./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/queue_ok_longest.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/queue_ok_longest.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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --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 09:16:41,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:16:41,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:16:41,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:16:41,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:16:41,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:16:41,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:16:41,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:16:41,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:16:41,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:16:41,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:16:41,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:16:41,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:16:41,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:16:41,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:16:41,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:16:41,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:16:41,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:16:41,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:16:41,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:16:41,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:16:41,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:16:41,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:16:41,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:16:41,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:16:41,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:16:41,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:16:41,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:16:41,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:16:41,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:16:41,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:16:41,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:16:41,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:16:41,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:16:41,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:16:41,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:16:41,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:16:41,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:16:41,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:16:41,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:16:41,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:16:41,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:16:42,023 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:16:42,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:16:42,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:16:42,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:16:42,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:16:42,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:16:42,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:16:42,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:16:42,027 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:16:42,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:16:42,028 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:16:42,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:16:42,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:16:42,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:16:42,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:16:42,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:16:42,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:16:42,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:16:42,030 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:16:42,030 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:16:42,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:16:42,030 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:16:42,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:16:42,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:16:42,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:16:42,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:16:42,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:16:42,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:16:42,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:16:42,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:16:42,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:16:42,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:16:42,033 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:16:42,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:16:42,033 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:16:42,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:16:42,033 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:16:42,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:16:42,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:16:42,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:16:42,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:16:42,380 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:16:42,380 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:16:42,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longest.i [2023-08-29 09:16:43,468 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:16:43,701 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:16:43,701 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i [2023-08-29 09:16:43,712 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d63027b8/876975234c18468b9627ae043ee7e4c0/FLAGc39a55e39 [2023-08-29 09:16:43,729 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d63027b8/876975234c18468b9627ae043ee7e4c0 [2023-08-29 09:16:43,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:16:43,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:16:43,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:16:43,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:16:43,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:16:43,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:16:43" (1/1) ... [2023-08-29 09:16:43,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ea3f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:43, skipping insertion in model container [2023-08-29 09:16:43,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:16:43" (1/1) ... [2023-08-29 09:16:43,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:16:43,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:16:44,206 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/queue_ok_longest.i[43280,43293] [2023-08-29 09:16:44,212 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/queue_ok_longest.i[43553,43566] [2023-08-29 09:16:44,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:16:44,226 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:16:44,310 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/queue_ok_longest.i[43280,43293] [2023-08-29 09:16:44,312 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/queue_ok_longest.i[43553,43566] [2023-08-29 09:16:44,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:16:44,388 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:16:44,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44 WrapperNode [2023-08-29 09:16:44,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:16:44,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:16:44,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:16:44,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:16:44,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,485 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 388 [2023-08-29 09:16:44,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:16:44,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:16:44,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:16:44,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:16:44,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,587 