./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd94157895dc71e9f24fce5dbc4a71d4e4b55c4da9be28372139a3001decae0a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:35:42,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:35:42,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:35:42,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:35:42,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:35:42,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:35:42,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:35:42,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:35:42,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:35:42,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:35:42,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:35:42,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:35:42,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:35:42,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:35:42,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:35:42,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:35:42,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:35:42,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:35:42,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:35:42,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:35:42,676 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:35:42,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:35:42,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:35:42,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:35:42,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:35:42,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:35:42,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:35:42,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:35:42,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:35:42,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:35:42,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:35:42,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:35:42,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:35:42,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:35:42,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:35:42,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:35:42,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:35:42,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:35:42,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:35:42,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:35:42,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:35:42,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:35:42,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:35:42,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:35:42,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:35:42,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:35:42,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:35:42,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:35:42,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:35:42,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:35:42,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:35:42,723 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:35:42,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:35:42,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:35:42,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:35:42,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:35:42,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:35:42,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:35:42,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:35:42,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:35:42,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:35:42,725 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:35:42,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:35:42,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:35:42,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:35:42,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:35:42,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:35:42,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:35:42,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:35:42,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:42,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:35:42,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:35:42,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:35:42,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:35:42,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:35:42,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:35:42,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:35:42,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:35:42,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd94157895dc71e9f24fce5dbc4a71d4e4b55c4da9be28372139a3001decae0a [2022-04-18 16:35:42,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:35:42,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:35:42,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:35:42,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:35:42,982 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:35:42,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2022-04-18 16:35:43,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/976c81dec/6bcb1b5500f1497092ed01faea86e490/FLAG3f25083a3 [2022-04-18 16:35:43,437 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:35:43,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2022-04-18 16:35:43,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/976c81dec/6bcb1b5500f1497092ed01faea86e490/FLAG3f25083a3 [2022-04-18 16:35:43,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/976c81dec/6bcb1b5500f1497092ed01faea86e490 [2022-04-18 16:35:43,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:35:43,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:35:43,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:43,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:35:43,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:35:43,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25846197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43, skipping insertion in model container [2022-04-18 16:35:43,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:35:43,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:35:43,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2022-04-18 16:35:43,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:43,728 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:35:43,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2022-04-18 16:35:43,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:43,769 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:35:43,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43 WrapperNode [2022-04-18 16:35:43,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:43,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:43,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:35:43,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:35:43,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,838 INFO L137 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 419 [2022-04-18 16:35:43,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:43,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:35:43,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:35:43,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:35:43,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:35:43,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:35:43,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:35:43,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:35:43,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (1/1) ... [2022-04-18 16:35:43,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:43,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:35:43,922 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) [2022-04-18 16:35:43,933 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 [2022-04-18 16:35:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:35:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:35:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:35:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:35:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:35:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:35:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:35:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:35:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:35:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:35:43,972 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:35:44,055 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:35:44,056 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:35:44,588 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:35:44,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:35:44,904 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:35:44,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:44 BoogieIcfgContainer [2022-04-18 16:35:44,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:35:44,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:35:44,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:35:44,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:35:44,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:35:43" (1/3) ... [2022-04-18 16:35:44,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0da744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:44, skipping insertion in model container [2022-04-18 16:35:44,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:43" (2/3) ... [2022-04-18 16:35:44,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0da744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:44, skipping insertion in model container [2022-04-18 16:35:44,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:44" (3/3) ... [2022-04-18 16:35:44,920 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2022-04-18 16:35:44,925 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:35:44,926 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:35:44,926 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2022-04-18 16:35:44,926 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:35:45,023 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:35:45,085 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:35:45,093 INFO L340 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 [2022-04-18 16:35:45,094 INFO L341 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2022-04-18 16:35:45,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 385 transitions, 786 flow [2022-04-18 16:35:45,282 INFO L129 PetriNetUnfolder]: 16/383 cut-off events. [2022-04-18 16:35:45,282 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:35:45,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 383 events. 16/383 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 614 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 288. Up to 2 conditions per place. [2022-04-18 16:35:45,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 385 transitions, 786 flow [2022-04-18 16:35:45,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 365 transitions, 742 flow [2022-04-18 16:35:45,305 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-04-18 16:35:45,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:35:45,306 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:45,307 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:45,307 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1362390323, now seen corresponding path program 1 times [2022-04-18 16:35:45,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:45,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584614414] [2022-04-18 16:35:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:45,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:45,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:45,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584614414] [2022-04-18 16:35:45,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584614414] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:45,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:45,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:45,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952206341] [2022-04-18 16:35:45,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:45,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:45,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:45,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:45,563 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 385 [2022-04-18 16:35:45,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 365 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:45,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 385 [2022-04-18 16:35:45,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:45,729 INFO L129 PetriNetUnfolder]: 36/431 cut-off events. [2022-04-18 16:35:45,729 INFO L130 PetriNetUnfolder]: For 33/38 co-relation queries the response was YES. [2022-04-18 16:35:45,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 431 events. 36/431 cut-off events. For 33/38 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1176 event pairs, 17 based on Foata normal form. 20/365 useless extension candidates. Maximal degree in co-relation 274. Up to 66 conditions per place. [2022-04-18 16:35:45,737 INFO L132 encePairwiseOnDemand]: 341/385 looper letters, 20 selfloop transitions, 2 changer transitions 5/323 dead transitions. [2022-04-18 16:35:45,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 323 transitions, 702 flow [2022-04-18 16:35:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2022-04-18 16:35:45,760 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8813852813852814 [2022-04-18 16:35:45,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1018 transitions. [2022-04-18 16:35:45,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1018 transitions. [2022-04-18 16:35:45,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:45,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1018 transitions. [2022-04-18 16:35:45,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,788 INFO L186 Difference]: Start difference. First operand has 357 places, 365 transitions, 742 flow. Second operand 3 states and 1018 transitions. [2022-04-18 16:35:45,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 323 transitions, 702 flow [2022-04-18 16:35:45,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 323 transitions, 694 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:45,804 INFO L242 Difference]: Finished difference. Result has 322 places, 318 transitions, 644 flow [2022-04-18 16:35:45,807 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=322, PETRI_TRANSITIONS=318} [2022-04-18 16:35:45,814 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -35 predicate places. [2022-04-18 16:35:45,814 INFO L478 AbstractCegarLoop]: Abstraction has has 322 places, 318 transitions, 644 flow [2022-04-18 16:35:45,815 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,815 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:45,816 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:45,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:35:45,817 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:45,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash 152148337, now seen corresponding path program 1 times [2022-04-18 16:35:45,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:45,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111788131] [2022-04-18 16:35:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:45,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:45,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:45,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111788131] [2022-04-18 16:35:45,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111788131] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:45,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:45,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:45,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332369838] [2022-04-18 16:35:45,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:45,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:45,895 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 385 [2022-04-18 16:35:45,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 318 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:45,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:45,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 385 [2022-04-18 16:35:45,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,083 INFO L129 PetriNetUnfolder]: 34/562 cut-off events. [2022-04-18 16:35:46,084 INFO L130 PetriNetUnfolder]: For 4/15 co-relation queries the response was YES. [2022-04-18 16:35:46,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 562 events. 