./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.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/unroll-2.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 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:39,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:39,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:40,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:40,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:40,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:40,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:40,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:40,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:40,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:40,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:40,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:40,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:40,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:40,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:40,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:40,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:40,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:40,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:40,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:40,036 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:40,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:40,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:40,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:40,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:40,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:40,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:40,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:40,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:40,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:40,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:40,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:40,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:40,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:40,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:40,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:40,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:40,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:40,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:40,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:40,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:40,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:40,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:40,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:40,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:40,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:40,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:40,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:40,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:40,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:40,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:40,082 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:40,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:40,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:40,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:40,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:40,084 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:40,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:40,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:40,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:40,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:40,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:40,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:40,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:40,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:40,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:40,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:40,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:40,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2022-04-18 16:36:40,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:40,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:40,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:40,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:40,299 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:40,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c [2022-04-18 16:36:40,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014ed931b/80504f4af61a414aa9512c038432a60c/FLAGadff6e573 [2022-04-18 16:36:40,709 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:40,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c [2022-04-18 16:36:40,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014ed931b/80504f4af61a414aa9512c038432a60c/FLAGadff6e573 [2022-04-18 16:36:41,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014ed931b/80504f4af61a414aa9512c038432a60c [2022-04-18 16:36:41,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:41,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:41,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:41,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:41,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:41,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e175471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41, skipping insertion in model container [2022-04-18 16:36:41,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:41,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:41,307 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/unroll-2.wvr.c[2428,2441] [2022-04-18 16:36:41,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:41,315 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:41,345 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/unroll-2.wvr.c[2428,2441] [2022-04-18 16:36:41,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:41,357 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:41,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41 WrapperNode [2022-04-18 16:36:41,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:41,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:41,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:41,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:41,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,415 INFO L137 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 246 [2022-04-18 16:36:41,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:41,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:41,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:41,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:41,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:41,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:41,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:41,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:41,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (1/1) ... [2022-04-18 16:36:41,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:41,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:41,502 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 16:36:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:41,523 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 16:36:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:41,536 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 16:36:41,602 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:41,603 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:41,959 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:41,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:41,974 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:41,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:41 BoogieIcfgContainer [2022-04-18 16:36:41,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:41,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:41,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:41,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:41,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:41" (1/3) ... [2022-04-18 16:36:41,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be6be50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:41, skipping insertion in model container [2022-04-18 16:36:41,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:41" (2/3) ... [2022-04-18 16:36:41,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be6be50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:41, skipping insertion in model container [2022-04-18 16:36:41,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:41" (3/3) ... [2022-04-18 16:36:41,983 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2022-04-18 16:36:41,987 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:41,987 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:41,987 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-04-18 16:36:41,987 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:42,061 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:42,092 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:42,098 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 16:36:42,098 INFO L341 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-04-18 16:36:42,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 319 transitions, 654 flow [2022-04-18 16:36:42,209 INFO L129 PetriNetUnfolder]: 17/317 cut-off events. [2022-04-18 16:36:42,209 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:42,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 317 events. 17/317 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 505 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 176. Up to 2 conditions per place. [2022-04-18 16:36:42,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 309 places, 319 transitions, 654 flow [2022-04-18 16:36:42,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 290 places, 299 transitions, 610 flow [2022-04-18 16:36:42,234 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2022-04-18 16:36:42,234 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:42,234 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:42,234 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] [2022-04-18 16:36:42,235 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:42,240 INFO L85 PathProgramCache]: Analyzing trace with hash 150152261, now seen corresponding path program 1 times [2022-04-18 16:36:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:42,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860297675] [2022-04-18 16:36:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:42,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:42,382 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 16:36:42,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860297675] [2022-04-18 16:36:42,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860297675] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:42,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:42,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:42,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760643170] [2022-04-18 16:36:42,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:42,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:42,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:42,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:42,419 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-04-18 16:36:42,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 299 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:42,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:42,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-04-18 16:36:42,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:42,658 INFO L129 PetriNetUnfolder]: 39/798 cut-off events. [2022-04-18 16:36:42,658 INFO L130 PetriNetUnfolder]: For 20/50 co-relation queries the response was YES. [2022-04-18 16:36:42,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 798 events. 39/798 cut-off events. For 20/50 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3821 event pairs, 15 based on Foata normal form. 18/658 useless extension candidates. Maximal degree in co-relation 665. Up to 55 conditions per place. [2022-04-18 16:36:42,665 INFO L132 encePairwiseOnDemand]: 306/319 looper letters, 16 selfloop transitions, 2 changer transitions 4/288 dead transitions. [2022-04-18 16:36:42,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 288 transitions, 624 flow [2022-04-18 16:36:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2022-04-18 16:36:42,678 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9331243469174504 [2022-04-18 16:36:42,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2022-04-18 16:36:42,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2022-04-18 16:36:42,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:42,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2022-04-18 16:36:42,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 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 16:36:42,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:42,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:42,703 INFO L186 Difference]: Start difference. First operand has 290 places, 299 transitions, 610 flow. Second operand 3 states and 893 transitions. [2022-04-18 16:36:42,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 288 transitions, 624 flow [2022-04-18 16:36:42,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 288 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:42,713 INFO L242 Difference]: Finished difference. Result has 287 places, 284 transitions, 576 flow [2022-04-18 16:36:42,715 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2022-04-18 16:36:42,719 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -3 predicate places. [2022-04-18 16:36:42,720 INFO L478 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 576 flow [2022-04-18 16:36:42,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:42,720 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:42,721 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] [2022-04-18 16:36:42,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:42,721 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash 81775376, now seen corresponding path program 1 times [2022-04-18 16:36:42,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140489131] [2022-04-18 16:36:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:42,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:42,780 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 16:36:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:42,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140489131] [2022-04-18 16:36:42,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140489131] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:42,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:42,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:42,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441936289] [2022-04-18 16:36:42,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:42,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:42,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:42,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:42,786 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 319 [2022-04-18 16:36:42,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 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 16:36:42,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:42,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 319 [2022-04-18 16:36:42,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:42,927 INFO L129 PetriNetUnfolder]: 66/884 cut-off events. [2022-04-18 16:36:42,927 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-04-18 16:36:42,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 884 events. 66/884 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4075 event pairs, 27 based on Foata normal form. 0/710 useless extension candidates. Maximal degree in co-relation 962. Up to 98 conditions per place. [2022-04-18 16:36:42,937 INFO L132 encePairwiseOnDemand]: 316/319 looper letters, 22 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2022-04-18 16:36:42,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 283 transitions, 622 flow [2022-04-18 16:36:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-04-18 16:36:42,943 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.910135841170324 [2022-04-18 16:36:42,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-04-18 16:36:42,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-04-18 16:36:42,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:42,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-04-18 16:36:42,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 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 16:36:42,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:42,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:42,947 INFO L186 Difference]: Start difference. First operand has 287 places, 284 transitions, 576 flow. Second operand 3 states and 871 transitions. [2022-04-18 16:36:42,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 283 transitions, 622 flow [2022-04-18 16:36:42,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 283 transitions, 618 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:42,954 INFO L242 Difference]: Finished difference. Result has 282 places, 283 transitions, 574 flow [2022-04-18 16:36:42,954 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2022-04-18 16:36:42,955 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -8 predicate places. [2022-04-18 16:36:42,955 INFO L478 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 574 flow [2022-04-18 16:36:42,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 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 16:36:42,956 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:42,956 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] [2022-04-18 16:36:42,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:42,956 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1405754548, now seen corresponding path program 1 times [2022-04-18 16:36:42,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:42,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713299804] [2022-04-18 16:36:42,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:42,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:43,000 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 16:36:43,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:43,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713299804] [2022-04-18 16:36:43,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713299804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:43,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:43,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123132049] [2022-04-18 16:36:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:43,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:43,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:43,003 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 319 [2022-04-18 16:36:43,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 16:36:43,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:43,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 319 [2022-04-18 16:36:43,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:43,156 INFO L129 PetriNetUnfolder]: 45/758 cut-off events. [2022-04-18 16:36:43,156 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-04-18 16:36:43,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 758 events. 45/758 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3167 event pairs, 14 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 787. Up to 57 conditions per place. [2022-04-18 16:36:43,162 INFO L132 encePairwiseOnDemand]: 313/319 looper letters, 15 selfloop transitions, 1 changer transitions 0/278 dead transitions. [2022-04-18 16:36:43,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 278 transitions, 596 flow [2022-04-18 16:36:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-04-18 16:36:43,165 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9153605015673981 [2022-04-18 16:36:43,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-04-18 16:36:43,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-04-18 16:36:43,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:43,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-04-18 16:36:43,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 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 16:36:43,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:43,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:43,170 INFO L186 Difference]: Start difference. First operand has 282 places, 283 transitions, 574 flow. Second operand 3 states and 876 transitions. [2022-04-18 16:36:43,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 278 transitions, 596 flow [2022-04-18 16:36:43,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 278 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:43,174 INFO L242 Difference]: Finished difference. Result has 277 places, 278 transitions, 562 flow [2022-04-18 16:36:43,174 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=277, PETRI_TRANSITIONS=278} [2022-04-18 16:36:43,176 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -13 predicate places. [2022-04-18 16:36:43,176 INFO L478 AbstractCegarLoop]: Abstraction has has 277 places, 278 transitions, 562 flow [2022-04-18 16:36:43,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 16:36:43,177 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:43,177 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] [2022-04-18 16:36:43,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:43,177 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:43,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash 563939520, now seen corresponding path program 1 times [2022-04-18 16:36:43,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:43,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668844500] [2022-04-18 16:36:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:43,252 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 16:36:43,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:43,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668844500] [2022-04-18 16:36:43,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668844500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:43,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:43,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992837343] [2022-04-18 16:36:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:43,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:43,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:43,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:43,259 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-04-18 16:36:43,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 278 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:43,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:43,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-04-18 16:36:43,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:43,346 INFO L129 PetriNetUnfolder]: 62/809 cut-off events. [2022-04-18 16:36:43,346 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-04-18 16:36:43,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 809 events. 62/809 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3589 event pairs, 27 based on Foata normal form. 0/667 useless extension candidates. Maximal degree in co-relation 870. Up to 89 conditions per place. [2022-04-18 16:36:43,352 INFO L132 encePairwiseOnDemand]: 316/319 looper letters, 16 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2022-04-18 16:36:43,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 277 transitions, 596 flow [2022-04-18 16:36:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2022-04-18 16:36:43,354 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.922675026123302 [2022-04-18 16:36:43,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 883 transitions. [2022-04-18 16:36:43,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 883 transitions. [2022-04-18 16:36:43,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:43,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 883 transitions. [2022-04-18 16:36:43,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 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 16:36:43,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:43,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:43,361 INFO L186 Difference]: Start difference. First operand has 277 places, 278 transitions, 562 flow. Second operand 3 states and 883 transitions. [2022-04-18 16:36:43,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 277 transitions, 596 flow [2022-04-18 16:36:43,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 277 transitions, 595 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:43,365 INFO L242 Difference]: Finished difference. Result has 277 places, 277 transitions, 563 flow [2022-04-18 16:36:43,365 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=563, PETRI_PLACES=277, PETRI_TRANSITIONS=277} [2022-04-18 16:36:43,367 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -13 predicate places. [2022-04-18 16:36:43,367 INFO L478 AbstractCegarLoop]: Abstraction has has 277 places, 277 transitions, 563 flow [2022-04-18 16:36:43,368 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:43,368 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:43,368 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] [2022-04-18 16:36:43,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:43,368 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1963314716, now seen corresponding path program 1 times [2022-04-18 16:36:43,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:43,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998777223] [2022-04-18 16:36:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:43,533 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 16:36:43,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:43,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998777223] [2022-04-18 16:36:43,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998777223] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:43,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:43,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351574409] [2022-04-18 16:36:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:43,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:43,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:43,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:43,536 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 319 [2022-04-18 16:36:43,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 277 transitions, 563 flow. Second operand has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 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 16:36:43,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:43,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 319 [2022-04-18 16:36:43,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:44,308 INFO L129 PetriNetUnfolder]: 1424/7348 cut-off events. [2022-04-18 16:36:44,308 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-04-18 16:36:44,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9407 conditions, 7348 events. 1424/7348 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 72416 event pairs, 1134 based on Foata normal form. 0/5905 useless extension candidates. Maximal degree in co-relation 9370. Up to 2041 conditions per place. [2022-04-18 16:36:44,375 INFO L132 encePairwiseOnDemand]: 313/319 looper letters, 45 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2022-04-18 16:36:44,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 276 transitions, 661 flow [2022-04-18 16:36:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1587 transitions. [2022-04-18 16:36:44,379 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.829153605015674 [2022-04-18 16:36:44,379 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1587 transitions. [2022-04-18 16:36:44,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1587 transitions. [2022-04-18 16:36:44,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:44,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1587 transitions. [2022-04-18 16:36:44,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 264.5) internal successors, (1587), 6 states have internal predecessors, (1587), 0 states have call successors, (0), 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 16:36:44,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:44,385 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:44,385 INFO L186 Difference]: Start difference. First operand has 277 places, 277 transitions, 563 flow. Second operand 6 states and 1587 transitions. [2022-04-18 16:36:44,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 276 transitions, 661 flow [2022-04-18 16:36:44,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 276 transitions, 657 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:44,389 INFO L242 Difference]: Finished difference. Result has 279 places, 276 transitions, 567 flow [2022-04-18 16:36:44,389 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=567, PETRI_PLACES=279, PETRI_TRANSITIONS=276} [2022-04-18 16:36:44,390 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -11 predicate places. [2022-04-18 16:36:44,390 INFO L478 AbstractCegarLoop]: Abstraction has has 279 places, 276 transitions, 567 flow [2022-04-18 16:36:44,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 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 16:36:44,391 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:44,391 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] [2022-04-18 16:36:44,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:44,391 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:44,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2023739075, now seen corresponding path program 1 times [2022-04-18 16:36:44,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:44,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478333219] [2022-04-18 16:36:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:44,415 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 16:36:44,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:44,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478333219] [2022-04-18 16:36:44,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478333219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:44,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:44,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560154520] [2022-04-18 16:36:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:44,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:44,417 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 319 [2022-04-18 16:36:44,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 276 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 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 16:36:44,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:44,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 319 [2022-04-18 16:36:44,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:44,464 INFO L129 PetriNetUnfolder]: 28/667 cut-off events. [2022-04-18 16:36:44,465 INFO L130 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-04-18 16:36:44,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 667 events. 28/667 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2828 event pairs, 8 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 696. Up to 32 conditions per place. [2022-04-18 16:36:44,468 INFO L132 encePairwiseOnDemand]: 315/319 looper letters, 11 selfloop transitions, 1 changer transitions 0/273 dead transitions. [2022-04-18 16:36:44,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 273 transitions, 585 flow [2022-04-18 16:36:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2022-04-18 16:36:44,473 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9278996865203761 [2022-04-18 16:36:44,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2022-04-18 16:36:44,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2022-04-18 16:36:44,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:44,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2022-04-18 16:36:44,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 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 16:36:44,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,478 INFO L186 Difference]: Start difference. First operand has 279 places, 276 transitions, 567 flow. Second operand 3 states and 888 transitions. [2022-04-18 16:36:44,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 273 transitions, 585 flow [2022-04-18 16:36:44,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 273 transitions, 575 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:44,482 INFO L242 Difference]: Finished difference. Result has 273 places, 273 transitions, 553 flow [2022-04-18 16:36:44,482 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=273, PETRI_TRANSITIONS=273} [2022-04-18 16:36:44,482 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -17 predicate places. [2022-04-18 16:36:44,483 INFO L478 AbstractCegarLoop]: Abstraction has has 273 places, 273 transitions, 553 flow [2022-04-18 16:36:44,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 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 16:36:44,483 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:44,483 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] [2022-04-18 16:36:44,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:44,483 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1182070903, now seen corresponding path program 1 times [2022-04-18 16:36:44,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:44,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695997080] [2022-04-18 16:36:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:44,528 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 16:36:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:44,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695997080] [2022-04-18 16:36:44,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695997080] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:44,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:44,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:44,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156970264] [2022-04-18 16:36:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:44,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:44,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:44,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:44,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:44,532 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-04-18 16:36:44,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 273 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 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 16:36:44,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:44,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-04-18 16:36:44,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:44,581 INFO L129 PetriNetUnfolder]: 18/326 cut-off events. [2022-04-18 16:36:44,581 INFO L130 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-04-18 16:36:44,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 326 events. 18/326 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 748 event pairs, 3 based on Foata normal form. 1/295 useless extension candidates. Maximal degree in co-relation 340. Up to 21 conditions per place. [2022-04-18 16:36:44,584 INFO L132 encePairwiseOnDemand]: 312/319 looper letters, 13 selfloop transitions, 3 changer transitions 0/270 dead transitions. [2022-04-18 16:36:44,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 270 transitions, 580 flow [2022-04-18 16:36:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 884 transitions. [2022-04-18 16:36:44,587 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9237199582027168 [2022-04-18 16:36:44,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 884 transitions. [2022-04-18 16:36:44,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 884 transitions. [2022-04-18 16:36:44,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:44,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 884 transitions. [2022-04-18 16:36:44,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 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 16:36:44,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,591 INFO L186 Difference]: Start difference. First operand has 273 places, 273 transitions, 553 flow. Second operand 3 states and 884 transitions. [2022-04-18 16:36:44,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 270 transitions, 580 flow [2022-04-18 16:36:44,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 270 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:44,594 INFO L242 Difference]: Finished difference. Result has 270 places, 269 transitions, 550 flow [2022-04-18 16:36:44,595 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=270, PETRI_TRANSITIONS=269} [2022-04-18 16:36:44,595 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -20 predicate places. [2022-04-18 16:36:44,595 INFO L478 AbstractCegarLoop]: Abstraction has has 270 places, 269 transitions, 550 flow [2022-04-18 16:36:44,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 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 16:36:44,596 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:44,596 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] [2022-04-18 16:36:44,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:44,597 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1511097150, now seen corresponding path program 1 times [2022-04-18 16:36:44,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:44,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460238753] [2022-04-18 16:36:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:44,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:44,624 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 16:36:44,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:44,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460238753] [2022-04-18 16:36:44,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460238753] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:44,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:44,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256635205] [2022-04-18 16:36:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:44,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:44,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:44,627 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 319 [2022-04-18 16:36:44,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 269 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 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 16:36:44,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:44,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 319 [2022-04-18 16:36:44,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:44,683 INFO L129 PetriNetUnfolder]: 28/376 cut-off events. [2022-04-18 16:36:44,684 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-04-18 16:36:44,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 376 events. 28/376 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1204 event pairs, 11 based on Foata normal form. 1/344 useless extension candidates. Maximal degree in co-relation 410. Up to 38 conditions per place. [2022-04-18 16:36:44,686 INFO L132 encePairwiseOnDemand]: 307/319 looper letters, 18 selfloop transitions, 4 changer transitions 5/263 dead transitions. [2022-04-18 16:36:44,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 263 transitions, 587 flow [2022-04-18 16:36:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 859 transitions. [2022-04-18 16:36:44,689 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8975966562173459 [2022-04-18 16:36:44,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 859 transitions. [2022-04-18 16:36:44,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 859 transitions. [2022-04-18 16:36:44,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:44,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 859 transitions. [2022-04-18 16:36:44,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 16:36:44,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:44,693 INFO L186 Difference]: Start difference. First operand has 270 places, 269 transitions, 550 flow. Second operand 3 states and 859 transitions. [2022-04-18 16:36:44,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 263 transitions, 587 flow [2022-04-18 16:36:44,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:44,696 INFO L242 Difference]: Finished difference. Result has 263 places, 257 transitions, 527 flow [2022-04-18 16:36:44,697 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=263, PETRI_TRANSITIONS=257} [2022-04-18 16:36:44,697 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -27 predicate places. [2022-04-18 16:36:44,697 INFO L478 AbstractCegarLoop]: Abstraction has has 263 places, 257 transitions, 527 flow [2022-04-18 16:36:44,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 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 16:36:44,698 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:44,698 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] [2022-04-18 16:36:44,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:44,699 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash -640111071, now seen corresponding path program 1 times [2022-04-18 16:36:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:44,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594480359] [2022-04-18 16:36:44,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:44,766 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 16:36:44,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:44,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594480359] [2022-04-18 16:36:44,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594480359] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:44,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:44,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305339213] [2022-04-18 16:36:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:44,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:44,770 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 319 [2022-04-18 16:36:44,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 257 transitions, 527 flow. Second operand has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 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 16:36:44,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:44,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 319 [2022-04-18 16:36:44,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:45,254 INFO L129 PetriNetUnfolder]: 1348/4117 cut-off events. [2022-04-18 16:36:45,255 INFO L130 PetriNetUnfolder]: For 7/52 co-relation queries the response was YES. [2022-04-18 16:36:45,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6249 conditions, 4117 events. 1348/4117 cut-off events. For 7/52 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 31006 event pairs, 312 based on Foata normal form. 10/3585 useless extension candidates. Maximal degree in co-relation 6210. Up to 741 conditions per place. [2022-04-18 16:36:45,281 INFO L132 encePairwiseOnDemand]: 314/319 looper letters, 109 selfloop transitions, 4 changer transitions 0/328 dead transitions. [2022-04-18 16:36:45,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 328 transitions, 895 flow [2022-04-18 16:36:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:45,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1680 transitions. [2022-04-18 16:36:45,285 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.877742946708464 [2022-04-18 16:36:45,285 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1680 transitions. [2022-04-18 16:36:45,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1680 transitions. [2022-04-18 16:36:45,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:45,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1680 transitions. [2022-04-18 16:36:45,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 280.0) internal successors, (1680), 6 states have internal predecessors, (1680), 0 states have call successors, (0), 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 16:36:45,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:45,291 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:45,292 INFO L186 Difference]: Start difference. First operand has 263 places, 257 transitions, 527 flow. Second operand 6 states and 1680 transitions. [2022-04-18 16:36:45,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 328 transitions, 895 flow [2022-04-18 16:36:45,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 328 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:45,297 INFO L242 Difference]: Finished difference. Result has 260 places, 256 transitions, 525 flow [2022-04-18 16:36:45,298 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=260, PETRI_TRANSITIONS=256} [2022-04-18 16:36:45,299 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -30 predicate places. [2022-04-18 16:36:45,299 INFO L478 AbstractCegarLoop]: Abstraction has has 260 places, 256 transitions, 525 flow [2022-04-18 16:36:45,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 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 16:36:45,299 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:45,300 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] [2022-04-18 16:36:45,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:45,300 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 767538415, now seen corresponding path program 1 times [2022-04-18 16:36:45,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:45,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582213924] [2022-04-18 16:36:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:45,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:45,330 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 16:36:45,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:45,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582213924] [2022-04-18 16:36:45,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582213924] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:45,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:45,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:45,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539629676] [2022-04-18 16:36:45,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:45,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:45,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:45,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:45,337 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 319 [2022-04-18 16:36:45,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 256 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 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 16:36:45,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:45,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 319 [2022-04-18 16:36:45,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:45,410 INFO L129 PetriNetUnfolder]: 43/679 cut-off events. [2022-04-18 16:36:45,410 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-04-18 16:36:45,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 679 events. 43/679 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2672 event pairs, 4 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 710. Up to 50 conditions per place. [2022-04-18 16:36:45,416 INFO L132 encePairwiseOnDemand]: 314/319 looper letters, 13 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2022-04-18 16:36:45,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 257 transitions, 559 flow [2022-04-18 16:36:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2022-04-18 16:36:45,418 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2022-04-18 16:36:45,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2022-04-18 16:36:45,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2022-04-18 16:36:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:45,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2022-04-18 16:36:45,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 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 16:36:45,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:45,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:45,421 INFO L186 Difference]: Start difference. First operand has 260 places, 256 transitions, 525 flow. Second operand 3 states and 891 transitions. [2022-04-18 16:36:45,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 257 transitions, 559 flow [2022-04-18 16:36:45,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 257 transitions, 552 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:45,426 INFO L242 Difference]: Finished difference. Result has 256 places, 255 transitions, 526 flow [2022-04-18 16:36:45,426 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=256, PETRI_TRANSITIONS=255} [2022-04-18 16:36:45,427 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -34 predicate places. [2022-04-18 16:36:45,428 INFO L478 AbstractCegarLoop]: Abstraction has has 256 places, 255 transitions, 526 flow [2022-04-18 16:36:45,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 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 16:36:45,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:45,428 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] [2022-04-18 16:36:45,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:45,429 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:45,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:45,429 INFO L85 PathProgramCache]: Analyzing trace with hash 309449621, now seen corresponding path program 1 times [2022-04-18 16:36:45,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:45,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771235188] [2022-04-18 16:36:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:45,480 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 16:36:45,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:45,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771235188] [2022-04-18 16:36:45,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771235188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:45,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:45,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248629725] [2022-04-18 16:36:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:45,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:45,482 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 319 [2022-04-18 16:36:45,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 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 16:36:45,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:45,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 319 [2022-04-18 16:36:45,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:45,583 INFO L129 PetriNetUnfolder]: 57/1028 cut-off events. [2022-04-18 16:36:45,583 INFO L130 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-04-18 16:36:45,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 1028 events. 57/1028 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4840 event pairs, 11 based on Foata normal form. 1/935 useless extension candidates. Maximal degree in co-relation 1134. Up to 42 conditions per place. [2022-04-18 16:36:45,590 INFO L132 encePairwiseOnDemand]: 313/319 looper letters, 29 selfloop transitions, 6 changer transitions 0/272 dead transitions. [2022-04-18 16:36:45,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 272 transitions, 634 flow [2022-04-18 16:36:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1471 transitions. [2022-04-18 16:36:45,592 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9222570532915361 [2022-04-18 16:36:45,592 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1471 transitions. [2022-04-18 16:36:45,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1471 transitions. [2022-04-18 16:36:45,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:45,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1471 transitions. [2022-04-18 16:36:45,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.2) internal successors, (1471), 5 states have internal predecessors, (1471), 0 states have call successors, (0), 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 16:36:45,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 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 16:36:45,597 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 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 16:36:45,597 INFO L186 Difference]: Start difference. First operand has 256 places, 255 transitions, 526 flow. Second operand 5 states and 1471 transitions. [2022-04-18 16:36:45,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 272 transitions, 634 flow [2022-04-18 16:36:45,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 272 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:45,630 INFO L242 Difference]: Finished difference. Result has 263 places, 259 transitions, 564 flow [2022-04-18 16:36:45,631 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=564, PETRI_PLACES=263, PETRI_TRANSITIONS=259} [2022-04-18 16:36:45,631 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -27 predicate places. [2022-04-18 16:36:45,631 INFO L478 AbstractCegarLoop]: Abstraction has has 263 places, 259 transitions, 564 flow [2022-04-18 16:36:45,637 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 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 16:36:45,637 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:45,637 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] [2022-04-18 16:36:45,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:45,637 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:45,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1010193150, now seen corresponding path program 1 times [2022-04-18 16:36:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:45,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346390478] [2022-04-18 16:36:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:45,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:45,735 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 16:36:45,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:45,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346390478] [2022-04-18 16:36:45,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346390478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:45,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:45,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:45,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937916397] [2022-04-18 16:36:45,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:45,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:45,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:45,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:45,739 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 319 [2022-04-18 16:36:45,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 259 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 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 16:36:45,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:45,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 319 [2022-04-18 16:36:45,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:46,925 INFO L129 PetriNetUnfolder]: 2326/11193 cut-off events. [2022-04-18 16:36:46,925 INFO L130 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-04-18 16:36:46,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15172 conditions, 11193 events. 2326/11193 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 112992 event pairs, 1848 based on Foata normal form. 0/9991 useless extension candidates. Maximal degree in co-relation 15128. Up to 3099 conditions per place. [2022-04-18 16:36:46,981 INFO L132 encePairwiseOnDemand]: 314/319 looper letters, 84 selfloop transitions, 4 changer transitions 0/306 dead transitions. [2022-04-18 16:36:46,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 306 transitions, 834 flow [2022-04-18 16:36:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1655 transitions. [2022-04-18 16:36:46,984 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8646812957157785 [2022-04-18 16:36:46,984 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1655 transitions. [2022-04-18 16:36:46,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1655 transitions. [2022-04-18 16:36:46,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:46,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1655 transitions. [2022-04-18 16:36:46,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.8333333333333) internal successors, (1655), 6 states have internal predecessors, (1655), 0 states have call successors, (0), 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 16:36:46,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:46,988 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:46,988 INFO L186 Difference]: Start difference. First operand has 263 places, 259 transitions, 564 flow. Second operand 6 states and 1655 transitions. [2022-04-18 16:36:46,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 306 transitions, 834 flow [2022-04-18 16:36:46,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 306 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:46,993 INFO L242 Difference]: Finished difference. Result has 267 places, 258 transitions, 570 flow [2022-04-18 16:36:46,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=267, PETRI_TRANSITIONS=258} [2022-04-18 16:36:46,994 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-04-18 16:36:46,994 INFO L478 AbstractCegarLoop]: Abstraction has has 267 places, 258 transitions, 570 flow [2022-04-18 16:36:46,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 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 16:36:46,995 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:46,995 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] [2022-04-18 16:36:46,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:36:46,995 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash 885750741, now seen corresponding path program 1 times [2022-04-18 16:36:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:46,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416306814] [2022-04-18 16:36:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:47,078 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 16:36:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:47,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416306814] [2022-04-18 16:36:47,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416306814] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:47,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:47,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987575752] [2022-04-18 16:36:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:47,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:47,081 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 319 [2022-04-18 16:36:47,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 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 16:36:47,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:47,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 319 [2022-04-18 16:36:47,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,281 INFO L129 PetriNetUnfolder]: 3486/10634 cut-off events. [2022-04-18 16:36:48,281 INFO L130 PetriNetUnfolder]: For 1138/1138 co-relation queries the response was YES. [2022-04-18 16:36:48,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17266 conditions, 10634 events. 3486/10634 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 95140 event pairs, 1417 based on Foata normal form. 0/9612 useless extension candidates. Maximal degree in co-relation 17221. Up to 2642 conditions per place. [2022-04-18 16:36:48,342 INFO L132 encePairwiseOnDemand]: 313/319 looper letters, 121 selfloop transitions, 6 changer transitions 0/337 dead transitions. [2022-04-18 16:36:48,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 337 transitions, 990 flow [2022-04-18 16:36:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1667 transitions. [2022-04-18 16:36:48,345 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8709508881922675 [2022-04-18 16:36:48,345 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1667 transitions. [2022-04-18 16:36:48,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1667 transitions. [2022-04-18 16:36:48,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1667 transitions. [2022-04-18 16:36:48,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 0 states have call successors, (0), 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 16:36:48,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:48,350 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:48,350 INFO L186 Difference]: Start difference. First operand has 267 places, 258 transitions, 570 flow. Second operand 6 states and 1667 transitions. [2022-04-18 16:36:48,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 337 transitions, 990 flow [2022-04-18 16:36:48,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 337 transitions, 983 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:48,355 INFO L242 Difference]: Finished difference. Result has 267 places, 257 transitions, 573 flow [2022-04-18 16:36:48,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-04-18 16:36:48,356 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-04-18 16:36:48,356 INFO L478 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 573 flow [2022-04-18 16:36:48,356 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 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 16:36:48,356 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,356 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] [2022-04-18 16:36:48,357 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:36:48,357 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1205791438, now seen corresponding path program 1 times [2022-04-18 16:36:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019408819] [2022-04-18 16:36:48,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,392 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 16:36:48,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019408819] [2022-04-18 16:36:48,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019408819] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:48,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563505414] [2022-04-18 16:36:48,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:48,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:48,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:48,395 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 319 [2022-04-18 16:36:48,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 573 flow. Second operand has 4 states, 4 states have (on average 280.25) internal successors, (1121), 4 states have internal predecessors, (1121), 0 states have call successors, (0), 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 16:36:48,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 319 [2022-04-18 16:36:48,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,569 INFO L129 PetriNetUnfolder]: 90/814 cut-off events. [2022-04-18 16:36:48,569 INFO L130 PetriNetUnfolder]: For 78/79 co-relation queries the response was YES. [2022-04-18 16:36:48,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 814 events. 90/814 cut-off events. For 78/79 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4814 event pairs, 22 based on Foata normal form. 0/749 useless extension candidates. Maximal degree in co-relation 1076. Up to 163 conditions per place. [2022-04-18 16:36:48,575 INFO L132 encePairwiseOnDemand]: 313/319 looper letters, 38 selfloop transitions, 6 changer transitions 0/273 dead transitions. [2022-04-18 16:36:48,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 273 transitions, 696 flow [2022-04-18 16:36:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:48,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1430 transitions. [2022-04-18 16:36:48,578 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2022-04-18 16:36:48,578 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1430 transitions. [2022-04-18 16:36:48,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1430 transitions. [2022-04-18 16:36:48,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1430 transitions. [2022-04-18 16:36:48,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 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 16:36:48,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 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 16:36:48,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 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 16:36:48,583 INFO L186 Difference]: Start difference. First operand has 267 places, 257 transitions, 573 flow. Second operand 5 states and 1430 transitions. [2022-04-18 16:36:48,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 273 transitions, 696 flow [2022-04-18 16:36:48,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 273 transitions, 684 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:48,586 INFO L242 Difference]: Finished difference. Result has 269 places, 261 transitions, 599 flow [2022-04-18 16:36:48,587 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=599, PETRI_PLACES=269, PETRI_TRANSITIONS=261} [2022-04-18 16:36:48,588 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -21 predicate places. [2022-04-18 16:36:48,588 INFO L478 AbstractCegarLoop]: Abstraction has has 269 places, 261 transitions, 599 flow [2022-04-18 16:36:48,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 280.25) internal successors, (1121), 4 states have internal predecessors, (1121), 0 states have call successors, (0), 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 16:36:48,588 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,588 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] [2022-04-18 16:36:48,588 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:36:48,589 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:48,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1447108392, now seen corresponding path program 1 times [2022-04-18 16:36:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394419874] [2022-04-18 16:36:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,618 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 16:36:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394419874] [2022-04-18 16:36:48,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394419874] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269191078] [2022-04-18 16:36:48,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,621 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 319 [2022-04-18 16:36:48,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 261 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:48,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 319 [2022-04-18 16:36:48,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,676 INFO L129 PetriNetUnfolder]: 34/610 cut-off events. [2022-04-18 16:36:48,676 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-04-18 16:36:48,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 610 events. 34/610 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1772 event pairs, 16 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 723. Up to 47 conditions per place. [2022-04-18 16:36:48,681 INFO L132 encePairwiseOnDemand]: 316/319 looper letters, 12 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2022-04-18 16:36:48,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 261 transitions, 628 flow [2022-04-18 16:36:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2022-04-18 16:36:48,684 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9122257053291536 [2022-04-18 16:36:48,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2022-04-18 16:36:48,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2022-04-18 16:36:48,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2022-04-18 16:36:48,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 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 16:36:48,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:48,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:48,687 INFO L186 Difference]: Start difference. First operand has 269 places, 261 transitions, 599 flow. Second operand 3 states and 873 transitions. [2022-04-18 16:36:48,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 261 transitions, 628 flow [2022-04-18 16:36:48,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 261 transitions, 628 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:48,691 INFO L242 Difference]: Finished difference. Result has 270 places, 260 transitions, 601 flow [2022-04-18 16:36:48,692 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=270, PETRI_TRANSITIONS=260} [2022-04-18 16:36:48,692 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -20 predicate places. [2022-04-18 16:36:48,692 INFO L478 AbstractCegarLoop]: Abstraction has has 270 places, 260 transitions, 601 flow [2022-04-18 16:36:48,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 16:36:48,693 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,693 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] [2022-04-18 16:36:48,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:36:48,693 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1099430130, now seen corresponding path program 1 times [2022-04-18 16:36:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615798210] [2022-04-18 16:36:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,771 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 16:36:48,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615798210] [2022-04-18 16:36:48,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615798210] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:48,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396950148] [2022-04-18 16:36:48,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:48,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:48,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:48,776 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 319 [2022-04-18 16:36:48,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 260 transitions, 601 flow. Second operand has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 0 states have call successors, (0), 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 16:36:48,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 319 [2022-04-18 16:36:48,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:50,281 INFO L129 PetriNetUnfolder]: 4128/13823 cut-off events. [2022-04-18 16:36:50,281 INFO L130 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2022-04-18 16:36:50,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22254 conditions, 13823 events. 4128/13823 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 130705 event pairs, 1472 based on Foata normal form. 0/13028 useless extension candidates. Maximal degree in co-relation 22204. Up to 2712 conditions per place. [2022-04-18 16:36:50,348 INFO L132 encePairwiseOnDemand]: 307/319 looper letters, 105 selfloop transitions, 11 changer transitions 0/326 dead transitions. [2022-04-18 16:36:50,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 326 transitions, 977 flow [2022-04-18 16:36:50,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1639 transitions. [2022-04-18 16:36:50,351 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8563218390804598 [2022-04-18 16:36:50,351 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1639 transitions. [2022-04-18 16:36:50,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1639 transitions. [2022-04-18 16:36:50,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:50,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1639 transitions. [2022-04-18 16:36:50,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 273.1666666666667) internal successors, (1639), 6 states have internal predecessors, (1639), 0 states have call successors, (0), 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 16:36:50,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:50,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 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 16:36:50,356 INFO L186 Difference]: Start difference. First operand has 270 places, 260 transitions, 601 flow. Second operand 6 states and 1639 transitions. [2022-04-18 16:36:50,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 326 transitions, 977 flow [2022-04-18 16:36:50,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 326 transitions, 973 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:50,363 INFO L242 Difference]: Finished difference. Result has 271 places, 258 transitions, 615 flow [2022-04-18 16:36:50,363 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=271, PETRI_TRANSITIONS=258} [2022-04-18 16:36:50,364 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -19 predicate places. [2022-04-18 16:36:50,364 INFO L478 AbstractCegarLoop]: Abstraction has has 271 places, 258 transitions, 615 flow [2022-04-18 16:36:50,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 0 states have call successors, (0), 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 16:36:50,364 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:50,364 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] [2022-04-18 16:36:50,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:36:50,365 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 661292305, now seen corresponding path program 1 times [2022-04-18 16:36:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:50,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425370271] [2022-04-18 16:36:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:50,392 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 16:36:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:50,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425370271] [2022-04-18 16:36:50,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425370271] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:50,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:50,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:50,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811396956] [2022-04-18 16:36:50,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:50,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:50,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:50,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:50,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:50,394 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 319 [2022-04-18 16:36:50,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 258 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 16:36:50,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:50,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 319 [2022-04-18 16:36:50,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:50,485 INFO L129 PetriNetUnfolder]: 72/779 cut-off events. [2022-04-18 16:36:50,485 INFO L130 PetriNetUnfolder]: For 89/90 co-relation queries the response was YES. [2022-04-18 16:36:50,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 779 events. 72/779 cut-off events. For 89/90 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4200 event pairs, 48 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 1085. Up to 158 conditions per place. [2022-04-18 16:36:50,490 INFO L132 encePairwiseOnDemand]: 316/319 looper letters, 21 selfloop transitions, 2 changer transitions 0/258 dead transitions. [2022-04-18 16:36:50,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 258 transitions, 662 flow [2022-04-18 16:36:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 846 transitions. [2022-04-18 16:36:50,492 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8840125391849529 [2022-04-18 16:36:50,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 846 transitions. [2022-04-18 16:36:50,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 846 transitions. [2022-04-18 16:36:50,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:50,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 846 transitions. [2022-04-18 16:36:50,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 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 16:36:50,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:50,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:50,495 INFO L186 Difference]: Start difference. First operand has 271 places, 258 transitions, 615 flow. Second operand 3 states and 846 transitions. [2022-04-18 16:36:50,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 258 transitions, 662 flow [2022-04-18 16:36:50,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 258 transitions, 640 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:50,499 INFO L242 Difference]: Finished difference. Result has 267 places, 257 transitions, 595 flow [2022-04-18 16:36:50,499 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-04-18 16:36:50,501 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-04-18 16:36:50,501 INFO L478 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 595 flow [2022-04-18 16:36:50,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 16:36:50,501 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:50,501 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] [2022-04-18 16:36:50,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:36:50,501 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-04-18 16:36:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1991640856, now seen corresponding path program 1 times [2022-04-18 16:36:50,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:50,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826950709] [2022-04-18 16:36:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:50,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:50,533 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 16:36:50,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:50,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826950709] [2022-04-18 16:36:50,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826950709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:50,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:50,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:50,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126856705] [2022-04-18 16:36:50,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:50,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:50,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:50,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:50,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:50,535 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 319 [2022-04-18 16:36:50,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 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 16:36:50,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:50,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 319 [2022-04-18 16:36:50,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:50,621 INFO L129 PetriNetUnfolder]: 70/772 cut-off events. [2022-04-18 16:36:50,621 INFO L130 PetriNetUnfolder]: For 77/78 co-relation queries the response was YES. [2022-04-18 16:36:50,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 772 events. 70/772 cut-off events. For 77/78 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4048 event pairs, 46 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 1006. Up to 151 conditions per place. [2022-04-18 16:36:50,625 INFO L132 encePairwiseOnDemand]: 316/319 looper letters, 0 selfloop transitions, 0 changer transitions 257/257 dead transitions. [2022-04-18 16:36:50,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 640 flow [2022-04-18 16:36:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 845 transitions. [2022-04-18 16:36:50,627 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8829676071055381 [2022-04-18 16:36:50,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 845 transitions. [2022-04-18 16:36:50,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 845 transitions. [2022-04-18 16:36:50,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:50,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 845 transitions. [2022-04-18 16:36:50,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 0 states have call successors, (0), 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 16:36:50,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:50,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 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 16:36:50,631 INFO L186 Difference]: Start difference. First operand has 267 places, 257 transitions, 595 flow. Second operand 3 states and 845 transitions. [2022-04-18 16:36:50,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 640 flow [2022-04-18 16:36:50,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 257 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:50,635 INFO L242 Difference]: Finished difference. Result has 266 places, 0 transitions, 0 flow [2022-04-18 16:36:50,635 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=266, PETRI_TRANSITIONS=0} [2022-04-18 16:36:50,635 INFO L335 CegarLoopForPetriNet]: 290 programPoint places, -24 predicate places. [2022-04-18 16:36:50,635 INFO L478 AbstractCegarLoop]: Abstraction has has 266 places, 0 transitions, 0 flow [2022-04-18 16:36:50,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 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 16:36:50,638 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2022-04-18 16:36:50,638 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2022-04-18 16:36:50,638 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2022-04-18 16:36:50,639 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2022-04-18 16:36:50,640 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2022-04-18 16:36:50,641 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2022-04-18 16:36:50,642 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2022-04-18 16:36:50,643 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2022-04-18 16:36:50,643 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2022-04-18 16:36:50,644 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2022-04-18 16:36:50,645 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2022-04-18 16:36:50,646 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2022-04-18 16:36:50,647 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2022-04-18 16:36:50,647 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2022-04-18 16:36:50,647 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2022-04-18 16:36:50,647 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2022-04-18 16:36:50,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:36:50,651 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:50,655 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:36:50,655 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:36:50,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:36:50 BasicIcfg [2022-04-18 16:36:50,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:36:50,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:36:50,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:36:50,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:36:50,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:41" (3/4) ... [2022-04-18 16:36:50,660 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:36:50,665 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:36:50,665 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:36:50,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-04-18 16:36:50,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:36:50,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:36:50,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:36:50,708 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:36:50,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:36:50,709 INFO L158 Benchmark]: Toolchain (without parser) took 9560.96ms. Allocated memory was 109.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 75.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 670.9MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,709 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:36:50,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.48ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 84.0MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.15ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 80.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,710 INFO L158 Benchmark]: Boogie Preprocessor took 62.15ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,710 INFO L158 Benchmark]: RCFGBuilder took 495.92ms. Allocated memory is still 109.1MB. Free memory was 78.8MB in the beginning and 57.2MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,710 INFO L158 Benchmark]: TraceAbstraction took 8679.51ms. Allocated memory was 109.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 56.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 650.5MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,711 INFO L158 Benchmark]: Witness Printer took 49.95ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:50,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.48ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 84.0MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.15ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 80.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.15ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.92ms. Allocated memory is still 109.1MB. Free memory was 78.8MB in the beginning and 57.2MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8679.51ms. Allocated memory was 109.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 56.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 650.5MB. Max. memory is 16.1GB. * Witness Printer took 49.95ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 3.1MB). 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: 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, 450 locations, 59 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: 8.6s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 254 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1229 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 254 mSolverCounterUnsat, 320 mSDtfsCounter, 1229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=16, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1668 NumberOfCodeBlocks, 1668 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1650 ConstructedInterpolants, 0 QuantifiedInterpolants, 2517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:36:50,752 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