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:16:44,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:16:44,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:16:44,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:16:44,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (1/1) ... [2023-08-29 09:16:44,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:16:44,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:16:44,640 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 09:16:44,653 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 09:16:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-29 09:16:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-29 09:16:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-29 09:16:44,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-29 09:16:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:16:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:16:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:16:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:16:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 09:16:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:16:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:16:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:16:44,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:16:44,683 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 09:16:44,894 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:16:44,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:16:45,405 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:16:45,420 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:16:45,420 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 09:16:45,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:16:45 BoogieIcfgContainer [2023-08-29 09:16:45,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:16:45,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:16:45,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:16:45,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:16:45,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:16:43" (1/3) ... [2023-08-29 09:16:45,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cd4d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:16:45, skipping insertion in model container [2023-08-29 09:16:45,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:44" (2/3) ... [2023-08-29 09:16:45,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cd4d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:16:45, skipping insertion in model container [2023-08-29 09:16:45,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:16:45" (3/3) ... [2023-08-29 09:16:45,430 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2023-08-29 09:16:45,436 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:16:45,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:16:45,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-08-29 09:16:45,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:16:45,616 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 09:16:45,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 434 transitions, 884 flow [2023-08-29 09:16:45,851 INFO L130 PetriNetUnfolder]: 13/432 cut-off events. [2023-08-29 09:16:45,851 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:16:45,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 432 events. 13/432 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 789 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 310. Up to 3 conditions per place. [2023-08-29 09:16:45,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 434 transitions, 884 flow [2023-08-29 09:16:45,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 423 transitions, 855 flow [2023-08-29 09:16:45,875 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:16:45,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 417 places, 423 transitions, 855 flow [2023-08-29 09:16:45,890 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 417 places, 423 transitions, 855 flow [2023-08-29 09:16:45,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 417 places, 423 transitions, 855 flow [2023-08-29 09:16:45,977 INFO L130 PetriNetUnfolder]: 13/423 cut-off events. [2023-08-29 09:16:45,977 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 09:16:45,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 423 events. 13/423 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 714 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 310. Up to 3 conditions per place. [2023-08-29 09:16:46,003 INFO L119 LiptonReduction]: Number of co-enabled transitions 51498 [2023-08-29 09:17:10,672 WARN L222 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 133 DAG size of output: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:17:26,196 WARN L222 SmtUtils]: Spent 12.12s on a formula simplification. DAG size of input: 140 DAG size of output: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:17:42,695 WARN L222 SmtUtils]: Spent 13.23s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:17:56,555 WARN L222 SmtUtils]: Spent 13.86s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:18:04,875 WARN L222 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 217 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:18:12,888 WARN L222 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 09:18:12,902 INFO L134 LiptonReduction]: Checked pairs total: 417764 [2023-08-29 09:18:12,902 INFO L136 LiptonReduction]: Total number of compositions: 280 [2023-08-29 09:18:12,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:18:12,916 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;@72b18e55, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:18:12,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-08-29 09:18:12,918 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 09:18:12,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:18:12,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:12,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 09:18:12,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:12,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:12,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1518, now seen corresponding path program 1 times [2023-08-29 09:18:12,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:12,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867165779] [2023-08-29 09:18:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:13,030 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 09:18:13,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:13,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867165779] [2023-08-29 09:18:13,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867165779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:13,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:13,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 09:18:13,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991675206] [2023-08-29 09:18:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:13,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:18:13,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:18:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:18:13,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 714 [2023-08-29 09:18:13,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 203 transitions, 415 flow. Second operand has 2 states, 2 states have (on average 423.5) internal successors, (847), 2 states have internal predecessors, (847), 0 states have call successors, (0), 0 states 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 09:18:13,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:13,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 714 [2023-08-29 09:18:13,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:14,187 INFO L130 PetriNetUnfolder]: 2279/7244 cut-off events. [2023-08-29 09:18:14,188 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-08-29 09:18:14,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10984 conditions, 7244 events. 2279/7244 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 61684 event pairs, 1913 based on Foata normal form. 0/6718 useless extension candidates. Maximal degree in co-relation 10544. Up to 3662 conditions per place. [2023-08-29 09:18:14,239 INFO L137 encePairwiseOnDemand]: 707/714 looper letters, 62 selfloop transitions, 0 changer transitions 0/196 dead transitions. [2023-08-29 09:18:14,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 196 transitions, 525 flow [2023-08-29 09:18:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:18:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:18:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 915 transitions. [2023-08-29 09:18:14,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6407563025210085 [2023-08-29 09:18:14,274 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 915 transitions. [2023-08-29 09:18:14,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 915 transitions. [2023-08-29 09:18:14,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:14,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 915 transitions. [2023-08-29 09:18:14,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 457.5) internal successors, (915), 2 states have internal predecessors, (915), 0 states have call successors, (0), 0 states 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 09:18:14,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 714.0) internal successors, (2142), 3 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states 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 09:18:14,308 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 714.0) internal successors, (2142), 3 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states 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 09:18:14,310 INFO L175 Difference]: Start difference. First operand has 203 places, 203 transitions, 415 flow. Second operand 2 states and 915 transitions. [2023-08-29 09:18:14,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 196 transitions, 525 flow [2023-08-29 09:18:14,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 196 transitions, 520 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 09:18:14,326 INFO L231 Difference]: Finished difference. Result has 194 places, 196 transitions, 396 flow [2023-08-29 09:18:14,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=396, PETRI_PLACES=194, PETRI_TRANSITIONS=196} [2023-08-29 09:18:14,330 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -9 predicate places. [2023-08-29 09:18:14,331 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 196 transitions, 396 flow [2023-08-29 09:18:14,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 423.5) internal successors, (847), 2 states have internal predecessors, (847), 0 states have call successors, (0), 0 states 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 09:18:14,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:14,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:18:14,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:18:14,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:14,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:14,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1449708800, now seen corresponding path program 1 times [2023-08-29 09:18:14,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:14,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959666154] [2023-08-29 09:18:14,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:14,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:14,463 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 09:18:14,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:14,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959666154] [2023-08-29 09:18:14,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959666154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:14,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:14,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:18:14,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937299727] [2023-08-29 09:18:14,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:14,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:18:14,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:14,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:18:14,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:18:14,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 714 [2023-08-29 09:18:14,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 196 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 418.6666666666667) internal successors, (1256), 3 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states 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 09:18:14,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:14,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 714 [2023-08-29 09:18:14,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:15,728 INFO L130 PetriNetUnfolder]: 2805/8693 cut-off events. [2023-08-29 09:18:15,728 INFO L131 PetriNetUnfolder]: For 26/78 co-relation queries the response was YES. [2023-08-29 09:18:15,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13343 conditions, 8693 events. 2805/8693 cut-off events. For 26/78 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 76196 event pairs, 599 based on Foata normal form. 1/8069 useless extension candidates. Maximal degree in co-relation 13340. Up to 3304 conditions per place. [2023-08-29 09:18:15,778 INFO L137 encePairwiseOnDemand]: 709/714 looper letters, 120 selfloop transitions, 4 changer transitions 0/254 dead transitions. [2023-08-29 09:18:15,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 254 transitions, 763 flow [2023-08-29 09:18:15,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:18:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:18:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2023-08-29 09:18:15,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.642390289449113 [2023-08-29 09:18:15,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1376 transitions. [2023-08-29 09:18:15,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1376 transitions. [2023-08-29 09:18:15,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:15,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1376 transitions. [2023-08-29 09:18:15,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states 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 09:18:15,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:15,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:15,792 INFO L175 Difference]: Start difference. First operand has 194 places, 196 transitions, 396 flow. Second operand 3 states and 1376 transitions. [2023-08-29 09:18:15,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 254 transitions, 763 flow [2023-08-29 09:18:15,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 254 transitions, 763 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:18:15,797 INFO L231 Difference]: Finished difference. Result has 198 places, 199 transitions, 426 flow [2023-08-29 09:18:15,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=198, PETRI_TRANSITIONS=199} [2023-08-29 09:18:15,799 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -5 predicate places. [2023-08-29 09:18:15,799 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 199 transitions, 426 flow [2023-08-29 09:18:15,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.6666666666667) internal successors, (1256), 3 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states 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 09:18:15,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:15,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:18:15,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:18:15,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:15,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1598779192, now seen corresponding path program 1 times [2023-08-29 09:18:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310843982] [2023-08-29 09:18:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:15,873 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 09:18:15,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:15,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310843982] [2023-08-29 09:18:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310843982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:15,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:15,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:18:15,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704733533] [2023-08-29 09:18:15,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:15,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:18:15,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:15,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:18:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:18:15,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 714 [2023-08-29 09:18:15,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 199 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states 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 09:18:15,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:15,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 714 [2023-08-29 09:18:15,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:17,037 INFO L130 PetriNetUnfolder]: 2902/9265 cut-off events. [2023-08-29 09:18:17,038 INFO L131 PetriNetUnfolder]: For 270/270 co-relation queries the response was YES. [2023-08-29 09:18:17,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14350 conditions, 9265 events. 2902/9265 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 84786 event pairs, 696 based on Foata normal form. 0/8518 useless extension candidates. Maximal degree in co-relation 14345. Up to 3234 conditions per place. [2023-08-29 09:18:17,077 INFO L137 encePairwiseOnDemand]: 709/714 looper letters, 117 selfloop transitions, 4 changer transitions 0/254 dead transitions. [2023-08-29 09:18:17,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 254 transitions, 783 flow [2023-08-29 09:18:17,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:18:17,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:18:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2023-08-29 09:18:17,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6405228758169934 [2023-08-29 09:18:17,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2023-08-29 09:18:17,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2023-08-29 09:18:17,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:17,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2023-08-29 09:18:17,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states 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 09:18:17,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:17,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:17,090 INFO L175 Difference]: Start difference. First operand has 198 places, 199 transitions, 426 flow. Second operand 3 states and 1372 transitions. [2023-08-29 09:18:17,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 254 transitions, 783 flow [2023-08-29 09:18:17,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 254 transitions, 773 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:18:17,096 INFO L231 Difference]: Finished difference. Result has 200 places, 202 transitions, 448 flow [2023-08-29 09:18:17,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=200, PETRI_TRANSITIONS=202} [2023-08-29 09:18:17,097 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -3 predicate places. [2023-08-29 09:18:17,097 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 202 transitions, 448 flow [2023-08-29 09:18:17,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states 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 09:18:17,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:17,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:18:17,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:18:17,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:17,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash 766947390, now seen corresponding path program 1 times [2023-08-29 09:18:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33450709] [2023-08-29 09:18:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:17,160 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 09:18:17,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:17,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33450709] [2023-08-29 09:18:17,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33450709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:17,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:17,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 09:18:17,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613054585] [2023-08-29 09:18:17,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:17,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:18:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:18:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:18:17,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 714 [2023-08-29 09:18:17,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 202 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states 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 09:18:17,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:17,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 714 [2023-08-29 09:18:17,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:18,772 INFO L130 PetriNetUnfolder]: 4400/15079 cut-off events. [2023-08-29 09:18:18,773 INFO L131 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2023-08-29 09:18:18,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22853 conditions, 15079 events. 4400/15079 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 145628 event pairs, 2398 based on Foata normal form. 0/14133 useless extension candidates. Maximal degree in co-relation 22847. Up to 4544 conditions per place. [2023-08-29 09:18:18,853 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 113 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2023-08-29 09:18:18,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 252 transitions, 784 flow [2023-08-29 09:18:18,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:18:18,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:18:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2023-08-29 09:18:18,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6395891690009337 [2023-08-29 09:18:18,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1370 transitions. [2023-08-29 09:18:18,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1370 transitions. [2023-08-29 09:18:18,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:18,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1370 transitions. [2023-08-29 09:18:18,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.6666666666667) internal successors, (1370), 3 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states 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 09:18:18,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:18,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:18,867 INFO L175 Difference]: Start difference. First operand has 200 places, 202 transitions, 448 flow. Second operand 3 states and 1370 transitions. [2023-08-29 09:18:18,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 252 transitions, 784 flow [2023-08-29 09:18:18,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 252 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:18:18,873 INFO L231 Difference]: Finished difference. Result has 201 places, 203 transitions, 452 flow [2023-08-29 09:18:18,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=201, PETRI_TRANSITIONS=203} [2023-08-29 09:18:18,874 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, -2 predicate places. [2023-08-29 09:18:18,875 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 203 transitions, 452 flow [2023-08-29 09:18:18,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states 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 09:18:18,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:18,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:18:18,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:18:18,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:18,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:18,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1218439325, now seen corresponding path program 1 times [2023-08-29 09:18:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:18,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251410763] [2023-08-29 09:18:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:18,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:19,296 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 09:18:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:19,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251410763] [2023-08-29 09:18:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251410763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:19,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:19,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:18:19,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512126725] [2023-08-29 09:18:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:19,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:18:19,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:18:19,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:18:20,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 714 [2023-08-29 09:18:20,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 203 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states 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 09:18:20,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:20,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 714 [2023-08-29 09:18:20,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:32,288 INFO L130 PetriNetUnfolder]: 78188/143665 cut-off events. [2023-08-29 09:18:32,288 INFO L131 PetriNetUnfolder]: For 4254/4254 co-relation queries the response was YES. [2023-08-29 09:18:32,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268579 conditions, 143665 events. 78188/143665 cut-off events. For 4254/4254 co-relation queries the response was YES. Maximal size of possible extension queue 1812. Compared 1389517 event pairs, 28903 based on Foata normal form. 0/134360 useless extension candidates. Maximal degree in co-relation 268572. Up to 81058 conditions per place. [2023-08-29 09:18:33,077 INFO L137 encePairwiseOnDemand]: 676/714 looper letters, 316 selfloop transitions, 133 changer transitions 0/553 dead transitions. [2023-08-29 09:18:33,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 553 transitions, 2139 flow [2023-08-29 09:18:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:18:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:18:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2650 transitions. [2023-08-29 09:18:33,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6185807656395892 [2023-08-29 09:18:33,089 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2650 transitions. [2023-08-29 09:18:33,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2650 transitions. [2023-08-29 09:18:33,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:33,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2650 transitions. [2023-08-29 09:18:33,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 441.6666666666667) internal successors, (2650), 6 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states 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 09:18:33,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states 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 09:18:33,110 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states 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 09:18:33,110 INFO L175 Difference]: Start difference. First operand has 201 places, 203 transitions, 452 flow. Second operand 6 states and 2650 transitions. [2023-08-29 09:18:33,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 553 transitions, 2139 flow [2023-08-29 09:18:33,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 553 transitions, 2129 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:18:33,130 INFO L231 Difference]: Finished difference. Result has 210 places, 335 transitions, 1320 flow [2023-08-29 09:18:33,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1320, PETRI_PLACES=210, PETRI_TRANSITIONS=335} [2023-08-29 09:18:33,134 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, 7 predicate places. [2023-08-29 09:18:33,134 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 335 transitions, 1320 flow [2023-08-29 09:18:33,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states 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 09:18:33,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:33,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:18:33,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:18:33,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:33,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:33,136 INFO L85 PathProgramCache]: Analyzing trace with hash -476432412, now seen corresponding path program 1 times [2023-08-29 09:18:33,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:33,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527396618] [2023-08-29 09:18:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:33,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:33,186 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 09:18:33,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:33,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527396618] [2023-08-29 09:18:33,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527396618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:33,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:33,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 09:18:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673343514] [2023-08-29 09:18:33,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:33,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:18:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:18:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:18:33,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 714 [2023-08-29 09:18:33,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 335 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states 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 09:18:33,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:33,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 714 [2023-08-29 09:18:33,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:18:46,333 INFO L130 PetriNetUnfolder]: 51596/137408 cut-off events. [2023-08-29 09:18:46,334 INFO L131 PetriNetUnfolder]: For 29143/37683 co-relation queries the response was YES. [2023-08-29 09:18:46,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277797 conditions, 137408 events. 51596/137408 cut-off events. For 29143/37683 co-relation queries the response was YES. Maximal size of possible extension queue 1672. Compared 1726495 event pairs, 16589 based on Foata normal form. 0/129293 useless extension candidates. Maximal degree in co-relation 277786. Up to 42884 conditions per place. [2023-08-29 09:18:47,286 INFO L137 encePairwiseOnDemand]: 710/714 looper letters, 154 selfloop transitions, 3 changer transitions 0/406 dead transitions. [2023-08-29 09:18:47,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 406 transitions, 1879 flow [2023-08-29 09:18:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:18:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:18:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2023-08-29 09:18:47,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6395891690009337 [2023-08-29 09:18:47,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1370 transitions. [2023-08-29 09:18:47,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1370 transitions. [2023-08-29 09:18:47,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:18:47,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1370 transitions. [2023-08-29 09:18:47,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.6666666666667) internal successors, (1370), 3 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states 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 09:18:47,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:47,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states 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 09:18:47,300 INFO L175 Difference]: Start difference. First operand has 210 places, 335 transitions, 1320 flow. Second operand 3 states and 1370 transitions. [2023-08-29 09:18:47,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 406 transitions, 1879 flow [2023-08-29 09:18:50,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 406 transitions, 1879 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:18:50,234 INFO L231 Difference]: Finished difference. Result has 213 places, 337 transitions, 1339 flow [2023-08-29 09:18:50,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1320, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=213, PETRI_TRANSITIONS=337} [2023-08-29 09:18:50,235 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, 10 predicate places. [2023-08-29 09:18:50,236 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 337 transitions, 1339 flow [2023-08-29 09:18:50,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states 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 09:18:50,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:18:50,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:18:50,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:18:50,237 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:18:50,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:18:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1973975987, now seen corresponding path program 1 times [2023-08-29 09:18:50,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:18:50,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195272645] [2023-08-29 09:18:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:18:50,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:18:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:18:50,542 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 09:18:50,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:18:50,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195272645] [2023-08-29 09:18:50,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195272645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:18:50,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:18:50,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:18:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435396980] [2023-08-29 09:18:50,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:18:50,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:18:50,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:18:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:18:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:18:51,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 714 [2023-08-29 09:18:51,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 337 transitions, 1339 flow. Second operand has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states 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 09:18:51,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:18:51,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 714 [2023-08-29 09:18:51,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:19:18,236 INFO L130 PetriNetUnfolder]: 126863/263414 cut-off events. [2023-08-29 09:19:18,236 INFO L131 PetriNetUnfolder]: For 116567/124873 co-relation queries the response was YES. [2023-08-29 09:19:19,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617572 conditions, 263414 events. 126863/263414 cut-off events. For 116567/124873 co-relation queries the response was YES. Maximal size of possible extension queue 3081. Compared 3022300 event pairs, 39523 based on Foata normal form. 12/249375 useless extension candidates. Maximal degree in co-relation 617559. Up to 142917 conditions per place. [2023-08-29 09:19:20,219 INFO L137 encePairwiseOnDemand]: 680/714 looper letters, 358 selfloop transitions, 271 changer transitions 0/742 dead transitions. [2023-08-29 09:19:20,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 742 transitions, 4401 flow [2023-08-29 09:19:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:19:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:19:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2464 transitions. [2023-08-29 09:19:20,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5751633986928104 [2023-08-29 09:19:20,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2464 transitions. [2023-08-29 09:19:20,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2464 transitions. [2023-08-29 09:19:20,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:19:20,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2464 transitions. [2023-08-29 09:19:20,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 410.6666666666667) internal successors, (2464), 6 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states 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 09:19:20,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states 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 09:19:20,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states 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 09:19:20,238 INFO L175 Difference]: Start difference. First operand has 213 places, 337 transitions, 1339 flow. Second operand 6 states and 2464 transitions. [2023-08-29 09:19:20,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 742 transitions, 4401 flow [2023-08-29 09:19:26,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 742 transitions, 4386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:19:26,675 INFO L231 Difference]: Finished difference. Result has 222 places, 606 transitions, 4060 flow [2023-08-29 09:19:26,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4060, PETRI_PLACES=222, PETRI_TRANSITIONS=606} [2023-08-29 09:19:26,676 INFO L281 CegarLoopForPetriNet]: 203 programPoint places, 19 predicate places. [2023-08-29 09:19:26,676 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 606 transitions, 4060 flow [2023-08-29 09:19:26,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states 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 09:19:26,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:19:26,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:19:26,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:19:26,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 09:19:26,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:19:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash -413471352, now seen corresponding path program 1 times [2023-08-29 09:19:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:19:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129815821] [2023-08-29 09:19:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:19:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:19:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:19:26,912 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 09:19:26,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:19:26,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129815821] [2023-08-29 09:19:26,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129815821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:19:26,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:19:26,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:19:26,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542427047] [2023-08-29 09:19:26,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:19:26,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:19:26,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:19:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:19:26,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:19:27,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 714 [2023-08-29 09:19:27,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 606 transitions, 4060 flow. Second operand has 6 states, 6 states have (on average 373.0) internal successors, (2238), 6 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states 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 09:19:27,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:19:27,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 714 [2023-08-29 09:19:27,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand