events. [2023-08-29 09:26:53,530 INFO L131 PetriNetUnfolder]: For 2585/2852 co-relation queries the response was YES. [2023-08-29 09:26:53,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17680 conditions, 8658 events. 3911/8658 cut-off events. For 2585/2852 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 73093 event pairs, 1257 based on Foata normal form. 53/7700 useless extension candidates. Maximal degree in co-relation 12490. Up to 3198 conditions per place. [2023-08-29 09:26:53,656 INFO L137 encePairwiseOnDemand]: 224/232 looper letters, 83 selfloop transitions, 8 changer transitions 0/129 dead transitions. [2023-08-29 09:26:53,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 129 transitions, 621 flow [2023-08-29 09:26:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:26:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:26:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-29 09:26:53,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-29 09:26:53,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-29 09:26:53,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-29 09:26:53,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:26:53,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-29 09:26:53,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states 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 09:26:53,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:53,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 09:26:53,661 INFO L175 Difference]: Start difference. First operand has 81 places, 87 transitions, 304 flow. Second operand 3 states and 476 transitions. [2023-08-29 09:26:53,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 129 transitions, 621 flow [2023-08-29 09:26:53,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 129 transitions, 607 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:26:53,668 INFO L231 Difference]: Finished difference. Result has 83 places, 95 transitions, 378 flow [2023-08-29 09:26:53,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=83, PETRI_TRANSITIONS=95} [2023-08-29 09:26:53,669 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2023-08-29 09:26:53,669 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 378 flow [2023-08-29 09:26:53,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 09:26:53,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:26:53,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:53,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:26:53,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 09:26:53,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:26:53,671 INFO L85 PathProgramCache]: Analyzing trace with hash 445087783, now seen corresponding path program 1 times [2023-08-29 09:26:53,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:26:53,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282974375] [2023-08-29 09:26:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:26:53,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:26:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:53,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:26:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:26:53,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:26:53,709 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:26:53,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (31 of 32 remaining) [2023-08-29 09:26:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2023-08-29 09:26:53,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2023-08-29 09:26:53,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2023-08-29 09:26:53,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2023-08-29 09:26:53,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2023-08-29 09:26:53,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2023-08-29 09:26:53,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2023-08-29 09:26:53,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2023-08-29 09:26:53,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2023-08-29 09:26:53,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2023-08-29 09:26:53,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2023-08-29 09:26:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 32 remaining) [2023-08-29 09:26:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 32 remaining) [2023-08-29 09:26:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2023-08-29 09:26:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2023-08-29 09:26:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2023-08-29 09:26:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2023-08-29 09:26:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2023-08-29 09:26:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2023-08-29 09:26:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2023-08-29 09:26:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2023-08-29 09:26:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2023-08-29 09:26:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2023-08-29 09:26:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2023-08-29 09:26:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2023-08-29 09:26:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2023-08-29 09:26:53,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 09:26:53,719 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:26:53,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 09:26:53,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 09:26:53,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:26:53 BasicIcfg [2023-08-29 09:26:53,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 09:26:53,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 09:26:53,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 09:26:53,749 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 09:26:53,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:26:48" (3/4) ... [2023-08-29 09:26:53,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 09:26:53,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 09:26:53,753 INFO L158 Benchmark]: Toolchain (without parser) took 6721.01ms. Allocated memory was 77.6MB in the beginning and 289.4MB in the end (delta: 211.8MB). Free memory was 53.5MB in the beginning and 175.3MB in the end (delta: -121.8MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,753 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:26:53,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.82ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.8MB in the end (delta: 1.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.29ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,754 INFO L158 Benchmark]: Boogie Preprocessor took 59.32ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,754 INFO L158 Benchmark]: RCFGBuilder took 466.39ms. Allocated memory is still 77.6MB. Free memory was 48.1MB in the beginning and 31.7MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,754 INFO L158 Benchmark]: TraceAbstraction took 5598.18ms. Allocated memory was 77.6MB in the beginning and 289.4MB in the end (delta: 211.8MB). Free memory was 30.9MB in the beginning and 175.3MB in the end (delta: -144.4MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2023-08-29 09:26:53,754 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 289.4MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:26:53,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.82ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.8MB in the end (delta: 1.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.29ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.32ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.39ms. Allocated memory is still 77.6MB. Free memory was 48.1MB in the beginning and 31.7MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5598.18ms. Allocated memory was 77.6MB in the beginning and 289.4MB in the end (delta: 211.8MB). Free memory was 30.9MB in the beginning and 175.3MB in the end (delta: -144.4MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 289.4MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 140 PlacesBefore, 74 PlacesAfterwards, 141 TransitionsBefore, 75 TransitionsAfterwards, 8036 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 29409 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12626, independent: 12054, independent conditional: 0, independent unconditional: 12054, dependent: 572, dependent conditional: 0, dependent unconditional: 572, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4224, independent: 4130, independent conditional: 0, independent unconditional: 4130, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12626, independent: 7924, independent conditional: 0, independent unconditional: 7924, dependent: 478, dependent conditional: 0, dependent unconditional: 478, unknown: 4224, unknown conditional: 0, unknown unconditional: 4224] , Statistics on independence cache: Total cache size (in pairs): 920, Positive cache size: 862, Positive conditional cache size: 0, Positive unconditional cache size: 862, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 697]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int turn; [L686] 0 int x; [L706] 0 pthread_t t1, t2; [L707] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, turn=0, x=0] [L688] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1 = 1=50, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L688] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L689] 1 turn = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] [L690] 1 flag2==1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] Now there is a data race on ~flag2~0 between C: flag2==1 [690] and C: flag2 = 1 [697] - 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: 699]: 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: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: 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: 690]: 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: 690]: 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: 693]: 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: 710]: 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 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: 707]: 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, 239 locations, 32 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: 5.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 688 IncrementalHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 32 mSDtfsCounter, 688 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=7, InterpolantAutomatonStates: 21, 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, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 09:26:53,789 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