34/562 cut-off events. For 4/15 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1994 event pairs, 14 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 596. Up to 58 conditions per place. [2022-04-18 16:35:46,088 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 21 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2022-04-18 16:35:46,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 317 transitions, 688 flow [2022-04-18 16:35:46,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-04-18 16:35:46,092 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8467532467532467 [2022-04-18 16:35:46,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-04-18 16:35:46,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-04-18 16:35:46,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-04-18 16:35:46,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,098 INFO L186 Difference]: Start difference. First operand has 322 places, 318 transitions, 644 flow. Second operand 3 states and 978 transitions. [2022-04-18 16:35:46,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 317 transitions, 688 flow [2022-04-18 16:35:46,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 317 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:46,108 INFO L242 Difference]: Finished difference. Result has 316 places, 317 transitions, 642 flow [2022-04-18 16:35:46,109 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=316, PETRI_TRANSITIONS=317} [2022-04-18 16:35:46,110 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -41 predicate places. [2022-04-18 16:35:46,110 INFO L478 AbstractCegarLoop]: Abstraction has has 316 places, 317 transitions, 642 flow [2022-04-18 16:35:46,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,111 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,111 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:35:46,112 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2011936219, now seen corresponding path program 1 times [2022-04-18 16:35:46,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18537368] [2022-04-18 16:35:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18537368] [2022-04-18 16:35:46,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18537368] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131916815] [2022-04-18 16:35:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,152 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 385 [2022-04-18 16:35:46,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 317 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 385 [2022-04-18 16:35:46,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,249 INFO L129 PetriNetUnfolder]: 18/406 cut-off events. [2022-04-18 16:35:46,250 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-04-18 16:35:46,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 406 events. 18/406 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 880 event pairs, 5 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 403. Up to 31 conditions per place. [2022-04-18 16:35:46,253 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 15 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2022-04-18 16:35:46,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 316 transitions, 674 flow [2022-04-18 16:35:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-04-18 16:35:46,256 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-04-18 16:35:46,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,263 INFO L186 Difference]: Start difference. First operand has 316 places, 317 transitions, 642 flow. Second operand 3 states and 990 transitions. [2022-04-18 16:35:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 316 transitions, 674 flow [2022-04-18 16:35:46,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 316 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:46,270 INFO L242 Difference]: Finished difference. Result has 315 places, 316 transitions, 640 flow [2022-04-18 16:35:46,271 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=315, PETRI_TRANSITIONS=316} [2022-04-18 16:35:46,271 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -42 predicate places. [2022-04-18 16:35:46,272 INFO L478 AbstractCegarLoop]: Abstraction has has 315 places, 316 transitions, 640 flow [2022-04-18 16:35:46,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,273 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,273 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,273 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:35:46,273 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,274 INFO L85 PathProgramCache]: Analyzing trace with hash 675651435, now seen corresponding path program 1 times [2022-04-18 16:35:46,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812386466] [2022-04-18 16:35:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812386466] [2022-04-18 16:35:46,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812386466] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378388792] [2022-04-18 16:35:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,314 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 385 [2022-04-18 16:35:46,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 316 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 385 [2022-04-18 16:35:46,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,405 INFO L129 PetriNetUnfolder]: 18/405 cut-off events. [2022-04-18 16:35:46,405 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-04-18 16:35:46,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 405 events. 18/405 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 879 event pairs, 5 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 395. Up to 31 conditions per place. [2022-04-18 16:35:46,408 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 15 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2022-04-18 16:35:46,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 315 transitions, 672 flow [2022-04-18 16:35:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-04-18 16:35:46,411 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-04-18 16:35:46,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-04-18 16:35:46,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,417 INFO L186 Difference]: Start difference. First operand has 315 places, 316 transitions, 640 flow. Second operand 3 states and 990 transitions. [2022-04-18 16:35:46,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 315 transitions, 672 flow [2022-04-18 16:35:46,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 315 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:46,426 INFO L242 Difference]: Finished difference. Result has 314 places, 315 transitions, 638 flow [2022-04-18 16:35:46,427 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=314, PETRI_TRANSITIONS=315} [2022-04-18 16:35:46,428 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -43 predicate places. [2022-04-18 16:35:46,428 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 315 transitions, 638 flow [2022-04-18 16:35:46,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,429 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,429 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:35:46,429 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1172856519, now seen corresponding path program 1 times [2022-04-18 16:35:46,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056462575] [2022-04-18 16:35:46,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056462575] [2022-04-18 16:35:46,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056462575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968691059] [2022-04-18 16:35:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,504 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 385 [2022-04-18 16:35:46,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 315 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 385 [2022-04-18 16:35:46,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,586 INFO L129 PetriNetUnfolder]: 21/418 cut-off events. [2022-04-18 16:35:46,586 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-04-18 16:35:46,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 418 events. 21/418 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 878 event pairs, 5 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 405. Up to 21 conditions per place. [2022-04-18 16:35:46,590 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 16 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2022-04-18 16:35:46,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 319 transitions, 684 flow [2022-04-18 16:35:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1000 transitions. [2022-04-18 16:35:46,593 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8658008658008658 [2022-04-18 16:35:46,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1000 transitions. [2022-04-18 16:35:46,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1000 transitions. [2022-04-18 16:35:46,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1000 transitions. [2022-04-18 16:35:46,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,599 INFO L186 Difference]: Start difference. First operand has 314 places, 315 transitions, 638 flow. Second operand 3 states and 1000 transitions. [2022-04-18 16:35:46,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 319 transitions, 684 flow [2022-04-18 16:35:46,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 319 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:46,606 INFO L242 Difference]: Finished difference. Result has 314 places, 315 transitions, 642 flow [2022-04-18 16:35:46,607 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=314, PETRI_TRANSITIONS=315} [2022-04-18 16:35:46,607 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -43 predicate places. [2022-04-18 16:35:46,608 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 315 transitions, 642 flow [2022-04-18 16:35:46,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,609 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,609 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:35:46,609 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1269087168, now seen corresponding path program 1 times [2022-04-18 16:35:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224965709] [2022-04-18 16:35:46,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224965709] [2022-04-18 16:35:46,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224965709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122092939] [2022-04-18 16:35:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,648 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 385 [2022-04-18 16:35:46,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 315 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 385 [2022-04-18 16:35:46,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,740 INFO L129 PetriNetUnfolder]: 21/425 cut-off events. [2022-04-18 16:35:46,740 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2022-04-18 16:35:46,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 425 events. 21/425 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1040 event pairs, 7 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 277. Up to 35 conditions per place. [2022-04-18 16:35:46,743 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 13 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2022-04-18 16:35:46,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 314 transitions, 670 flow [2022-04-18 16:35:46,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2022-04-18 16:35:46,747 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8623376623376623 [2022-04-18 16:35:46,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 996 transitions. [2022-04-18 16:35:46,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 996 transitions. [2022-04-18 16:35:46,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 996 transitions. [2022-04-18 16:35:46,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,754 INFO L186 Difference]: Start difference. First operand has 314 places, 315 transitions, 642 flow. Second operand 3 states and 996 transitions. [2022-04-18 16:35:46,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 314 transitions, 670 flow [2022-04-18 16:35:46,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 314 transitions, 668 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:46,760 INFO L242 Difference]: Finished difference. Result has 314 places, 314 transitions, 642 flow [2022-04-18 16:35:46,760 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=314, PETRI_TRANSITIONS=314} [2022-04-18 16:35:46,761 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -43 predicate places. [2022-04-18 16:35:46,761 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 314 transitions, 642 flow [2022-04-18 16:35:46,762 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,762 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,763 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,763 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:35:46,763 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1220219590, now seen corresponding path program 1 times [2022-04-18 16:35:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968642929] [2022-04-18 16:35:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968642929] [2022-04-18 16:35:46,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968642929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999100490] [2022-04-18 16:35:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,799 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 385 [2022-04-18 16:35:46,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 314 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 385 [2022-04-18 16:35:46,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:46,874 INFO L129 PetriNetUnfolder]: 21/424 cut-off events. [2022-04-18 16:35:46,874 INFO L130 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-04-18 16:35:46,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 424 events. 21/424 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1040 event pairs, 7 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 408. Up to 33 conditions per place. [2022-04-18 16:35:46,878 INFO L132 encePairwiseOnDemand]: 383/385 looper letters, 13 selfloop transitions, 1 changer transitions 0/313 dead transitions. [2022-04-18 16:35:46,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 313 transitions, 668 flow [2022-04-18 16:35:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 995 transitions. [2022-04-18 16:35:46,883 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8614718614718615 [2022-04-18 16:35:46,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 995 transitions. [2022-04-18 16:35:46,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 995 transitions. [2022-04-18 16:35:46,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:46,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 995 transitions. [2022-04-18 16:35:46,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,891 INFO L186 Difference]: Start difference. First operand has 314 places, 314 transitions, 642 flow. Second operand 3 states and 995 transitions. [2022-04-18 16:35:46,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 313 transitions, 668 flow [2022-04-18 16:35:46,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 313 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:46,897 INFO L242 Difference]: Finished difference. Result has 313 places, 313 transitions, 638 flow [2022-04-18 16:35:46,898 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=313, PETRI_TRANSITIONS=313} [2022-04-18 16:35:46,899 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -44 predicate places. [2022-04-18 16:35:46,899 INFO L478 AbstractCegarLoop]: Abstraction has has 313 places, 313 transitions, 638 flow [2022-04-18 16:35:46,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,900 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:46,901 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:46,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:35:46,901 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:46,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:46,902 INFO L85 PathProgramCache]: Analyzing trace with hash 516825597, now seen corresponding path program 1 times [2022-04-18 16:35:46,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:46,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381559748] [2022-04-18 16:35:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:46,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:46,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381559748] [2022-04-18 16:35:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381559748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:46,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:46,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:46,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048948999] [2022-04-18 16:35:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:46,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:46,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:46,966 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 385 [2022-04-18 16:35:46,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 313 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:46,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:46,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 385 [2022-04-18 16:35:46,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:47,041 INFO L129 PetriNetUnfolder]: 21/423 cut-off events. [2022-04-18 16:35:47,042 INFO L130 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-04-18 16:35:47,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 423 events. 21/423 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1035 event pairs, 7 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 408. Up to 35 conditions per place. [2022-04-18 16:35:47,045 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 13 selfloop transitions, 2 changer transitions 0/312 dead transitions. [2022-04-18 16:35:47,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 312 transitions, 666 flow [2022-04-18 16:35:47,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2022-04-18 16:35:47,049 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8623376623376623 [2022-04-18 16:35:47,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 996 transitions. [2022-04-18 16:35:47,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 996 transitions. [2022-04-18 16:35:47,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:47,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 996 transitions. [2022-04-18 16:35:47,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,054 INFO L186 Difference]: Start difference. First operand has 313 places, 313 transitions, 638 flow. Second operand 3 states and 996 transitions. [2022-04-18 16:35:47,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 312 transitions, 666 flow [2022-04-18 16:35:47,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 312 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:47,061 INFO L242 Difference]: Finished difference. Result has 313 places, 312 transitions, 639 flow [2022-04-18 16:35:47,061 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=639, PETRI_PLACES=313, PETRI_TRANSITIONS=312} [2022-04-18 16:35:47,062 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -44 predicate places. [2022-04-18 16:35:47,062 INFO L478 AbstractCegarLoop]: Abstraction has has 313 places, 312 transitions, 639 flow [2022-04-18 16:35:47,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,063 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:47,063 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:47,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:35:47,064 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:47,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:47,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1267041851, now seen corresponding path program 1 times [2022-04-18 16:35:47,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505159903] [2022-04-18 16:35:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:47,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:47,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:47,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505159903] [2022-04-18 16:35:47,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505159903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:47,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:47,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:47,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715506446] [2022-04-18 16:35:47,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:47,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:47,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:47,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:47,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:47,231 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 385 [2022-04-18 16:35:47,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 312 transitions, 639 flow. Second operand has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:47,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 385 [2022-04-18 16:35:47,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:47,758 INFO L129 PetriNetUnfolder]: 806/2198 cut-off events. [2022-04-18 16:35:47,758 INFO L130 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2022-04-18 16:35:47,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 2198 events. 806/2198 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14004 event pairs, 637 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 3611. Up to 1236 conditions per place. [2022-04-18 16:35:47,778 INFO L132 encePairwiseOnDemand]: 373/385 looper letters, 62 selfloop transitions, 10 changer transitions 0/310 dead transitions. [2022-04-18 16:35:47,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 310 transitions, 779 flow [2022-04-18 16:35:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:47,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1687 transitions. [2022-04-18 16:35:47,783 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7303030303030303 [2022-04-18 16:35:47,783 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1687 transitions. [2022-04-18 16:35:47,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1687 transitions. [2022-04-18 16:35:47,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:47,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1687 transitions. [2022-04-18 16:35:47,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.1666666666667) internal successors, (1687), 6 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,792 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,792 INFO L186 Difference]: Start difference. First operand has 313 places, 312 transitions, 639 flow. Second operand 6 states and 1687 transitions. [2022-04-18 16:35:47,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 310 transitions, 779 flow [2022-04-18 16:35:47,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 310 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:47,798 INFO L242 Difference]: Finished difference. Result has 314 places, 310 transitions, 651 flow [2022-04-18 16:35:47,799 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=651, PETRI_PLACES=314, PETRI_TRANSITIONS=310} [2022-04-18 16:35:47,799 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -43 predicate places. [2022-04-18 16:35:47,800 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 310 transitions, 651 flow [2022-04-18 16:35:47,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:47,801 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:47,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:35:47,801 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash -394032798, now seen corresponding path program 1 times [2022-04-18 16:35:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:47,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597814631] [2022-04-18 16:35:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:47,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597814631] [2022-04-18 16:35:47,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597814631] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:47,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:47,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:47,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471880514] [2022-04-18 16:35:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:47,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:47,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:47,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:47,848 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 385 [2022-04-18 16:35:47,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 310 transitions, 651 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:47,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 385 [2022-04-18 16:35:47,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:47,938 INFO L129 PetriNetUnfolder]: 34/545 cut-off events. [2022-04-18 16:35:47,938 INFO L130 PetriNetUnfolder]: For 16/24 co-relation queries the response was YES. [2022-04-18 16:35:47,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 545 events. 34/545 cut-off events. For 16/24 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1858 event pairs, 15 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 599. Up to 55 conditions per place. [2022-04-18 16:35:47,942 INFO L132 encePairwiseOnDemand]: 381/385 looper letters, 17 selfloop transitions, 1 changer transitions 0/307 dead transitions. [2022-04-18 16:35:47,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 307 transitions, 681 flow [2022-04-18 16:35:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:47,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2022-04-18 16:35:47,945 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8510822510822511 [2022-04-18 16:35:47,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2022-04-18 16:35:47,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2022-04-18 16:35:47,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:47,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2022-04-18 16:35:47,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,951 INFO L186 Difference]: Start difference. First operand has 314 places, 310 transitions, 651 flow. Second operand 3 states and 983 transitions. [2022-04-18 16:35:47,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 307 transitions, 681 flow [2022-04-18 16:35:47,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 307 transitions, 661 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:35:47,957 INFO L242 Difference]: Finished difference. Result has 308 places, 307 transitions, 627 flow [2022-04-18 16:35:47,958 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=627, PETRI_PLACES=308, PETRI_TRANSITIONS=307} [2022-04-18 16:35:47,959 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -49 predicate places. [2022-04-18 16:35:47,960 INFO L478 AbstractCegarLoop]: Abstraction has has 308 places, 307 transitions, 627 flow [2022-04-18 16:35:47,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:47,973 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:47,973 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:47,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:35:47,973 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:47,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:47,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1013207383, now seen corresponding path program 1 times [2022-04-18 16:35:47,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:47,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171338560] [2022-04-18 16:35:47,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:48,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:48,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171338560] [2022-04-18 16:35:48,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171338560] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:48,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:48,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:48,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347198381] [2022-04-18 16:35:48,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:48,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:48,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:48,046 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 385 [2022-04-18 16:35:48,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 307 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:48,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 385 [2022-04-18 16:35:48,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:48,183 INFO L129 PetriNetUnfolder]: 58/670 cut-off events. [2022-04-18 16:35:48,184 INFO L130 PetriNetUnfolder]: For 24/26 co-relation queries the response was YES. [2022-04-18 16:35:48,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 670 events. 58/670 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2762 event pairs, 31 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 740. Up to 101 conditions per place. [2022-04-18 16:35:48,189 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 22 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2022-04-18 16:35:48,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 306 transitions, 673 flow [2022-04-18 16:35:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-04-18 16:35:48,191 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8467532467532467 [2022-04-18 16:35:48,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-04-18 16:35:48,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-04-18 16:35:48,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:48,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-04-18 16:35:48,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,197 INFO L186 Difference]: Start difference. First operand has 308 places, 307 transitions, 627 flow. Second operand 3 states and 978 transitions. [2022-04-18 16:35:48,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 306 transitions, 673 flow [2022-04-18 16:35:48,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 306 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:48,203 INFO L242 Difference]: Finished difference. Result has 308 places, 306 transitions, 628 flow [2022-04-18 16:35:48,203 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=308, PETRI_TRANSITIONS=306} [2022-04-18 16:35:48,204 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -49 predicate places. [2022-04-18 16:35:48,204 INFO L478 AbstractCegarLoop]: Abstraction has has 308 places, 306 transitions, 628 flow [2022-04-18 16:35:48,204 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,205 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:48,205 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:48,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:35:48,205 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:48,206 INFO L85 PathProgramCache]: Analyzing trace with hash 483636329, now seen corresponding path program 1 times [2022-04-18 16:35:48,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:48,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896340907] [2022-04-18 16:35:48,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:48,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:48,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:48,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896340907] [2022-04-18 16:35:48,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896340907] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:48,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:48,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:48,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332147387] [2022-04-18 16:35:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:48,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:48,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:48,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:48,260 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 385 [2022-04-18 16:35:48,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 306 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:48,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 385 [2022-04-18 16:35:48,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:48,355 INFO L129 PetriNetUnfolder]: 47/612 cut-off events. [2022-04-18 16:35:48,355 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-04-18 16:35:48,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 612 events. 47/612 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2274 event pairs, 23 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 655. Up to 76 conditions per place. [2022-04-18 16:35:48,360 INFO L132 encePairwiseOnDemand]: 381/385 looper letters, 17 selfloop transitions, 1 changer transitions 0/303 dead transitions. [2022-04-18 16:35:48,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 303 transitions, 658 flow [2022-04-18 16:35:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:48,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2022-04-18 16:35:48,363 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8510822510822511 [2022-04-18 16:35:48,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2022-04-18 16:35:48,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2022-04-18 16:35:48,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:48,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2022-04-18 16:35:48,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,368 INFO L186 Difference]: Start difference. First operand has 308 places, 306 transitions, 628 flow. Second operand 3 states and 983 transitions. [2022-04-18 16:35:48,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 303 transitions, 658 flow [2022-04-18 16:35:48,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 303 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:48,374 INFO L242 Difference]: Finished difference. Result has 305 places, 303 transitions, 620 flow [2022-04-18 16:35:48,374 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=305, PETRI_TRANSITIONS=303} [2022-04-18 16:35:48,375 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -52 predicate places. [2022-04-18 16:35:48,375 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 303 transitions, 620 flow [2022-04-18 16:35:48,375 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,375 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:48,375 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:48,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:35:48,376 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:48,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash 44718730, now seen corresponding path program 1 times [2022-04-18 16:35:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:48,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567463485] [2022-04-18 16:35:48,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:48,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:48,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:48,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567463485] [2022-04-18 16:35:48,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567463485] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:48,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:48,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:48,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862679249] [2022-04-18 16:35:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:48,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:48,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:48,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:48,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:48,472 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 385 [2022-04-18 16:35:48,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 303 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 287.3333333333333) internal successors, (1724), 6 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:48,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:48,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 385 [2022-04-18 16:35:48,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,003 INFO L129 PetriNetUnfolder]: 912/2296 cut-off events. [2022-04-18 16:35:49,003 INFO L130 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2022-04-18 16:35:49,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3948 conditions, 2296 events. 912/2296 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 14361 event pairs, 729 based on Foata normal form. 0/1932 useless extension candidates. Maximal degree in co-relation 3882. Up to 1373 conditions per place. [2022-04-18 16:35:49,022 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 50 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-04-18 16:35:49,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 302 transitions, 726 flow [2022-04-18 16:35:49,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1770 transitions. [2022-04-18 16:35:49,027 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2022-04-18 16:35:49,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1770 transitions. [2022-04-18 16:35:49,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1770 transitions. [2022-04-18 16:35:49,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1770 transitions. [2022-04-18 16:35:49,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,035 INFO L186 Difference]: Start difference. First operand has 305 places, 303 transitions, 620 flow. Second operand 6 states and 1770 transitions. [2022-04-18 16:35:49,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 302 transitions, 726 flow [2022-04-18 16:35:49,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 302 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:49,040 INFO L242 Difference]: Finished difference. Result has 308 places, 302 transitions, 625 flow [2022-04-18 16:35:49,041 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=625, PETRI_PLACES=308, PETRI_TRANSITIONS=302} [2022-04-18 16:35:49,042 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -49 predicate places. [2022-04-18 16:35:49,042 INFO L478 AbstractCegarLoop]: Abstraction has has 308 places, 302 transitions, 625 flow [2022-04-18 16:35:49,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.3333333333333) internal successors, (1724), 6 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,042 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,043 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:35:49,043 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1686186466, now seen corresponding path program 1 times [2022-04-18 16:35:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078111404] [2022-04-18 16:35:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:49,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:49,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078111404] [2022-04-18 16:35:49,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078111404] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:49,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:49,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:49,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881326218] [2022-04-18 16:35:49,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:49,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:49,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:49,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:49,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:49,082 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 385 [2022-04-18 16:35:49,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 302 transitions, 625 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:49,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 385 [2022-04-18 16:35:49,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,157 INFO L129 PetriNetUnfolder]: 39/430 cut-off events. [2022-04-18 16:35:49,158 INFO L130 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2022-04-18 16:35:49,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 430 events. 39/430 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1333 event pairs, 19 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 460. Up to 74 conditions per place. [2022-04-18 16:35:49,161 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 22 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-04-18 16:35:49,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 301 transitions, 671 flow [2022-04-18 16:35:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-04-18 16:35:49,164 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8467532467532467 [2022-04-18 16:35:49,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-04-18 16:35:49,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-04-18 16:35:49,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-04-18 16:35:49,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,169 INFO L186 Difference]: Start difference. First operand has 308 places, 302 transitions, 625 flow. Second operand 3 states and 978 transitions. [2022-04-18 16:35:49,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 301 transitions, 671 flow [2022-04-18 16:35:49,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 301 transitions, 664 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:49,174 INFO L242 Difference]: Finished difference. Result has 305 places, 301 transitions, 620 flow [2022-04-18 16:35:49,175 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=305, PETRI_TRANSITIONS=301} [2022-04-18 16:35:49,175 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -52 predicate places. [2022-04-18 16:35:49,176 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 301 transitions, 620 flow [2022-04-18 16:35:49,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,176 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,176 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:35:49,177 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2012183347, now seen corresponding path program 1 times [2022-04-18 16:35:49,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051359238] [2022-04-18 16:35:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:49,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:49,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051359238] [2022-04-18 16:35:49,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051359238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:49,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:49,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202136090] [2022-04-18 16:35:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:49,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:49,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:49,214 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 385 [2022-04-18 16:35:49,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 301 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:49,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 385 [2022-04-18 16:35:49,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,345 INFO L129 PetriNetUnfolder]: 42/486 cut-off events. [2022-04-18 16:35:49,346 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-04-18 16:35:49,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 486 events. 42/486 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1559 event pairs, 9 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 515. Up to 38 conditions per place. [2022-04-18 16:35:49,349 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 22 selfloop transitions, 3 changer transitions 0/305 dead transitions. [2022-04-18 16:35:49,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 305 transitions, 680 flow [2022-04-18 16:35:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-04-18 16:35:49,352 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-04-18 16:35:49,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-04-18 16:35:49,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-04-18 16:35:49,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-04-18 16:35:49,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,357 INFO L186 Difference]: Start difference. First operand has 305 places, 301 transitions, 620 flow. Second operand 3 states and 990 transitions. [2022-04-18 16:35:49,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 305 transitions, 680 flow [2022-04-18 16:35:49,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 305 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:49,363 INFO L242 Difference]: Finished difference. Result has 305 places, 301 transitions, 632 flow [2022-04-18 16:35:49,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=305, PETRI_TRANSITIONS=301} [2022-04-18 16:35:49,365 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -52 predicate places. [2022-04-18 16:35:49,365 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 301 transitions, 632 flow [2022-04-18 16:35:49,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,366 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:35:49,366 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1296182892, now seen corresponding path program 1 times [2022-04-18 16:35:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866127720] [2022-04-18 16:35:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866127720] [2022-04-18 16:35:49,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866127720] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:49,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:49,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:49,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250481510] [2022-04-18 16:35:49,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:49,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:49,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:49,418 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 385 [2022-04-18 16:35:49,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 301 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:49,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 385 [2022-04-18 16:35:49,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,516 INFO L129 PetriNetUnfolder]: 62/630 cut-off events. [2022-04-18 16:35:49,517 INFO L130 PetriNetUnfolder]: For 32/34 co-relation queries the response was YES. [2022-04-18 16:35:49,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 630 events. 62/630 cut-off events. For 32/34 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2475 event pairs, 39 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 725. Up to 104 conditions per place. [2022-04-18 16:35:49,527 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 19 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-04-18 16:35:49,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 300 transitions, 672 flow [2022-04-18 16:35:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2022-04-18 16:35:49,530 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8519480519480519 [2022-04-18 16:35:49,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 984 transitions. [2022-04-18 16:35:49,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 984 transitions. [2022-04-18 16:35:49,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 984 transitions. [2022-04-18 16:35:49,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,535 INFO L186 Difference]: Start difference. First operand has 305 places, 301 transitions, 632 flow. Second operand 3 states and 984 transitions. [2022-04-18 16:35:49,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 300 transitions, 672 flow [2022-04-18 16:35:49,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 300 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:49,541 INFO L242 Difference]: Finished difference. Result has 304 places, 300 transitions, 628 flow [2022-04-18 16:35:49,541 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=304, PETRI_TRANSITIONS=300} [2022-04-18 16:35:49,542 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -53 predicate places. [2022-04-18 16:35:49,542 INFO L478 AbstractCegarLoop]: Abstraction has has 304 places, 300 transitions, 628 flow [2022-04-18 16:35:49,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,543 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,543 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:35:49,543 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash 783924828, now seen corresponding path program 1 times [2022-04-18 16:35:49,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370206206] [2022-04-18 16:35:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:49,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:49,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370206206] [2022-04-18 16:35:49,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370206206] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:49,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:49,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:49,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586132752] [2022-04-18 16:35:49,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:49,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:49,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:49,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:49,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:49,587 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 385 [2022-04-18 16:35:49,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 300 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:49,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 385 [2022-04-18 16:35:49,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,726 INFO L129 PetriNetUnfolder]: 71/795 cut-off events. [2022-04-18 16:35:49,726 INFO L130 PetriNetUnfolder]: For 27/36 co-relation queries the response was YES. [2022-04-18 16:35:49,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 795 events. 71/795 cut-off events. For 27/36 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3664 event pairs, 28 based on Foata normal form. 1/691 useless extension candidates. Maximal degree in co-relation 898. Up to 97 conditions per place. [2022-04-18 16:35:49,731 INFO L132 encePairwiseOnDemand]: 378/385 looper letters, 18 selfloop transitions, 4 changer transitions 0/303 dead transitions. [2022-04-18 16:35:49,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 303 transitions, 683 flow [2022-04-18 16:35:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 995 transitions. [2022-04-18 16:35:49,734 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8614718614718615 [2022-04-18 16:35:49,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 995 transitions. [2022-04-18 16:35:49,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 995 transitions. [2022-04-18 16:35:49,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 995 transitions. [2022-04-18 16:35:49,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,738 INFO L186 Difference]: Start difference. First operand has 304 places, 300 transitions, 628 flow. Second operand 3 states and 995 transitions. [2022-04-18 16:35:49,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 303 transitions, 683 flow [2022-04-18 16:35:49,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 303 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:49,744 INFO L242 Difference]: Finished difference. Result has 302 places, 300 transitions, 642 flow [2022-04-18 16:35:49,744 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=302, PETRI_TRANSITIONS=300} [2022-04-18 16:35:49,744 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -55 predicate places. [2022-04-18 16:35:49,744 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 300 transitions, 642 flow [2022-04-18 16:35:49,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,745 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:35:49,745 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1927789176, now seen corresponding path program 1 times [2022-04-18 16:35:49,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428115626] [2022-04-18 16:35:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:49,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:49,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428115626] [2022-04-18 16:35:49,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428115626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:49,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:49,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347281748] [2022-04-18 16:35:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:49,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:49,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:49,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:49,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:49,805 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 385 [2022-04-18 16:35:49,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 300 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:49,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 385 [2022-04-18 16:35:49,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:49,898 INFO L129 PetriNetUnfolder]: 69/596 cut-off events. [2022-04-18 16:35:49,898 INFO L130 PetriNetUnfolder]: For 79/96 co-relation queries the response was YES. [2022-04-18 16:35:49,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 596 events. 69/596 cut-off events. For 79/96 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2583 event pairs, 29 based on Foata normal form. 3/524 useless extension candidates. Maximal degree in co-relation 739. Up to 92 conditions per place. [2022-04-18 16:35:49,903 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 19 selfloop transitions, 2 changer transitions 3/301 dead transitions. [2022-04-18 16:35:49,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 301 transitions, 694 flow [2022-04-18 16:35:49,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2022-04-18 16:35:49,906 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2022-04-18 16:35:49,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2022-04-18 16:35:49,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2022-04-18 16:35:49,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:49,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2022-04-18 16:35:49,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,911 INFO L186 Difference]: Start difference. First operand has 302 places, 300 transitions, 642 flow. Second operand 3 states and 985 transitions. [2022-04-18 16:35:49,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 301 transitions, 694 flow [2022-04-18 16:35:49,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 301 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:49,919 INFO L242 Difference]: Finished difference. Result has 301 places, 295 transitions, 631 flow [2022-04-18 16:35:49,920 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=631, PETRI_PLACES=301, PETRI_TRANSITIONS=295} [2022-04-18 16:35:49,920 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -56 predicate places. [2022-04-18 16:35:49,920 INFO L478 AbstractCegarLoop]: Abstraction has has 301 places, 295 transitions, 631 flow [2022-04-18 16:35:49,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:49,921 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:49,921 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:49,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:35:49,921 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:49,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1495205055, now seen corresponding path program 1 times [2022-04-18 16:35:49,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:49,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673782419] [2022-04-18 16:35:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:49,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:50,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:50,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673782419] [2022-04-18 16:35:50,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673782419] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:50,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:50,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:50,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582044820] [2022-04-18 16:35:50,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:50,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:50,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:50,061 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 385 [2022-04-18 16:35:50,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 295 transitions, 631 flow. Second operand has 6 states, 6 states have (on average 287.6666666666667) internal successors, (1726), 6 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:50,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 385 [2022-04-18 16:35:50,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:50,768 INFO L129 PetriNetUnfolder]: 939/2252 cut-off events. [2022-04-18 16:35:50,768 INFO L130 PetriNetUnfolder]: For 502/565 co-relation queries the response was YES. [2022-04-18 16:35:50,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4354 conditions, 2252 events. 939/2252 cut-off events. For 502/565 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 14602 event pairs, 198 based on Foata normal form. 0/2009 useless extension candidates. Maximal degree in co-relation 4285. Up to 485 conditions per place. [2022-04-18 16:35:50,795 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 129 selfloop transitions, 4 changer transitions 0/374 dead transitions. [2022-04-18 16:35:50,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 374 transitions, 1111 flow [2022-04-18 16:35:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:50,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1829 transitions. [2022-04-18 16:35:50,800 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7917748917748918 [2022-04-18 16:35:50,800 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1829 transitions. [2022-04-18 16:35:50,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1829 transitions. [2022-04-18 16:35:50,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:50,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1829 transitions. [2022-04-18 16:35:50,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,810 INFO L186 Difference]: Start difference. First operand has 301 places, 295 transitions, 631 flow. Second operand 6 states and 1829 transitions. [2022-04-18 16:35:50,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 374 transitions, 1111 flow [2022-04-18 16:35:50,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 374 transitions, 1107 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:50,818 INFO L242 Difference]: Finished difference. Result has 300 places, 294 transitions, 633 flow [2022-04-18 16:35:50,819 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=633, PETRI_PLACES=300, PETRI_TRANSITIONS=294} [2022-04-18 16:35:50,820 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -57 predicate places. [2022-04-18 16:35:50,820 INFO L478 AbstractCegarLoop]: Abstraction has has 300 places, 294 transitions, 633 flow [2022-04-18 16:35:50,820 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.6666666666667) internal successors, (1726), 6 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,820 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:50,821 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:50,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:35:50,821 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1400790895, now seen corresponding path program 1 times [2022-04-18 16:35:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:50,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658014343] [2022-04-18 16:35:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:50,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:50,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658014343] [2022-04-18 16:35:50,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658014343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:50,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:50,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 16:35:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972417987] [2022-04-18 16:35:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:50,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 16:35:50,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 16:35:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-04-18 16:35:50,924 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 385 [2022-04-18 16:35:50,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 294 transitions, 633 flow. Second operand has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:50,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:50,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 385 [2022-04-18 16:35:50,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:51,332 INFO L129 PetriNetUnfolder]: 252/1681 cut-off events. [2022-04-18 16:35:51,333 INFO L130 PetriNetUnfolder]: For 198/228 co-relation queries the response was YES. [2022-04-18 16:35:51,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2498 conditions, 1681 events. 252/1681 cut-off events. For 198/228 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 10882 event pairs, 93 based on Foata normal form. 1/1471 useless extension candidates. Maximal degree in co-relation 2428. Up to 219 conditions per place. [2022-04-18 16:35:51,348 INFO L132 encePairwiseOnDemand]: 374/385 looper letters, 105 selfloop transitions, 10 changer transitions 0/344 dead transitions. [2022-04-18 16:35:51,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 344 transitions, 999 flow [2022-04-18 16:35:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 16:35:51,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 16:35:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2601 transitions. [2022-04-18 16:35:51,354 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7506493506493507 [2022-04-18 16:35:51,354 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2601 transitions. [2022-04-18 16:35:51,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2601 transitions. [2022-04-18 16:35:51,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:51,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2601 transitions. [2022-04-18 16:35:51,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 289.0) internal successors, (2601), 9 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 385.0) internal successors, (3850), 10 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,367 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 385.0) internal successors, (3850), 10 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,367 INFO L186 Difference]: Start difference. First operand has 300 places, 294 transitions, 633 flow. Second operand 9 states and 2601 transitions. [2022-04-18 16:35:51,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 344 transitions, 999 flow [2022-04-18 16:35:51,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 344 transitions, 992 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:51,374 INFO L242 Difference]: Finished difference. Result has 307 places, 298 transitions, 675 flow [2022-04-18 16:35:51,374 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=675, PETRI_PLACES=307, PETRI_TRANSITIONS=298} [2022-04-18 16:35:51,375 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -50 predicate places. [2022-04-18 16:35:51,375 INFO L478 AbstractCegarLoop]: Abstraction has has 307 places, 298 transitions, 675 flow [2022-04-18 16:35:51,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,376 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:51,376 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:51,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:35:51,376 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:51,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:51,377 INFO L85 PathProgramCache]: Analyzing trace with hash -333546513, now seen corresponding path program 1 times [2022-04-18 16:35:51,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:51,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705774099] [2022-04-18 16:35:51,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:51,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:51,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:51,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705774099] [2022-04-18 16:35:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705774099] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:51,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122159670] [2022-04-18 16:35:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:51,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:51,422 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 385 [2022-04-18 16:35:51,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 298 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:51,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 385 [2022-04-18 16:35:51,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:51,602 INFO L129 PetriNetUnfolder]: 122/1239 cut-off events. [2022-04-18 16:35:51,603 INFO L130 PetriNetUnfolder]: For 163/193 co-relation queries the response was YES. [2022-04-18 16:35:51,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 1239 events. 122/1239 cut-off events. For 163/193 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7567 event pairs, 21 based on Foata normal form. 6/1117 useless extension candidates. Maximal degree in co-relation 1600. Up to 145 conditions per place. [2022-04-18 16:35:51,613 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 18 selfloop transitions, 3 changer transitions 0/301 dead transitions. [2022-04-18 16:35:51,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 301 transitions, 733 flow [2022-04-18 16:35:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1000 transitions. [2022-04-18 16:35:51,616 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8658008658008658 [2022-04-18 16:35:51,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1000 transitions. [2022-04-18 16:35:51,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1000 transitions. [2022-04-18 16:35:51,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:51,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1000 transitions. [2022-04-18 16:35:51,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,622 INFO L186 Difference]: Start difference. First operand has 307 places, 298 transitions, 675 flow. Second operand 3 states and 1000 transitions. [2022-04-18 16:35:51,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 301 transitions, 733 flow [2022-04-18 16:35:51,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 301 transitions, 722 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:51,628 INFO L242 Difference]: Finished difference. Result has 304 places, 297 transitions, 674 flow [2022-04-18 16:35:51,628 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=304, PETRI_TRANSITIONS=297} [2022-04-18 16:35:51,629 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -53 predicate places. [2022-04-18 16:35:51,629 INFO L478 AbstractCegarLoop]: Abstraction has has 304 places, 297 transitions, 674 flow [2022-04-18 16:35:51,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:51,630 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:51,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:35:51,630 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:51,631 INFO L85 PathProgramCache]: Analyzing trace with hash -332592207, now seen corresponding path program 1 times [2022-04-18 16:35:51,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:51,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645194669] [2022-04-18 16:35:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:51,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:51,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:51,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645194669] [2022-04-18 16:35:51,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645194669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:51,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:51,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657577387] [2022-04-18 16:35:51,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:51,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:51,677 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 385 [2022-04-18 16:35:51,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 297 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:51,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 385 [2022-04-18 16:35:51,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:51,885 INFO L129 PetriNetUnfolder]: 195/1280 cut-off events. [2022-04-18 16:35:51,885 INFO L130 PetriNetUnfolder]: For 340/396 co-relation queries the response was YES. [2022-04-18 16:35:51,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2015 conditions, 1280 events. 195/1280 cut-off events. For 340/396 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8287 event pairs, 92 based on Foata normal form. 13/1182 useless extension candidates. Maximal degree in co-relation 1943. Up to 286 conditions per place. [2022-04-18 16:35:51,895 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 22 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-04-18 16:35:51,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 300 transitions, 737 flow [2022-04-18 16:35:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2022-04-18 16:35:51,898 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8458874458874459 [2022-04-18 16:35:51,899 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2022-04-18 16:35:51,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2022-04-18 16:35:51,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:51,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2022-04-18 16:35:51,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,903 INFO L186 Difference]: Start difference. First operand has 304 places, 297 transitions, 674 flow. Second operand 3 states and 977 transitions. [2022-04-18 16:35:51,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 300 transitions, 737 flow [2022-04-18 16:35:51,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 300 transitions, 730 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:51,910 INFO L242 Difference]: Finished difference. Result has 303 places, 296 transitions, 669 flow [2022-04-18 16:35:51,910 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=303, PETRI_TRANSITIONS=296} [2022-04-18 16:35:51,911 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -54 predicate places. [2022-04-18 16:35:51,911 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 296 transitions, 669 flow [2022-04-18 16:35:51,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,911 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:51,912 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:51,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:35:51,912 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1587819767, now seen corresponding path program 1 times [2022-04-18 16:35:51,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:51,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221615890] [2022-04-18 16:35:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:51,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:51,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:51,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221615890] [2022-04-18 16:35:51,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221615890] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:51,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:51,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343357978] [2022-04-18 16:35:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:51,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:51,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:51,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:51,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:51,961 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 385 [2022-04-18 16:35:51,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 296 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:51,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:51,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 385 [2022-04-18 16:35:51,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:52,218 INFO L129 PetriNetUnfolder]: 131/1198 cut-off events. [2022-04-18 16:35:52,218 INFO L130 PetriNetUnfolder]: For 190/225 co-relation queries the response was YES. [2022-04-18 16:35:52,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 1198 events. 131/1198 cut-off events. For 190/225 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7177 event pairs, 59 based on Foata normal form. 7/1120 useless extension candidates. Maximal degree in co-relation 1696. Up to 209 conditions per place. [2022-04-18 16:35:52,229 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 25 selfloop transitions, 3 changer transitions 0/299 dead transitions. [2022-04-18 16:35:52,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 740 flow [2022-04-18 16:35:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:52,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2022-04-18 16:35:52,232 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8476190476190476 [2022-04-18 16:35:52,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2022-04-18 16:35:52,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2022-04-18 16:35:52,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:52,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2022-04-18 16:35:52,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:52,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:52,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:52,237 INFO L186 Difference]: Start difference. First operand has 303 places, 296 transitions, 669 flow. Second operand 3 states and 979 transitions. [2022-04-18 16:35:52,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 740 flow [2022-04-18 16:35:52,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 299 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:52,245 INFO L242 Difference]: Finished difference. Result has 302 places, 295 transitions, 669 flow [2022-04-18 16:35:52,245 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=302, PETRI_TRANSITIONS=295} [2022-04-18 16:35:52,246 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -55 predicate places. [2022-04-18 16:35:52,246 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 295 transitions, 669 flow [2022-04-18 16:35:52,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:52,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:52,247 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:52,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:35:52,247 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash 228910707, now seen corresponding path program 1 times [2022-04-18 16:35:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:52,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240093840] [2022-04-18 16:35:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 16:35:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:52,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240093840] [2022-04-18 16:35:52,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240093840] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:52,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:52,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:52,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510319608] [2022-04-18 16:35:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:52,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:52,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:52,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:52,363 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 385 [2022-04-18 16:35:52,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 295 transitions, 669 flow. Second operand has 6 states, 6 states have (on average 286.6666666666667) internal successors, (1720), 6 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:52,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:52,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 385 [2022-04-18 16:35:52,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:53,628 INFO L129 PetriNetUnfolder]: 1953/5863 cut-off events. [2022-04-18 16:35:53,629 INFO L130 PetriNetUnfolder]: For 1347/1347 co-relation queries the response was YES. [2022-04-18 16:35:53,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 5863 events. 1953/5863 cut-off events. For 1347/1347 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 49482 event pairs, 584 based on Foata normal form. 0/5517 useless extension candidates. Maximal degree in co-relation 10393. Up to 1458 conditions per place. [2022-04-18 16:35:53,681 INFO L132 encePairwiseOnDemand]: 378/385 looper letters, 91 selfloop transitions, 6 changer transitions 0/333 dead transitions. [2022-04-18 16:35:53,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 333 transitions, 975 flow [2022-04-18 16:35:53,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1788 transitions. [2022-04-18 16:35:53,686 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7740259740259741 [2022-04-18 16:35:53,686 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1788 transitions. [2022-04-18 16:35:53,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1788 transitions. [2022-04-18 16:35:53,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:53,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1788 transitions. [2022-04-18 16:35:53,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:53,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:53,694 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:53,694 INFO L186 Difference]: Start difference. First operand has 302 places, 295 transitions, 669 flow. Second operand 6 states and 1788 transitions. [2022-04-18 16:35:53,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 333 transitions, 975 flow [2022-04-18 16:35:53,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 333 transitions, 969 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:53,701 INFO L242 Difference]: Finished difference. Result has 303 places, 293 transitions, 671 flow [2022-04-18 16:35:53,701 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=671, PETRI_PLACES=303, PETRI_TRANSITIONS=293} [2022-04-18 16:35:53,702 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -54 predicate places. [2022-04-18 16:35:53,702 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 293 transitions, 671 flow [2022-04-18 16:35:53,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 286.6666666666667) internal successors, (1720), 6 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:53,703 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:53,703 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:53,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:35:53,704 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1076825789, now seen corresponding path program 1 times [2022-04-18 16:35:53,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:53,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288187925] [2022-04-18 16:35:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:53,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:53,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:53,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288187925] [2022-04-18 16:35:53,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288187925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:53,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:53,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:53,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970900386] [2022-04-18 16:35:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:53,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:53,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:53,811 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 385 [2022-04-18 16:35:53,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 293 transitions, 671 flow. Second operand has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:53,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:53,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 385 [2022-04-18 16:35:53,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:54,886 INFO L129 PetriNetUnfolder]: 1529/5195 cut-off events. [2022-04-18 16:35:54,887 INFO L130 PetriNetUnfolder]: For 1237/1629 co-relation queries the response was YES. [2022-04-18 16:35:54,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9056 conditions, 5195 events. 1529/5195 cut-off events. For 1237/1629 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 44117 event pairs, 1297 based on Foata normal form. 0/4853 useless extension candidates. Maximal degree in co-relation 8984. Up to 2265 conditions per place. [2022-04-18 16:35:54,921 INFO L132 encePairwiseOnDemand]: 380/385 looper letters, 63 selfloop transitions, 4 changer transitions 1/308 dead transitions. [2022-04-18 16:35:54,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 308 transitions, 863 flow [2022-04-18 16:35:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1770 transitions. [2022-04-18 16:35:54,928 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2022-04-18 16:35:54,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1770 transitions. [2022-04-18 16:35:54,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1770 transitions. [2022-04-18 16:35:54,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:54,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1770 transitions. [2022-04-18 16:35:54,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:54,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:54,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 385.0) internal successors, (2695), 7 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:54,939 INFO L186 Difference]: Start difference. First operand has 303 places, 293 transitions, 671 flow. Second operand 6 states and 1770 transitions. [2022-04-18 16:35:54,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 308 transitions, 863 flow [2022-04-18 16:35:54,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 308 transitions, 851 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:35:54,946 INFO L242 Difference]: Finished difference. Result has 302 places, 291 transitions, 659 flow [2022-04-18 16:35:54,946 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=302, PETRI_TRANSITIONS=291} [2022-04-18 16:35:54,946 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -55 predicate places. [2022-04-18 16:35:54,947 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 291 transitions, 659 flow [2022-04-18 16:35:54,947 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:54,948 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:54,948 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:54,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 16:35:54,948 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:54,949 INFO L85 PathProgramCache]: Analyzing trace with hash 939898901, now seen corresponding path program 1 times [2022-04-18 16:35:54,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:54,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915428427] [2022-04-18 16:35:54,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:54,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 16:35:54,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:54,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915428427] [2022-04-18 16:35:54,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915428427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:54,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:54,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:54,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904661947] [2022-04-18 16:35:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:54,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:54,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:54,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:54,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:54,994 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 385 [2022-04-18 16:35:54,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 291 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:54,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:54,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 385 [2022-04-18 16:35:54,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:55,193 INFO L129 PetriNetUnfolder]: 131/1363 cut-off events. [2022-04-18 16:35:55,195 INFO L130 PetriNetUnfolder]: For 168/177 co-relation queries the response was YES. [2022-04-18 16:35:55,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1884 conditions, 1363 events. 131/1363 cut-off events. For 168/177 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8106 event pairs, 43 based on Foata normal form. 0/1299 useless extension candidates. Maximal degree in co-relation 1814. Up to 119 conditions per place. [2022-04-18 16:35:55,207 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 28 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-04-18 16:35:55,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 301 transitions, 760 flow [2022-04-18 16:35:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 995 transitions. [2022-04-18 16:35:55,210 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8614718614718615 [2022-04-18 16:35:55,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 995 transitions. [2022-04-18 16:35:55,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 995 transitions. [2022-04-18 16:35:55,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:55,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 995 transitions. [2022-04-18 16:35:55,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,214 INFO L186 Difference]: Start difference. First operand has 302 places, 291 transitions, 659 flow. Second operand 3 states and 995 transitions. [2022-04-18 16:35:55,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 301 transitions, 760 flow [2022-04-18 16:35:55,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 301 transitions, 751 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-04-18 16:35:55,224 INFO L242 Difference]: Finished difference. Result has 298 places, 291 transitions, 658 flow [2022-04-18 16:35:55,225 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=298, PETRI_TRANSITIONS=291} [2022-04-18 16:35:55,226 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -59 predicate places. [2022-04-18 16:35:55,226 INFO L478 AbstractCegarLoop]: Abstraction has has 298 places, 291 transitions, 658 flow [2022-04-18 16:35:55,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,226 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:55,227 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:55,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 16:35:55,227 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2022-04-18 16:35:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:55,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2002442183, now seen corresponding path program 1 times [2022-04-18 16:35:55,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:55,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924337710] [2022-04-18 16:35:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:55,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 16:35:55,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:55,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924337710] [2022-04-18 16:35:55,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924337710] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:55,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:55,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117578468] [2022-04-18 16:35:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:55,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:55,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:55,283 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 385 [2022-04-18 16:35:55,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 291 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:55,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 385 [2022-04-18 16:35:55,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:55,529 INFO L129 PetriNetUnfolder]: 138/1298 cut-off events. [2022-04-18 16:35:55,529 INFO L130 PetriNetUnfolder]: For 183/194 co-relation queries the response was YES. [2022-04-18 16:35:55,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 1298 events. 138/1298 cut-off events. For 183/194 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7826 event pairs, 72 based on Foata normal form. 0/1252 useless extension candidates. Maximal degree in co-relation 1766. Up to 200 conditions per place. [2022-04-18 16:35:55,538 INFO L132 encePairwiseOnDemand]: 382/385 looper letters, 0 selfloop transitions, 0 changer transitions 295/295 dead transitions. [2022-04-18 16:35:55,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 295 transitions, 726 flow [2022-04-18 16:35:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2022-04-18 16:35:55,543 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545 [2022-04-18 16:35:55,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2022-04-18 16:35:55,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2022-04-18 16:35:55,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:55,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2022-04-18 16:35:55,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,548 INFO L186 Difference]: Start difference. First operand has 298 places, 291 transitions, 658 flow. Second operand 3 states and 987 transitions. [2022-04-18 16:35:55,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 295 transitions, 726 flow [2022-04-18 16:35:55,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 295 transitions, 724 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:55,552 INFO L242 Difference]: Finished difference. Result has 298 places, 0 transitions, 0 flow [2022-04-18 16:35:55,552 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=298, PETRI_TRANSITIONS=0} [2022-04-18 16:35:55,553 INFO L335 CegarLoopForPetriNet]: 357 programPoint places, -59 predicate places. [2022-04-18 16:35:55,553 INFO L478 AbstractCegarLoop]: Abstraction has has 298 places, 0 transitions, 0 flow [2022-04-18 16:35:55,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:55,557 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (118 of 119 remaining) [2022-04-18 16:35:55,559 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (117 of 119 remaining) [2022-04-18 16:35:55,559 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (116 of 119 remaining) [2022-04-18 16:35:55,560 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (115 of 119 remaining) [2022-04-18 16:35:55,560 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (114 of 119 remaining) [2022-04-18 16:35:55,560 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (113 of 119 remaining) [2022-04-18 16:35:55,560 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (112 of 119 remaining) [2022-04-18 16:35:55,560 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (111 of 119 remaining) [2022-04-18 16:35:55,561 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (110 of 119 remaining) [2022-04-18 16:35:55,561 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (109 of 119 remaining) [2022-04-18 16:35:55,561 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (108 of 119 remaining) [2022-04-18 16:35:55,561 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (107 of 119 remaining) [2022-04-18 16:35:55,563 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (106 of 119 remaining) [2022-04-18 16:35:55,563 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (105 of 119 remaining) [2022-04-18 16:35:55,563 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (104 of 119 remaining) [2022-04-18 16:35:55,563 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (103 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (102 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONDATA_RACE (101 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONDATA_RACE (100 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (99 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (98 of 119 remaining) [2022-04-18 16:35:55,564 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONDATA_RACE (97 of 119 remaining) [2022-04-18 16:35:55,565 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONDATA_RACE (96 of 119 remaining) [2022-04-18 16:35:55,565 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (95 of 119 remaining) [2022-04-18 16:35:55,565 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (94 of 119 remaining) [2022-04-18 16:35:55,565 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (93 of 119 remaining) [2022-04-18 16:35:55,565 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (92 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (91 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (90 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (89 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (88 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (87 of 119 remaining) [2022-04-18 16:35:55,566 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (86 of 119 remaining) [2022-04-18 16:35:55,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (85 of 119 remaining) [2022-04-18 16:35:55,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (84 of 119 remaining) [2022-04-18 16:35:55,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (83 of 119 remaining) [2022-04-18 16:35:55,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (82 of 119 remaining) [2022-04-18 16:35:55,567 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (81 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (80 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (79 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (78 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (77 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (76 of 119 remaining) [2022-04-18 16:35:55,568 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (75 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (74 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (73 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (72 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (71 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (70 of 119 remaining) [2022-04-18 16:35:55,569 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (69 of 119 remaining) [2022-04-18 16:35:55,570 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (68 of 119 remaining) [2022-04-18 16:35:55,570 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (67 of 119 remaining) [2022-04-18 16:35:55,570 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (66 of 119 remaining) [2022-04-18 16:35:55,570 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (65 of 119 remaining) [2022-04-18 16:35:55,570 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (64 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (63 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (62 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (61 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (60 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (59 of 119 remaining) [2022-04-18 16:35:55,571 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (58 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (57 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (56 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (55 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (54 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (53 of 119 remaining) [2022-04-18 16:35:55,572 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (52 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (51 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (50 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (47 of 119 remaining) [2022-04-18 16:35:55,573 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (46 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (45 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (44 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (43 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (42 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (41 of 119 remaining) [2022-04-18 16:35:55,574 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (40 of 119 remaining) [2022-04-18 16:35:55,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (39 of 119 remaining) [2022-04-18 16:35:55,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (38 of 119 remaining) [2022-04-18 16:35:55,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (37 of 119 remaining) [2022-04-18 16:35:55,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (36 of 119 remaining) [2022-04-18 16:35:55,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (35 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (34 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (33 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (32 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (31 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONDATA_RACE (30 of 119 remaining) [2022-04-18 16:35:55,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONDATA_RACE (29 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (28 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (27 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONDATA_RACE (26 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONDATA_RACE (25 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (24 of 119 remaining) [2022-04-18 16:35:55,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (23 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (21 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (20 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (19 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (18 of 119 remaining) [2022-04-18 16:35:55,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (17 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (16 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (15 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (14 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (13 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (12 of 119 remaining) [2022-04-18 16:35:55,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (11 of 119 remaining) [2022-04-18 16:35:55,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (10 of 119 remaining) [2022-04-18 16:35:55,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (9 of 119 remaining) [2022-04-18 16:35:55,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (8 of 119 remaining) [2022-04-18 16:35:55,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (7 of 119 remaining) [2022-04-18 16:35:55,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (6 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (5 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (4 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (3 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (2 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (1 of 119 remaining) [2022-04-18 16:35:55,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (0 of 119 remaining) [2022-04-18 16:35:55,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 16:35:55,585 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:55,591 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:35:55,591 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:35:55,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:35:55 BasicIcfg [2022-04-18 16:35:55,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:35:55,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:35:55,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:35:55,597 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:35:55,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:44" (3/4) ... [2022-04-18 16:35:55,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:35:55,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:35:55,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:35:55,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-04-18 16:35:55,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:35:55,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:35:55,617 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:35:55,658 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:35:55,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:35:55,659 INFO L158 Benchmark]: Toolchain (without parser) took 12191.25ms. Allocated memory was 132.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.5MB in the beginning and 933.6MB in the end (delta: -841.1MB). Peak memory consumption was 275.9MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,659 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:35:55,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.53ms. Allocated memory is still 132.1MB. Free memory was 92.3MB in the beginning and 102.5MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.11ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 98.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,660 INFO L158 Benchmark]: Boogie Preprocessor took 40.71ms. Allocated memory is still 132.1MB. Free memory was 98.8MB in the beginning and 96.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,660 INFO L158 Benchmark]: RCFGBuilder took 1027.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 96.2MB in the beginning and 108.9MB in the end (delta: -12.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,661 INFO L158 Benchmark]: TraceAbstraction took 10684.95ms. Allocated memory was 159.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 108.6MB in the beginning and 938.8MB in the end (delta: -830.2MB). Peak memory consumption was 406.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,661 INFO L158 Benchmark]: Witness Printer took 61.71ms. Allocated memory is still 1.2GB. Free memory was 938.8MB in the beginning and 933.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:35:55,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.53ms. Allocated memory is still 132.1MB. Free memory was 92.3MB in the beginning and 102.5MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.11ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 98.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.71ms. Allocated memory is still 132.1MB. Free memory was 98.8MB in the beginning and 96.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 96.2MB in the beginning and 108.9MB in the end (delta: -12.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10684.95ms. Allocated memory was 159.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 108.6MB in the beginning and 938.8MB in the end (delta: -830.2MB). Peak memory consumption was 406.1MB. Max. memory is 16.1GB. * Witness Printer took 61.71ms. Allocated memory is still 1.2GB. Free memory was 938.8MB in the beginning and 933.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 490 locations, 119 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 400 mSDsluCounter, 388 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246 mSDsCounter, 190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1403 IncrementalHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 190 mSolverCounterUnsat, 343 mSDtfsCounter, 1403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=742occurred in iteration=0, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 3402 NumberOfCodeBlocks, 3402 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3375 ConstructedInterpolants, 0 QuantifiedInterpolants, 4463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 69 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:35:55,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE