./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.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/bench-exp2x6.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 19006bb1633253053764e43b8bfff1653449498b05ea53714e3311a41e35d730 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:31:42,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:31:42,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:31:42,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:31:42,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:31:42,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:31:42,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:31:42,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:31:42,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:31:42,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:31:42,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:31:42,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:31:42,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:31:42,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:31:42,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:31:42,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:31:42,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:31:42,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:31:42,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:31:42,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:31:42,269 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:31:42,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:31:42,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:31:42,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:31:42,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:31:42,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:31:42,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:31:42,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:31:42,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:31:42,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:31:42,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:31:42,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:31:42,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:31:42,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:31:42,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:31:42,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:31:42,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:31:42,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:31:42,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:31:42,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:31:42,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:31:42,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:31:42,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:31:42,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:31:42,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:31:42,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:31:42,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:31:42,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:31:42,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:31:42,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:31:42,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:31:42,300 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:31:42,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:31:42,301 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:31:42,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:31:42,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:31:42,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:31:42,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:31:42,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:31:42,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:31:42,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:31:42,303 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:31:42,303 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:31:42,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:31:42,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:31:42,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:31:42,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:31:42,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:31:42,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:31:42,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:31:42,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:31:42,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:31:42,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:31:42,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19006bb1633253053764e43b8bfff1653449498b05ea53714e3311a41e35d730 [2022-04-18 16:31:42,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:31:42,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:31:42,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:31:42,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:31:42,538 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:31:42,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-04-18 16:31:42,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e4f816b/1b5d4d34b0f64999be0aad2ae2242f51/FLAGddf0a4883 [2022-04-18 16:31:42,967 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:31:42,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-04-18 16:31:42,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e4f816b/1b5d4d34b0f64999be0aad2ae2242f51/FLAGddf0a4883 [2022-04-18 16:31:43,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e4f816b/1b5d4d34b0f64999be0aad2ae2242f51 [2022-04-18 16:31:43,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:31:43,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:31:43,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:31:43,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:31:43,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:31:43,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5a5393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43, skipping insertion in model container [2022-04-18 16:31:43,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:31:43,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:31:43,566 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/bench-exp2x6.wvr.c[2453,2466] [2022-04-18 16:31:43,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:31:43,573 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:31:43,602 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/bench-exp2x6.wvr.c[2453,2466] [2022-04-18 16:31:43,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:31:43,612 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:31:43,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43 WrapperNode [2022-04-18 16:31:43,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:31:43,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:31:43,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:31:43,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:31:43,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,647 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-04-18 16:31:43,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:31:43,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:31:43,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:31:43,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:31:43,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:31:43,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:31:43,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:31:43,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:31:43,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (1/1) ... [2022-04-18 16:31:43,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:31:43,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:31:43,716 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 16:31:43,727 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 16:31:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:31:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:31:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:31:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:31:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:31:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:31:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:31:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:31:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:31:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:31:43,752 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 16:31:43,863 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:31:43,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:31:44,254 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:31:44,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:31:44,269 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:31:44,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:44 BoogieIcfgContainer [2022-04-18 16:31:44,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:31:44,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:31:44,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:31:44,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:31:44,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:31:43" (1/3) ... [2022-04-18 16:31:44,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0b27a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:31:44, skipping insertion in model container [2022-04-18 16:31:44,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:43" (2/3) ... [2022-04-18 16:31:44,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0b27a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:31:44, skipping insertion in model container [2022-04-18 16:31:44,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:44" (3/3) ... [2022-04-18 16:31:44,280 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2022-04-18 16:31:44,284 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:31:44,284 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:31:44,284 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-04-18 16:31:44,284 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:31:44,366 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:31:44,406 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:31:44,412 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 16:31:44,412 INFO L341 AbstractCegarLoop]: Starting to check reachability of 135 error locations. [2022-04-18 16:31:44,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 435 transitions, 902 flow [2022-04-18 16:31:44,578 INFO L129 PetriNetUnfolder]: 14/431 cut-off events. [2022-04-18 16:31:44,579 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:31:44,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 431 events. 14/431 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1153 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 301. Up to 2 conditions per place. [2022-04-18 16:31:44,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 434 places, 435 transitions, 902 flow [2022-04-18 16:31:44,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 407 places, 406 transitions, 836 flow [2022-04-18 16:31:44,605 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2022-04-18 16:31:44,606 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:31:44,606 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:44,606 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] [2022-04-18 16:31:44,607 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1093460191, now seen corresponding path program 1 times [2022-04-18 16:31:44,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:44,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545242151] [2022-04-18 16:31:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:44,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:44,776 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 16:31:44,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:44,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545242151] [2022-04-18 16:31:44,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545242151] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:44,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:44,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:44,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32577700] [2022-04-18 16:31:44,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:44,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:44,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:44,813 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 435 [2022-04-18 16:31:44,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 406 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 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 16:31:44,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:44,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 435 [2022-04-18 16:31:44,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,090 INFO L129 PetriNetUnfolder]: 127/691 cut-off events. [2022-04-18 16:31:45,090 INFO L130 PetriNetUnfolder]: For 133/140 co-relation queries the response was YES. [2022-04-18 16:31:45,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 691 events. 127/691 cut-off events. For 133/140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3967 event pairs, 117 based on Foata normal form. 247/803 useless extension candidates. Maximal degree in co-relation 1066. Up to 294 conditions per place. [2022-04-18 16:31:45,112 INFO L132 encePairwiseOnDemand]: 427/435 looper letters, 59 selfloop transitions, 2 changer transitions 1/400 dead transitions. [2022-04-18 16:31:45,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 400 transitions, 946 flow [2022-04-18 16:31:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:45,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1165 transitions. [2022-04-18 16:31:45,134 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.89272030651341 [2022-04-18 16:31:45,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1165 transitions. [2022-04-18 16:31:45,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1165 transitions. [2022-04-18 16:31:45,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1165 transitions. [2022-04-18 16:31:45,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 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 16:31:45,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,155 INFO L186 Difference]: Start difference. First operand has 407 places, 406 transitions, 836 flow. Second operand 3 states and 1165 transitions. [2022-04-18 16:31:45,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 400 transitions, 946 flow [2022-04-18 16:31:45,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 930 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:31:45,171 INFO L242 Difference]: Finished difference. Result has 400 places, 399 transitions, 810 flow [2022-04-18 16:31:45,173 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=400, PETRI_TRANSITIONS=399} [2022-04-18 16:31:45,176 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -7 predicate places. [2022-04-18 16:31:45,176 INFO L478 AbstractCegarLoop]: Abstraction has has 400 places, 399 transitions, 810 flow [2022-04-18 16:31:45,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 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 16:31:45,177 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,177 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] [2022-04-18 16:31:45,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:31:45,178 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1895617542, now seen corresponding path program 1 times [2022-04-18 16:31:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445262900] [2022-04-18 16:31:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,236 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 16:31:45,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445262900] [2022-04-18 16:31:45,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445262900] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:45,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332025007] [2022-04-18 16:31:45,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:45,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:45,243 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 435 [2022-04-18 16:31:45,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 399 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:45,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 435 [2022-04-18 16:31:45,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,461 INFO L129 PetriNetUnfolder]: 127/689 cut-off events. [2022-04-18 16:31:45,461 INFO L130 PetriNetUnfolder]: For 43/49 co-relation queries the response was YES. [2022-04-18 16:31:45,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 689 events. 127/689 cut-off events. For 43/49 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4212 event pairs, 117 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 1035. Up to 291 conditions per place. [2022-04-18 16:31:45,479 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 56 selfloop transitions, 2 changer transitions 0/398 dead transitions. [2022-04-18 16:31:45,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 398 transitions, 924 flow [2022-04-18 16:31:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1166 transitions. [2022-04-18 16:31:45,481 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8934865900383142 [2022-04-18 16:31:45,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1166 transitions. [2022-04-18 16:31:45,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1166 transitions. [2022-04-18 16:31:45,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1166 transitions. [2022-04-18 16:31:45,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 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 16:31:45,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,487 INFO L186 Difference]: Start difference. First operand has 400 places, 399 transitions, 810 flow. Second operand 3 states and 1166 transitions. [2022-04-18 16:31:45,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 398 transitions, 924 flow [2022-04-18 16:31:45,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 398 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:45,492 INFO L242 Difference]: Finished difference. Result has 398 places, 398 transitions, 808 flow [2022-04-18 16:31:45,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=808, PETRI_PLACES=398, PETRI_TRANSITIONS=398} [2022-04-18 16:31:45,493 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -9 predicate places. [2022-04-18 16:31:45,493 INFO L478 AbstractCegarLoop]: Abstraction has has 398 places, 398 transitions, 808 flow [2022-04-18 16:31:45,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:45,494 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,494 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] [2022-04-18 16:31:45,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:31:45,495 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash 455979650, now seen corresponding path program 1 times [2022-04-18 16:31:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180563744] [2022-04-18 16:31:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,533 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 16:31:45,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180563744] [2022-04-18 16:31:45,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180563744] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164727731] [2022-04-18 16:31:45,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:45,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:45,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:45,539 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 435 [2022-04-18 16:31:45,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 398 transitions, 808 flow. Second operand has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 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 16:31:45,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 435 [2022-04-18 16:31:45,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,763 INFO L129 PetriNetUnfolder]: 127/688 cut-off events. [2022-04-18 16:31:45,763 INFO L130 PetriNetUnfolder]: For 82/88 co-relation queries the response was YES. [2022-04-18 16:31:45,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 688 events. 127/688 cut-off events. For 82/88 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4317 event pairs, 117 based on Foata normal form. 0/549 useless extension candidates. Maximal degree in co-relation 992. Up to 294 conditions per place. [2022-04-18 16:31:45,784 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 59 selfloop transitions, 2 changer transitions 0/397 dead transitions. [2022-04-18 16:31:45,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 397 transitions, 928 flow [2022-04-18 16:31:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2022-04-18 16:31:45,786 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-04-18 16:31:45,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2022-04-18 16:31:45,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2022-04-18 16:31:45,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2022-04-18 16:31:45,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 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 16:31:45,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:45,792 INFO L186 Difference]: Start difference. First operand has 398 places, 398 transitions, 808 flow. Second operand 3 states and 1160 transitions. [2022-04-18 16:31:45,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 397 transitions, 928 flow [2022-04-18 16:31:45,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 397 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:45,797 INFO L242 Difference]: Finished difference. Result has 397 places, 397 transitions, 806 flow [2022-04-18 16:31:45,798 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=397, PETRI_TRANSITIONS=397} [2022-04-18 16:31:45,799 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -10 predicate places. [2022-04-18 16:31:45,799 INFO L478 AbstractCegarLoop]: Abstraction has has 397 places, 397 transitions, 806 flow [2022-04-18 16:31:45,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 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 16:31:45,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,800 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] [2022-04-18 16:31:45,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:31:45,800 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1419194383, now seen corresponding path program 1 times [2022-04-18 16:31:45,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90785282] [2022-04-18 16:31:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,827 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 16:31:45,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90785282] [2022-04-18 16:31:45,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90785282] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789793586] [2022-04-18 16:31:45,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:45,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:45,830 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 435 [2022-04-18 16:31:45,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 397 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:45,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 435 [2022-04-18 16:31:45,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:46,034 INFO L129 PetriNetUnfolder]: 127/687 cut-off events. [2022-04-18 16:31:46,035 INFO L130 PetriNetUnfolder]: For 121/127 co-relation queries the response was YES. [2022-04-18 16:31:46,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 687 events. 127/687 cut-off events. For 121/127 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4418 event pairs, 117 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 942. Up to 290 conditions per place. [2022-04-18 16:31:46,049 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 55 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2022-04-18 16:31:46,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 396 transitions, 918 flow [2022-04-18 16:31:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1165 transitions. [2022-04-18 16:31:46,052 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.89272030651341 [2022-04-18 16:31:46,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1165 transitions. [2022-04-18 16:31:46,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1165 transitions. [2022-04-18 16:31:46,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:46,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1165 transitions. [2022-04-18 16:31:46,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 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 16:31:46,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:46,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:46,059 INFO L186 Difference]: Start difference. First operand has 397 places, 397 transitions, 806 flow. Second operand 3 states and 1165 transitions. [2022-04-18 16:31:46,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 396 transitions, 918 flow [2022-04-18 16:31:46,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 396 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:46,086 INFO L242 Difference]: Finished difference. Result has 396 places, 396 transitions, 804 flow [2022-04-18 16:31:46,087 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=396, PETRI_TRANSITIONS=396} [2022-04-18 16:31:46,088 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -11 predicate places. [2022-04-18 16:31:46,088 INFO L478 AbstractCegarLoop]: Abstraction has has 396 places, 396 transitions, 804 flow [2022-04-18 16:31:46,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:46,089 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:46,089 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:46,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:31:46,089 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash -356961118, now seen corresponding path program 1 times [2022-04-18 16:31:46,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:46,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144228037] [2022-04-18 16:31:46,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:46,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:46,138 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 16:31:46,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:46,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144228037] [2022-04-18 16:31:46,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144228037] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:46,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:46,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:46,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995817264] [2022-04-18 16:31:46,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:46,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:46,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:46,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:46,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:46,140 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 435 [2022-04-18 16:31:46,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 396 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 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 16:31:46,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:46,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 435 [2022-04-18 16:31:46,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:47,421 INFO L129 PetriNetUnfolder]: 1030/10415 cut-off events. [2022-04-18 16:31:47,421 INFO L130 PetriNetUnfolder]: For 85/193 co-relation queries the response was YES. [2022-04-18 16:31:47,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11790 conditions, 10415 events. 1030/10415 cut-off events. For 85/193 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 132217 event pairs, 855 based on Foata normal form. 0/7754 useless extension candidates. Maximal degree in co-relation 11739. Up to 1284 conditions per place. [2022-04-18 16:31:47,563 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 23 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2022-04-18 16:31:47,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 395 transitions, 852 flow [2022-04-18 16:31:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1232 transitions. [2022-04-18 16:31:47,566 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9440613026819923 [2022-04-18 16:31:47,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1232 transitions. [2022-04-18 16:31:47,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1232 transitions. [2022-04-18 16:31:47,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:47,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1232 transitions. [2022-04-18 16:31:47,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 410.6666666666667) internal successors, (1232), 3 states have internal predecessors, (1232), 0 states have call successors, (0), 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 16:31:47,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:47,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:47,572 INFO L186 Difference]: Start difference. First operand has 396 places, 396 transitions, 804 flow. Second operand 3 states and 1232 transitions. [2022-04-18 16:31:47,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 395 transitions, 852 flow [2022-04-18 16:31:47,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 395 transitions, 848 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:47,577 INFO L242 Difference]: Finished difference. Result has 395 places, 395 transitions, 802 flow [2022-04-18 16:31:47,578 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=395, PETRI_TRANSITIONS=395} [2022-04-18 16:31:47,579 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -12 predicate places. [2022-04-18 16:31:47,579 INFO L478 AbstractCegarLoop]: Abstraction has has 395 places, 395 transitions, 802 flow [2022-04-18 16:31:47,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 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 16:31:47,580 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:47,580 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:47,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:31:47,580 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:47,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:47,581 INFO L85 PathProgramCache]: Analyzing trace with hash -851483623, now seen corresponding path program 1 times [2022-04-18 16:31:47,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:47,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360666575] [2022-04-18 16:31:47,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:47,612 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 16:31:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360666575] [2022-04-18 16:31:47,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360666575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:47,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:47,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259365139] [2022-04-18 16:31:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:47,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:47,615 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 435 [2022-04-18 16:31:47,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 395 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:47,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:47,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 435 [2022-04-18 16:31:47,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:47,758 INFO L129 PetriNetUnfolder]: 100/624 cut-off events. [2022-04-18 16:31:47,758 INFO L130 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-04-18 16:31:47,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 624 events. 100/624 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3390 event pairs, 54 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 895. Up to 144 conditions per place. [2022-04-18 16:31:47,773 INFO L132 encePairwiseOnDemand]: 414/435 looper letters, 41 selfloop transitions, 9 changer transitions 0/387 dead transitions. [2022-04-18 16:31:47,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 387 transitions, 889 flow [2022-04-18 16:31:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2022-04-18 16:31:47,776 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8957854406130268 [2022-04-18 16:31:47,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2022-04-18 16:31:47,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2022-04-18 16:31:47,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:47,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2022-04-18 16:31:47,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 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 16:31:47,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:47,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:47,781 INFO L186 Difference]: Start difference. First operand has 395 places, 395 transitions, 802 flow. Second operand 3 states and 1169 transitions. [2022-04-18 16:31:47,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 387 transitions, 889 flow [2022-04-18 16:31:47,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 387 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:47,788 INFO L242 Difference]: Finished difference. Result has 384 places, 384 transitions, 805 flow [2022-04-18 16:31:47,788 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=384, PETRI_TRANSITIONS=384} [2022-04-18 16:31:47,790 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -23 predicate places. [2022-04-18 16:31:47,791 INFO L478 AbstractCegarLoop]: Abstraction has has 384 places, 384 transitions, 805 flow [2022-04-18 16:31:47,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:47,792 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:47,792 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] [2022-04-18 16:31:47,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:31:47,792 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:47,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:47,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2063019880, now seen corresponding path program 1 times [2022-04-18 16:31:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:47,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371776233] [2022-04-18 16:31:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:47,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:47,857 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 16:31:47,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:47,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371776233] [2022-04-18 16:31:47,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371776233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:47,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:47,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:47,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145367071] [2022-04-18 16:31:47,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:47,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:47,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:47,860 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 435 [2022-04-18 16:31:47,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 384 transitions, 805 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 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 16:31:47,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:47,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 435 [2022-04-18 16:31:47,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:48,051 INFO L129 PetriNetUnfolder]: 100/614 cut-off events. [2022-04-18 16:31:48,051 INFO L130 PetriNetUnfolder]: For 38/42 co-relation queries the response was YES. [2022-04-18 16:31:48,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 614 events. 100/614 cut-off events. For 38/42 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3413 event pairs, 54 based on Foata normal form. 0/534 useless extension candidates. Maximal degree in co-relation 818. Up to 142 conditions per place. [2022-04-18 16:31:48,062 INFO L132 encePairwiseOnDemand]: 415/435 looper letters, 39 selfloop transitions, 9 changer transitions 0/377 dead transitions. [2022-04-18 16:31:48,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 377 transitions, 890 flow [2022-04-18 16:31:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1175 transitions. [2022-04-18 16:31:48,064 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9003831417624522 [2022-04-18 16:31:48,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1175 transitions. [2022-04-18 16:31:48,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1175 transitions. [2022-04-18 16:31:48,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:48,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1175 transitions. [2022-04-18 16:31:48,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 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 16:31:48,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,069 INFO L186 Difference]: Start difference. First operand has 384 places, 384 transitions, 805 flow. Second operand 3 states and 1175 transitions. [2022-04-18 16:31:48,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 377 transitions, 890 flow [2022-04-18 16:31:48,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 377 transitions, 881 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:48,074 INFO L242 Difference]: Finished difference. Result has 375 places, 374 transitions, 805 flow [2022-04-18 16:31:48,074 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=375, PETRI_TRANSITIONS=374} [2022-04-18 16:31:48,075 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -32 predicate places. [2022-04-18 16:31:48,075 INFO L478 AbstractCegarLoop]: Abstraction has has 375 places, 374 transitions, 805 flow [2022-04-18 16:31:48,075 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 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 16:31:48,076 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:48,076 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] [2022-04-18 16:31:48,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:31:48,076 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1342748087, now seen corresponding path program 1 times [2022-04-18 16:31:48,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:48,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044033603] [2022-04-18 16:31:48,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:48,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:48,101 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 16:31:48,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:48,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044033603] [2022-04-18 16:31:48,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044033603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:48,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:48,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:48,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138525680] [2022-04-18 16:31:48,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:48,103 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:48,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:48,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:48,106 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 435 [2022-04-18 16:31:48,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 374 transitions, 805 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:48,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:48,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 435 [2022-04-18 16:31:48,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:48,261 INFO L129 PetriNetUnfolder]: 107/823 cut-off events. [2022-04-18 16:31:48,261 INFO L130 PetriNetUnfolder]: For 74/78 co-relation queries the response was YES. [2022-04-18 16:31:48,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 823 events. 107/823 cut-off events. For 74/78 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5171 event pairs, 36 based on Foata normal form. 1/726 useless extension candidates. Maximal degree in co-relation 992. Up to 145 conditions per place. [2022-04-18 16:31:48,280 INFO L132 encePairwiseOnDemand]: 413/435 looper letters, 44 selfloop transitions, 10 changer transitions 0/370 dead transitions. [2022-04-18 16:31:48,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 370 transitions, 911 flow [2022-04-18 16:31:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2022-04-18 16:31:48,283 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8988505747126436 [2022-04-18 16:31:48,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1173 transitions. [2022-04-18 16:31:48,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1173 transitions. [2022-04-18 16:31:48,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:48,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1173 transitions. [2022-04-18 16:31:48,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 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 16:31:48,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,287 INFO L186 Difference]: Start difference. First operand has 375 places, 374 transitions, 805 flow. Second operand 3 states and 1173 transitions. [2022-04-18 16:31:48,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 370 transitions, 911 flow [2022-04-18 16:31:48,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 370 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:48,294 INFO L242 Difference]: Finished difference. Result has 365 places, 364 transitions, 810 flow [2022-04-18 16:31:48,294 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=365, PETRI_TRANSITIONS=364} [2022-04-18 16:31:48,297 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -42 predicate places. [2022-04-18 16:31:48,297 INFO L478 AbstractCegarLoop]: Abstraction has has 365 places, 364 transitions, 810 flow [2022-04-18 16:31:48,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 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 16:31:48,298 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:48,298 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] [2022-04-18 16:31:48,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:31:48,298 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1890699172, now seen corresponding path program 1 times [2022-04-18 16:31:48,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:48,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367075568] [2022-04-18 16:31:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:48,348 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 16:31:48,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:48,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367075568] [2022-04-18 16:31:48,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367075568] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:48,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:48,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:31:48,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302404539] [2022-04-18 16:31:48,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:48,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:31:48,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:48,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:31:48,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:31:48,354 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 435 [2022-04-18 16:31:48,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 364 transitions, 810 flow. Second operand has 4 states, 4 states have (on average 409.25) internal successors, (1637), 4 states have internal predecessors, (1637), 0 states have call successors, (0), 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 16:31:48,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:48,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 435 [2022-04-18 16:31:48,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:48,444 INFO L129 PetriNetUnfolder]: 12/615 cut-off events. [2022-04-18 16:31:48,445 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-04-18 16:31:48,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 615 events. 12/615 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2631 event pairs, 0 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 499. Up to 27 conditions per place. [2022-04-18 16:31:48,453 INFO L132 encePairwiseOnDemand]: 429/435 looper letters, 22 selfloop transitions, 5 changer transitions 0/371 dead transitions. [2022-04-18 16:31:48,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 371 transitions, 878 flow [2022-04-18 16:31:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:31:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:31:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2068 transitions. [2022-04-18 16:31:48,457 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9508045977011494 [2022-04-18 16:31:48,457 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2068 transitions. [2022-04-18 16:31:48,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2068 transitions. [2022-04-18 16:31:48,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:48,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2068 transitions. [2022-04-18 16:31:48,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 413.6) internal successors, (2068), 5 states have internal predecessors, (2068), 0 states have call successors, (0), 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 16:31:48,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 435.0) internal successors, (2610), 6 states have internal predecessors, (2610), 0 states have call successors, (0), 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 16:31:48,473 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 435.0) internal successors, (2610), 6 states have internal predecessors, (2610), 0 states have call successors, (0), 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 16:31:48,474 INFO L186 Difference]: Start difference. First operand has 365 places, 364 transitions, 810 flow. Second operand 5 states and 2068 transitions. [2022-04-18 16:31:48,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 371 transitions, 878 flow [2022-04-18 16:31:48,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 371 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:48,480 INFO L242 Difference]: Finished difference. Result has 372 places, 368 transitions, 838 flow [2022-04-18 16:31:48,481 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=838, PETRI_PLACES=372, PETRI_TRANSITIONS=368} [2022-04-18 16:31:48,482 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -35 predicate places. [2022-04-18 16:31:48,482 INFO L478 AbstractCegarLoop]: Abstraction has has 372 places, 368 transitions, 838 flow [2022-04-18 16:31:48,484 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 409.25) internal successors, (1637), 4 states have internal predecessors, (1637), 0 states have call successors, (0), 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 16:31:48,484 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:48,484 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] [2022-04-18 16:31:48,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:31:48,484 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash -15246507, now seen corresponding path program 1 times [2022-04-18 16:31:48,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:48,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008874427] [2022-04-18 16:31:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:48,524 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 16:31:48,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:48,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008874427] [2022-04-18 16:31:48,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008874427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:48,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:48,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:48,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148607032] [2022-04-18 16:31:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:48,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:48,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:48,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:48,531 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 435 [2022-04-18 16:31:48,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 368 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 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 16:31:48,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:48,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 435 [2022-04-18 16:31:48,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:48,754 INFO L129 PetriNetUnfolder]: 173/1405 cut-off events. [2022-04-18 16:31:48,755 INFO L130 PetriNetUnfolder]: For 163/167 co-relation queries the response was YES. [2022-04-18 16:31:48,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 1405 events. 173/1405 cut-off events. For 163/167 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 10287 event pairs, 82 based on Foata normal form. 1/1247 useless extension candidates. Maximal degree in co-relation 1526. Up to 231 conditions per place. [2022-04-18 16:31:48,778 INFO L132 encePairwiseOnDemand]: 415/435 looper letters, 40 selfloop transitions, 9 changer transitions 11/365 dead transitions. [2022-04-18 16:31:48,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 365 transitions, 941 flow [2022-04-18 16:31:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1178 transitions. [2022-04-18 16:31:48,781 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9026819923371647 [2022-04-18 16:31:48,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1178 transitions. [2022-04-18 16:31:48,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1178 transitions. [2022-04-18 16:31:48,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:48,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1178 transitions. [2022-04-18 16:31:48,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 392.6666666666667) internal successors, (1178), 3 states have internal predecessors, (1178), 0 states have call successors, (0), 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 16:31:48,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:48,785 INFO L186 Difference]: Start difference. First operand has 372 places, 368 transitions, 838 flow. Second operand 3 states and 1178 transitions. [2022-04-18 16:31:48,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 365 transitions, 941 flow [2022-04-18 16:31:48,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 365 transitions, 941 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:48,872 INFO L242 Difference]: Finished difference. Result has 364 places, 347 transitions, 824 flow [2022-04-18 16:31:48,873 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=364, PETRI_TRANSITIONS=347} [2022-04-18 16:31:48,873 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -43 predicate places. [2022-04-18 16:31:48,873 INFO L478 AbstractCegarLoop]: Abstraction has has 364 places, 347 transitions, 824 flow [2022-04-18 16:31:48,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 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 16:31:48,874 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:48,874 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] [2022-04-18 16:31:48,874 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:31:48,874 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash 685404934, now seen corresponding path program 1 times [2022-04-18 16:31:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:48,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367163006] [2022-04-18 16:31:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:48,915 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 16:31:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:48,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367163006] [2022-04-18 16:31:48,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367163006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:48,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:48,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445720270] [2022-04-18 16:31:48,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:48,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:48,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:48,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:48,919 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 435 [2022-04-18 16:31:48,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 347 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 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 16:31:48,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:48,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 435 [2022-04-18 16:31:48,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:49,995 INFO L129 PetriNetUnfolder]: 733/9066 cut-off events. [2022-04-18 16:31:49,996 INFO L130 PetriNetUnfolder]: For 280/375 co-relation queries the response was YES. [2022-04-18 16:31:50,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11623 conditions, 9066 events. 733/9066 cut-off events. For 280/375 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 111697 event pairs, 276 based on Foata normal form. 3/8037 useless extension candidates. Maximal degree in co-relation 8657. Up to 929 conditions per place. [2022-04-18 16:31:50,074 INFO L132 encePairwiseOnDemand]: 427/435 looper letters, 20 selfloop transitions, 4 changer transitions 0/350 dead transitions. [2022-04-18 16:31:50,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 350 transitions, 881 flow [2022-04-18 16:31:50,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:50,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2022-04-18 16:31:50,077 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9524904214559387 [2022-04-18 16:31:50,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1243 transitions. [2022-04-18 16:31:50,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1243 transitions. [2022-04-18 16:31:50,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:50,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1243 transitions. [2022-04-18 16:31:50,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.3333333333333) internal successors, (1243), 3 states have internal predecessors, (1243), 0 states have call successors, (0), 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 16:31:50,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:50,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:50,081 INFO L186 Difference]: Start difference. First operand has 364 places, 347 transitions, 824 flow. Second operand 3 states and 1243 transitions. [2022-04-18 16:31:50,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 350 transitions, 881 flow [2022-04-18 16:31:50,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 350 transitions, 872 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:50,090 INFO L242 Difference]: Finished difference. Result has 351 places, 347 transitions, 835 flow [2022-04-18 16:31:50,091 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=351, PETRI_TRANSITIONS=347} [2022-04-18 16:31:50,091 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -56 predicate places. [2022-04-18 16:31:50,091 INFO L478 AbstractCegarLoop]: Abstraction has has 351 places, 347 transitions, 835 flow [2022-04-18 16:31:50,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 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 16:31:50,092 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:50,092 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] [2022-04-18 16:31:50,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:31:50,092 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2061292385, now seen corresponding path program 1 times [2022-04-18 16:31:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:50,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679225354] [2022-04-18 16:31:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:50,118 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 16:31:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:50,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679225354] [2022-04-18 16:31:50,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679225354] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:50,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:50,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265888166] [2022-04-18 16:31:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:50,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:50,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:50,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:50,120 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:50,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 347 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 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 16:31:50,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:50,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:50,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:50,554 INFO L129 PetriNetUnfolder]: 426/3012 cut-off events. [2022-04-18 16:31:50,554 INFO L130 PetriNetUnfolder]: For 94/109 co-relation queries the response was YES. [2022-04-18 16:31:50,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4651 conditions, 3012 events. 426/3012 cut-off events. For 94/109 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 29031 event pairs, 289 based on Foata normal form. 0/2709 useless extension candidates. Maximal degree in co-relation 3125. Up to 678 conditions per place. [2022-04-18 16:31:50,615 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 46 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-04-18 16:31:50,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 349 transitions, 938 flow [2022-04-18 16:31:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2022-04-18 16:31:50,618 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8804597701149425 [2022-04-18 16:31:50,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2022-04-18 16:31:50,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2022-04-18 16:31:50,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:50,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2022-04-18 16:31:50,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 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 16:31:50,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:50,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:50,622 INFO L186 Difference]: Start difference. First operand has 351 places, 347 transitions, 835 flow. Second operand 3 states and 1149 transitions. [2022-04-18 16:31:50,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 349 transitions, 938 flow [2022-04-18 16:31:50,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 349 transitions, 938 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:50,627 INFO L242 Difference]: Finished difference. Result has 352 places, 346 transitions, 837 flow [2022-04-18 16:31:50,628 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=837, PETRI_PLACES=352, PETRI_TRANSITIONS=346} [2022-04-18 16:31:50,628 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -55 predicate places. [2022-04-18 16:31:50,629 INFO L478 AbstractCegarLoop]: Abstraction has has 352 places, 346 transitions, 837 flow [2022-04-18 16:31:50,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 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 16:31:50,629 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:50,629 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:50,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:31:50,629 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 714547496, now seen corresponding path program 1 times [2022-04-18 16:31:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:50,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023397863] [2022-04-18 16:31:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:50,659 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 16:31:50,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:50,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023397863] [2022-04-18 16:31:50,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023397863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:50,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:50,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:50,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600010865] [2022-04-18 16:31:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:50,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:50,665 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:50,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 346 transitions, 837 flow. Second operand has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 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 16:31:50,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:50,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:50,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:51,412 INFO L129 PetriNetUnfolder]: 623/3419 cut-off events. [2022-04-18 16:31:51,413 INFO L130 PetriNetUnfolder]: For 250/271 co-relation queries the response was YES. [2022-04-18 16:31:51,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 3419 events. 623/3419 cut-off events. For 250/271 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 34179 event pairs, 463 based on Foata normal form. 0/3098 useless extension candidates. Maximal degree in co-relation 5459. Up to 1108 conditions per place. [2022-04-18 16:31:51,482 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 44 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-04-18 16:31:51,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 348 transitions, 936 flow [2022-04-18 16:31:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2022-04-18 16:31:51,485 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.885823754789272 [2022-04-18 16:31:51,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1156 transitions. [2022-04-18 16:31:51,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1156 transitions. [2022-04-18 16:31:51,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:51,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1156 transitions. [2022-04-18 16:31:51,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 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 16:31:51,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:51,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:51,489 INFO L186 Difference]: Start difference. First operand has 352 places, 346 transitions, 837 flow. Second operand 3 states and 1156 transitions. [2022-04-18 16:31:51,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 348 transitions, 936 flow [2022-04-18 16:31:51,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 348 transitions, 932 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:51,496 INFO L242 Difference]: Finished difference. Result has 351 places, 345 transitions, 835 flow [2022-04-18 16:31:51,496 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=351, PETRI_TRANSITIONS=345} [2022-04-18 16:31:51,496 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -56 predicate places. [2022-04-18 16:31:51,496 INFO L478 AbstractCegarLoop]: Abstraction has has 351 places, 345 transitions, 835 flow [2022-04-18 16:31:51,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 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 16:31:51,497 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:51,497 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] [2022-04-18 16:31:51,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:31:51,497 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash 223912818, now seen corresponding path program 1 times [2022-04-18 16:31:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:51,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073127593] [2022-04-18 16:31:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:51,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:51,518 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 16:31:51,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:51,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073127593] [2022-04-18 16:31:51,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073127593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:51,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:51,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:51,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911425145] [2022-04-18 16:31:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:51,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:51,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:51,521 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:51,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 345 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 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 16:31:51,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:51,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:51,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:52,001 INFO L129 PetriNetUnfolder]: 417/2979 cut-off events. [2022-04-18 16:31:52,001 INFO L130 PetriNetUnfolder]: For 106/121 co-relation queries the response was YES. [2022-04-18 16:31:52,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4613 conditions, 2979 events. 417/2979 cut-off events. For 106/121 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 28731 event pairs, 280 based on Foata normal form. 0/2700 useless extension candidates. Maximal degree in co-relation 4013. Up to 657 conditions per place. [2022-04-18 16:31:52,057 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 45 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-04-18 16:31:52,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 347 transitions, 936 flow [2022-04-18 16:31:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1148 transitions. [2022-04-18 16:31:52,059 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8796934865900383 [2022-04-18 16:31:52,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1148 transitions. [2022-04-18 16:31:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1148 transitions. [2022-04-18 16:31:52,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:52,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1148 transitions. [2022-04-18 16:31:52,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 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 16:31:52,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:52,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:52,064 INFO L186 Difference]: Start difference. First operand has 351 places, 345 transitions, 835 flow. Second operand 3 states and 1148 transitions. [2022-04-18 16:31:52,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 347 transitions, 936 flow [2022-04-18 16:31:52,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 347 transitions, 932 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:52,070 INFO L242 Difference]: Finished difference. Result has 350 places, 344 transitions, 833 flow [2022-04-18 16:31:52,070 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=350, PETRI_TRANSITIONS=344} [2022-04-18 16:31:52,071 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -57 predicate places. [2022-04-18 16:31:52,071 INFO L478 AbstractCegarLoop]: Abstraction has has 350 places, 344 transitions, 833 flow [2022-04-18 16:31:52,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 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 16:31:52,071 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:52,072 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 16:31:52,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:31:52,072 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 195006870, now seen corresponding path program 1 times [2022-04-18 16:31:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434228741] [2022-04-18 16:31:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:52,093 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 16:31:52,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:52,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434228741] [2022-04-18 16:31:52,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434228741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:52,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:52,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:52,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051578525] [2022-04-18 16:31:52,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:52,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:52,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:52,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:52,096 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:52,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 344 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 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 16:31:52,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:52,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:52,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:52,608 INFO L129 PetriNetUnfolder]: 387/2876 cut-off events. [2022-04-18 16:31:52,609 INFO L130 PetriNetUnfolder]: For 250/274 co-relation queries the response was YES. [2022-04-18 16:31:52,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4374 conditions, 2876 events. 387/2876 cut-off events. For 250/274 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 27562 event pairs, 255 based on Foata normal form. 0/2598 useless extension candidates. Maximal degree in co-relation 4223. Up to 724 conditions per place. [2022-04-18 16:31:52,666 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 47 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-04-18 16:31:52,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 346 transitions, 938 flow [2022-04-18 16:31:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2022-04-18 16:31:52,669 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8804597701149425 [2022-04-18 16:31:52,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2022-04-18 16:31:52,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2022-04-18 16:31:52,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:52,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2022-04-18 16:31:52,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 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 16:31:52,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:52,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:52,674 INFO L186 Difference]: Start difference. First operand has 350 places, 344 transitions, 833 flow. Second operand 3 states and 1149 transitions. [2022-04-18 16:31:52,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 346 transitions, 938 flow [2022-04-18 16:31:52,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 346 transitions, 934 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:52,679 INFO L242 Difference]: Finished difference. Result has 349 places, 343 transitions, 831 flow [2022-04-18 16:31:52,680 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=349, PETRI_TRANSITIONS=343} [2022-04-18 16:31:52,680 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -58 predicate places. [2022-04-18 16:31:52,680 INFO L478 AbstractCegarLoop]: Abstraction has has 349 places, 343 transitions, 831 flow [2022-04-18 16:31:52,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 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 16:31:52,681 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:52,681 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] [2022-04-18 16:31:52,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:31:52,681 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:52,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2040247395, now seen corresponding path program 1 times [2022-04-18 16:31:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:52,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865550399] [2022-04-18 16:31:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:52,766 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 16:31:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:52,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865550399] [2022-04-18 16:31:52,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865550399] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:52,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:52,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760520946] [2022-04-18 16:31:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:52,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:52,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:52,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:52,771 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 435 [2022-04-18 16:31:52,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 343 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 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 16:31:52,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:52,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 435 [2022-04-18 16:31:52,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:53,094 INFO L129 PetriNetUnfolder]: 88/1794 cut-off events. [2022-04-18 16:31:53,094 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 16:31:53,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 1794 events. 88/1794 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14006 event pairs, 8 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 1970. Up to 108 conditions per place. [2022-04-18 16:31:53,130 INFO L132 encePairwiseOnDemand]: 430/435 looper letters, 30 selfloop transitions, 4 changer transitions 0/342 dead transitions. [2022-04-18 16:31:53,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 342 transitions, 897 flow [2022-04-18 16:31:53,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2375 transitions. [2022-04-18 16:31:53,135 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9099616858237548 [2022-04-18 16:31:53,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2375 transitions. [2022-04-18 16:31:53,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2375 transitions. [2022-04-18 16:31:53,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:53,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2375 transitions. [2022-04-18 16:31:53,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 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 16:31:53,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:53,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:53,145 INFO L186 Difference]: Start difference. First operand has 349 places, 343 transitions, 831 flow. Second operand 6 states and 2375 transitions. [2022-04-18 16:31:53,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 342 transitions, 897 flow [2022-04-18 16:31:53,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 342 transitions, 893 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:53,151 INFO L242 Difference]: Finished difference. Result has 351 places, 342 transitions, 833 flow [2022-04-18 16:31:53,151 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=833, PETRI_PLACES=351, PETRI_TRANSITIONS=342} [2022-04-18 16:31:53,151 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -56 predicate places. [2022-04-18 16:31:53,152 INFO L478 AbstractCegarLoop]: Abstraction has has 351 places, 342 transitions, 833 flow [2022-04-18 16:31:53,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 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 16:31:53,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:53,154 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 16:31:53,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:31:53,154 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:53,155 INFO L85 PathProgramCache]: Analyzing trace with hash 549423174, now seen corresponding path program 1 times [2022-04-18 16:31:53,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:53,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236238602] [2022-04-18 16:31:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:53,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:53,186 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 16:31:53,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236238602] [2022-04-18 16:31:53,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236238602] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:53,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:53,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:53,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712649200] [2022-04-18 16:31:53,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:53,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:53,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:53,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:53,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:53,190 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:53,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 342 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 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 16:31:53,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:53,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:53,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:53,737 INFO L129 PetriNetUnfolder]: 608/3361 cut-off events. [2022-04-18 16:31:53,737 INFO L130 PetriNetUnfolder]: For 244/265 co-relation queries the response was YES. [2022-04-18 16:31:53,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5554 conditions, 3361 events. 608/3361 cut-off events. For 244/265 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 33297 event pairs, 448 based on Foata normal form. 0/3083 useless extension candidates. Maximal degree in co-relation 4694. Up to 1072 conditions per place. [2022-04-18 16:31:53,784 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 43 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-04-18 16:31:53,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 344 transitions, 930 flow [2022-04-18 16:31:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-04-18 16:31:53,786 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8850574712643678 [2022-04-18 16:31:53,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-04-18 16:31:53,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-04-18 16:31:53,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:53,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-04-18 16:31:53,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 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 16:31:53,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:53,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:53,790 INFO L186 Difference]: Start difference. First operand has 351 places, 342 transitions, 833 flow. Second operand 3 states and 1155 transitions. [2022-04-18 16:31:53,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 344 transitions, 930 flow [2022-04-18 16:31:53,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 344 transitions, 923 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:53,795 INFO L242 Difference]: Finished difference. Result has 348 places, 341 transitions, 828 flow [2022-04-18 16:31:53,796 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=348, PETRI_TRANSITIONS=341} [2022-04-18 16:31:53,796 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -59 predicate places. [2022-04-18 16:31:53,796 INFO L478 AbstractCegarLoop]: Abstraction has has 348 places, 341 transitions, 828 flow [2022-04-18 16:31:53,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 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 16:31:53,796 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:53,796 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] [2022-04-18 16:31:53,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:31:53,797 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:53,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:53,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1539199117, now seen corresponding path program 1 times [2022-04-18 16:31:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:53,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469648389] [2022-04-18 16:31:53,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:53,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:53,816 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 16:31:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:53,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469648389] [2022-04-18 16:31:53,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469648389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:53,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:53,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:53,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997297029] [2022-04-18 16:31:53,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:53,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:53,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:53,818 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:53,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 341 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:31:53,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:53,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:53,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:54,213 INFO L129 PetriNetUnfolder]: 408/2929 cut-off events. [2022-04-18 16:31:54,213 INFO L130 PetriNetUnfolder]: For 106/121 co-relation queries the response was YES. [2022-04-18 16:31:54,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4536 conditions, 2929 events. 408/2929 cut-off events. For 106/121 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 27923 event pairs, 271 based on Foata normal form. 0/2691 useless extension candidates. Maximal degree in co-relation 4080. Up to 636 conditions per place. [2022-04-18 16:31:54,269 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 44 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2022-04-18 16:31:54,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 343 transitions, 927 flow [2022-04-18 16:31:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1147 transitions. [2022-04-18 16:31:54,271 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.878927203065134 [2022-04-18 16:31:54,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1147 transitions. [2022-04-18 16:31:54,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1147 transitions. [2022-04-18 16:31:54,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:54,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1147 transitions. [2022-04-18 16:31:54,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 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 16:31:54,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:54,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:54,275 INFO L186 Difference]: Start difference. First operand has 348 places, 341 transitions, 828 flow. Second operand 3 states and 1147 transitions. [2022-04-18 16:31:54,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 343 transitions, 927 flow [2022-04-18 16:31:54,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 343 transitions, 923 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:54,281 INFO L242 Difference]: Finished difference. Result has 347 places, 340 transitions, 826 flow [2022-04-18 16:31:54,281 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=347, PETRI_TRANSITIONS=340} [2022-04-18 16:31:54,281 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -60 predicate places. [2022-04-18 16:31:54,282 INFO L478 AbstractCegarLoop]: Abstraction has has 347 places, 340 transitions, 826 flow [2022-04-18 16:31:54,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:31:54,282 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:54,282 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] [2022-04-18 16:31:54,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:31:54,282 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:54,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash -983902946, now seen corresponding path program 1 times [2022-04-18 16:31:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:54,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53041187] [2022-04-18 16:31:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:54,310 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 16:31:54,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:54,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53041187] [2022-04-18 16:31:54,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53041187] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:54,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112441067] [2022-04-18 16:31:54,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:54,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:54,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:54,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:54,313 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:54,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 340 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 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 16:31:54,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:54,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:54,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:54,607 INFO L129 PetriNetUnfolder]: 302/2425 cut-off events. [2022-04-18 16:31:54,607 INFO L130 PetriNetUnfolder]: For 275/285 co-relation queries the response was YES. [2022-04-18 16:31:54,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3483 conditions, 2425 events. 302/2425 cut-off events. For 275/285 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 21814 event pairs, 192 based on Foata normal form. 0/2206 useless extension candidates. Maximal degree in co-relation 3376. Up to 507 conditions per place. [2022-04-18 16:31:54,645 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 44 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-04-18 16:31:54,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 342 transitions, 925 flow [2022-04-18 16:31:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2022-04-18 16:31:54,647 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.885823754789272 [2022-04-18 16:31:54,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1156 transitions. [2022-04-18 16:31:54,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1156 transitions. [2022-04-18 16:31:54,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:54,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1156 transitions. [2022-04-18 16:31:54,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 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 16:31:54,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:54,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:54,651 INFO L186 Difference]: Start difference. First operand has 347 places, 340 transitions, 826 flow. Second operand 3 states and 1156 transitions. [2022-04-18 16:31:54,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 342 transitions, 925 flow [2022-04-18 16:31:54,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 342 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:54,656 INFO L242 Difference]: Finished difference. Result has 346 places, 339 transitions, 824 flow [2022-04-18 16:31:54,657 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=346, PETRI_TRANSITIONS=339} [2022-04-18 16:31:54,657 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -61 predicate places. [2022-04-18 16:31:54,657 INFO L478 AbstractCegarLoop]: Abstraction has has 346 places, 339 transitions, 824 flow [2022-04-18 16:31:54,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 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 16:31:54,657 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:54,657 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] [2022-04-18 16:31:54,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:31:54,658 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1215867309, now seen corresponding path program 1 times [2022-04-18 16:31:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:54,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253191709] [2022-04-18 16:31:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:54,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:54,676 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 16:31:54,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:54,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253191709] [2022-04-18 16:31:54,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253191709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:54,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:54,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:54,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573977177] [2022-04-18 16:31:54,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:54,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:54,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:54,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:54,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:54,678 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:54,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 339 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 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 16:31:54,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:54,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:54,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:55,079 INFO L129 PetriNetUnfolder]: 379/2819 cut-off events. [2022-04-18 16:31:55,079 INFO L130 PetriNetUnfolder]: For 251/275 co-relation queries the response was YES. [2022-04-18 16:31:55,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 2819 events. 379/2819 cut-off events. For 251/275 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 26589 event pairs, 247 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 3941. Up to 701 conditions per place. [2022-04-18 16:31:55,134 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 46 selfloop transitions, 2 changer transitions 0/341 dead transitions. [2022-04-18 16:31:55,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 341 transitions, 927 flow [2022-04-18 16:31:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1148 transitions. [2022-04-18 16:31:55,136 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8796934865900383 [2022-04-18 16:31:55,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1148 transitions. [2022-04-18 16:31:55,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1148 transitions. [2022-04-18 16:31:55,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:55,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1148 transitions. [2022-04-18 16:31:55,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 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 16:31:55,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:55,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:55,139 INFO L186 Difference]: Start difference. First operand has 346 places, 339 transitions, 824 flow. Second operand 3 states and 1148 transitions. [2022-04-18 16:31:55,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 341 transitions, 927 flow [2022-04-18 16:31:55,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 341 transitions, 923 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:55,146 INFO L242 Difference]: Finished difference. Result has 345 places, 338 transitions, 822 flow [2022-04-18 16:31:55,146 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=822, PETRI_PLACES=345, PETRI_TRANSITIONS=338} [2022-04-18 16:31:55,147 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -62 predicate places. [2022-04-18 16:31:55,147 INFO L478 AbstractCegarLoop]: Abstraction has has 345 places, 338 transitions, 822 flow [2022-04-18 16:31:55,147 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 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 16:31:55,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:55,147 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] [2022-04-18 16:31:55,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:31:55,147 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:55,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 644693236, now seen corresponding path program 1 times [2022-04-18 16:31:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:55,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072870311] [2022-04-18 16:31:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:55,214 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 16:31:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:55,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072870311] [2022-04-18 16:31:55,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072870311] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:55,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:55,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:55,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92629356] [2022-04-18 16:31:55,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:55,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:55,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:55,216 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:55,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 338 transitions, 822 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 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 16:31:55,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:55,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:55,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:55,710 INFO L129 PetriNetUnfolder]: 593/3293 cut-off events. [2022-04-18 16:31:55,711 INFO L130 PetriNetUnfolder]: For 257/278 co-relation queries the response was YES. [2022-04-18 16:31:55,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5461 conditions, 3293 events. 593/3293 cut-off events. For 257/278 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 32325 event pairs, 433 based on Foata normal form. 0/3068 useless extension candidates. Maximal degree in co-relation 4924. Up to 1036 conditions per place. [2022-04-18 16:31:55,773 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 42 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2022-04-18 16:31:55,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 340 transitions, 917 flow [2022-04-18 16:31:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1154 transitions. [2022-04-18 16:31:55,775 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8842911877394636 [2022-04-18 16:31:55,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1154 transitions. [2022-04-18 16:31:55,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1154 transitions. [2022-04-18 16:31:55,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:55,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1154 transitions. [2022-04-18 16:31:55,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 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 16:31:55,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:55,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:55,779 INFO L186 Difference]: Start difference. First operand has 345 places, 338 transitions, 822 flow. Second operand 3 states and 1154 transitions. [2022-04-18 16:31:55,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 340 transitions, 917 flow [2022-04-18 16:31:55,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 340 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:55,785 INFO L242 Difference]: Finished difference. Result has 344 places, 337 transitions, 820 flow [2022-04-18 16:31:55,785 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=344, PETRI_TRANSITIONS=337} [2022-04-18 16:31:55,785 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -63 predicate places. [2022-04-18 16:31:55,785 INFO L478 AbstractCegarLoop]: Abstraction has has 344 places, 337 transitions, 820 flow [2022-04-18 16:31:55,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 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 16:31:55,786 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:55,786 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] [2022-04-18 16:31:55,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:31:55,786 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash 903949278, now seen corresponding path program 1 times [2022-04-18 16:31:55,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:55,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365647939] [2022-04-18 16:31:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:55,819 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 16:31:55,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:55,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365647939] [2022-04-18 16:31:55,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365647939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:55,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:55,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:55,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900621221] [2022-04-18 16:31:55,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:55,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:55,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:55,821 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:55,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 337 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:31:55,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:55,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:55,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:56,212 INFO L129 PetriNetUnfolder]: 399/2872 cut-off events. [2022-04-18 16:31:56,213 INFO L130 PetriNetUnfolder]: For 106/121 co-relation queries the response was YES. [2022-04-18 16:31:56,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4449 conditions, 2872 events. 399/2872 cut-off events. For 106/121 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 27153 event pairs, 262 based on Foata normal form. 0/2682 useless extension candidates. Maximal degree in co-relation 4137. Up to 615 conditions per place. [2022-04-18 16:31:56,263 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 43 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2022-04-18 16:31:56,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 339 transitions, 917 flow [2022-04-18 16:31:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2022-04-18 16:31:56,265 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8781609195402299 [2022-04-18 16:31:56,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2022-04-18 16:31:56,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2022-04-18 16:31:56,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:56,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2022-04-18 16:31:56,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 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 16:31:56,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:56,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:56,269 INFO L186 Difference]: Start difference. First operand has 344 places, 337 transitions, 820 flow. Second operand 3 states and 1146 transitions. [2022-04-18 16:31:56,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 339 transitions, 917 flow [2022-04-18 16:31:56,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 339 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:56,274 INFO L242 Difference]: Finished difference. Result has 343 places, 336 transitions, 818 flow [2022-04-18 16:31:56,275 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=818, PETRI_PLACES=343, PETRI_TRANSITIONS=336} [2022-04-18 16:31:56,275 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -64 predicate places. [2022-04-18 16:31:56,275 INFO L478 AbstractCegarLoop]: Abstraction has has 343 places, 336 transitions, 818 flow [2022-04-18 16:31:56,276 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:31:56,276 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:56,276 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] [2022-04-18 16:31:56,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:31:56,276 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:56,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1972317830, now seen corresponding path program 1 times [2022-04-18 16:31:56,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:56,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359824434] [2022-04-18 16:31:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:56,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:56,312 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 16:31:56,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:56,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359824434] [2022-04-18 16:31:56,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359824434] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:56,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:56,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339255233] [2022-04-18 16:31:56,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:56,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:56,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:56,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:56,316 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:56,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 336 transitions, 818 flow. Second operand has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 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 16:31:56,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:56,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:56,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:56,615 INFO L129 PetriNetUnfolder]: 296/2380 cut-off events. [2022-04-18 16:31:56,616 INFO L130 PetriNetUnfolder]: For 269/279 co-relation queries the response was YES. [2022-04-18 16:31:56,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3422 conditions, 2380 events. 296/2380 cut-off events. For 269/279 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 21089 event pairs, 186 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 3351. Up to 491 conditions per place. [2022-04-18 16:31:56,655 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 43 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2022-04-18 16:31:56,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 338 transitions, 915 flow [2022-04-18 16:31:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-04-18 16:31:56,657 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8850574712643678 [2022-04-18 16:31:56,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-04-18 16:31:56,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-04-18 16:31:56,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:56,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-04-18 16:31:56,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 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 16:31:56,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:56,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:56,661 INFO L186 Difference]: Start difference. First operand has 343 places, 336 transitions, 818 flow. Second operand 3 states and 1155 transitions. [2022-04-18 16:31:56,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 338 transitions, 915 flow [2022-04-18 16:31:56,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 338 transitions, 911 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:56,666 INFO L242 Difference]: Finished difference. Result has 342 places, 335 transitions, 816 flow [2022-04-18 16:31:56,667 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=342, PETRI_TRANSITIONS=335} [2022-04-18 16:31:56,667 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -65 predicate places. [2022-04-18 16:31:56,667 INFO L478 AbstractCegarLoop]: Abstraction has has 342 places, 335 transitions, 816 flow [2022-04-18 16:31:56,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 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 16:31:56,667 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:56,667 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 16:31:56,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:31:56,668 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 45876516, now seen corresponding path program 1 times [2022-04-18 16:31:56,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:56,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463231787] [2022-04-18 16:31:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:56,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:56,745 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 16:31:56,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:56,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463231787] [2022-04-18 16:31:56,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463231787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:56,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:56,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:56,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771444519] [2022-04-18 16:31:56,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:56,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:56,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:56,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:56,747 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 435 [2022-04-18 16:31:56,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 335 transitions, 816 flow. Second operand has 6 states, 6 states have (on average 393.1666666666667) internal successors, (2359), 6 states have internal predecessors, (2359), 0 states have call successors, (0), 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 16:31:56,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:56,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 435 [2022-04-18 16:31:56,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:56,993 INFO L129 PetriNetUnfolder]: 88/1741 cut-off events. [2022-04-18 16:31:56,993 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-04-18 16:31:57,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 1741 events. 88/1741 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13342 event pairs, 8 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 2117. Up to 108 conditions per place. [2022-04-18 16:31:57,021 INFO L132 encePairwiseOnDemand]: 430/435 looper letters, 29 selfloop transitions, 4 changer transitions 0/334 dead transitions. [2022-04-18 16:31:57,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 334 transitions, 880 flow [2022-04-18 16:31:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2374 transitions. [2022-04-18 16:31:57,024 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9095785440613027 [2022-04-18 16:31:57,024 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2374 transitions. [2022-04-18 16:31:57,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2374 transitions. [2022-04-18 16:31:57,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:57,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2374 transitions. [2022-04-18 16:31:57,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 395.6666666666667) internal successors, (2374), 6 states have internal predecessors, (2374), 0 states have call successors, (0), 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 16:31:57,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:57,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:57,030 INFO L186 Difference]: Start difference. First operand has 342 places, 335 transitions, 816 flow. Second operand 6 states and 2374 transitions. [2022-04-18 16:31:57,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 334 transitions, 880 flow [2022-04-18 16:31:57,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 334 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:57,035 INFO L242 Difference]: Finished difference. Result has 344 places, 334 transitions, 818 flow [2022-04-18 16:31:57,036 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=818, PETRI_PLACES=344, PETRI_TRANSITIONS=334} [2022-04-18 16:31:57,036 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -63 predicate places. [2022-04-18 16:31:57,036 INFO L478 AbstractCegarLoop]: Abstraction has has 344 places, 334 transitions, 818 flow [2022-04-18 16:31:57,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 393.1666666666667) internal successors, (2359), 6 states have internal predecessors, (2359), 0 states have call successors, (0), 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 16:31:57,036 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:57,037 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] [2022-04-18 16:31:57,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:31:57,037 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:57,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1980469314, now seen corresponding path program 1 times [2022-04-18 16:31:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:57,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697509038] [2022-04-18 16:31:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:57,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:57,072 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 16:31:57,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:57,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697509038] [2022-04-18 16:31:57,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697509038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:57,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:57,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:57,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946343569] [2022-04-18 16:31:57,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:57,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:57,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:57,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:57,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:57,075 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:57,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 334 transitions, 818 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:31:57,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:57,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:57,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:57,467 INFO L129 PetriNetUnfolder]: 371/2762 cut-off events. [2022-04-18 16:31:57,468 INFO L130 PetriNetUnfolder]: For 239/263 co-relation queries the response was YES. [2022-04-18 16:31:57,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4215 conditions, 2762 events. 371/2762 cut-off events. For 239/263 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 25885 event pairs, 239 based on Foata normal form. 0/2582 useless extension candidates. Maximal degree in co-relation 3708. Up to 678 conditions per place. [2022-04-18 16:31:57,515 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 45 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2022-04-18 16:31:57,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 336 transitions, 919 flow [2022-04-18 16:31:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1147 transitions. [2022-04-18 16:31:57,517 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.878927203065134 [2022-04-18 16:31:57,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1147 transitions. [2022-04-18 16:31:57,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1147 transitions. [2022-04-18 16:31:57,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:57,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1147 transitions. [2022-04-18 16:31:57,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 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 16:31:57,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:57,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:57,520 INFO L186 Difference]: Start difference. First operand has 344 places, 334 transitions, 818 flow. Second operand 3 states and 1147 transitions. [2022-04-18 16:31:57,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 336 transitions, 919 flow [2022-04-18 16:31:57,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 336 transitions, 912 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:57,525 INFO L242 Difference]: Finished difference. Result has 341 places, 333 transitions, 813 flow [2022-04-18 16:31:57,526 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=813, PETRI_PLACES=341, PETRI_TRANSITIONS=333} [2022-04-18 16:31:57,526 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -66 predicate places. [2022-04-18 16:31:57,526 INFO L478 AbstractCegarLoop]: Abstraction has has 341 places, 333 transitions, 813 flow [2022-04-18 16:31:57,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:31:57,526 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:57,526 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] [2022-04-18 16:31:57,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 16:31:57,527 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:57,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:57,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1116464658, now seen corresponding path program 1 times [2022-04-18 16:31:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:57,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229747204] [2022-04-18 16:31:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:57,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:57,558 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 16:31:57,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:57,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229747204] [2022-04-18 16:31:57,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229747204] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:57,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:57,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:57,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123131609] [2022-04-18 16:31:57,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:57,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:57,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:57,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:57,560 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:57,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 333 transitions, 813 flow. Second operand has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 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 16:31:57,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:57,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:57,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:57,998 INFO L129 PetriNetUnfolder]: 578/3222 cut-off events. [2022-04-18 16:31:57,998 INFO L130 PetriNetUnfolder]: For 254/275 co-relation queries the response was YES. [2022-04-18 16:31:58,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5345 conditions, 3222 events. 578/3222 cut-off events. For 254/275 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 31383 event pairs, 418 based on Foata normal form. 0/3053 useless extension candidates. Maximal degree in co-relation 5000. Up to 1000 conditions per place. [2022-04-18 16:31:58,052 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 41 selfloop transitions, 2 changer transitions 0/335 dead transitions. [2022-04-18 16:31:58,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 335 transitions, 906 flow [2022-04-18 16:31:58,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1153 transitions. [2022-04-18 16:31:58,062 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8835249042145594 [2022-04-18 16:31:58,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1153 transitions. [2022-04-18 16:31:58,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1153 transitions. [2022-04-18 16:31:58,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:58,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1153 transitions. [2022-04-18 16:31:58,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 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 16:31:58,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,065 INFO L186 Difference]: Start difference. First operand has 341 places, 333 transitions, 813 flow. Second operand 3 states and 1153 transitions. [2022-04-18 16:31:58,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 335 transitions, 906 flow [2022-04-18 16:31:58,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 335 transitions, 902 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:58,072 INFO L242 Difference]: Finished difference. Result has 340 places, 332 transitions, 811 flow [2022-04-18 16:31:58,072 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=340, PETRI_TRANSITIONS=332} [2022-04-18 16:31:58,073 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -67 predicate places. [2022-04-18 16:31:58,073 INFO L478 AbstractCegarLoop]: Abstraction has has 340 places, 332 transitions, 811 flow [2022-04-18 16:31:58,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 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 16:31:58,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:58,073 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] [2022-04-18 16:31:58,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 16:31:58,073 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting thread4Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash -407116758, now seen corresponding path program 1 times [2022-04-18 16:31:58,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:58,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580377845] [2022-04-18 16:31:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:58,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:58,095 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 16:31:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580377845] [2022-04-18 16:31:58,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580377845] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:58,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:58,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720284649] [2022-04-18 16:31:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:58,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:58,096 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:58,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 332 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 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 16:31:58,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:58,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:58,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:58,402 INFO L129 PetriNetUnfolder]: 290/2335 cut-off events. [2022-04-18 16:31:58,402 INFO L130 PetriNetUnfolder]: For 276/286 co-relation queries the response was YES. [2022-04-18 16:31:58,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3390 conditions, 2335 events. 290/2335 cut-off events. For 276/286 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20461 event pairs, 180 based on Foata normal form. 0/2194 useless extension candidates. Maximal degree in co-relation 3196. Up to 475 conditions per place. [2022-04-18 16:31:58,439 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 42 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2022-04-18 16:31:58,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 334 transitions, 906 flow [2022-04-18 16:31:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:58,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1154 transitions. [2022-04-18 16:31:58,441 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8842911877394636 [2022-04-18 16:31:58,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1154 transitions. [2022-04-18 16:31:58,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1154 transitions. [2022-04-18 16:31:58,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:58,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1154 transitions. [2022-04-18 16:31:58,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 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 16:31:58,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,444 INFO L186 Difference]: Start difference. First operand has 340 places, 332 transitions, 811 flow. Second operand 3 states and 1154 transitions. [2022-04-18 16:31:58,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 334 transitions, 906 flow [2022-04-18 16:31:58,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 334 transitions, 902 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:58,449 INFO L242 Difference]: Finished difference. Result has 339 places, 331 transitions, 809 flow [2022-04-18 16:31:58,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=809, PETRI_PLACES=339, PETRI_TRANSITIONS=331} [2022-04-18 16:31:58,450 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -68 predicate places. [2022-04-18 16:31:58,450 INFO L478 AbstractCegarLoop]: Abstraction has has 339 places, 331 transitions, 809 flow [2022-04-18 16:31:58,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 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 16:31:58,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:58,450 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] [2022-04-18 16:31:58,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 16:31:58,450 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1736504001, now seen corresponding path program 1 times [2022-04-18 16:31:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767265707] [2022-04-18 16:31:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:58,472 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 16:31:58,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:58,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767265707] [2022-04-18 16:31:58,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767265707] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:58,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:58,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:58,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338453142] [2022-04-18 16:31:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:58,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:58,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:58,475 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 435 [2022-04-18 16:31:58,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 331 transitions, 809 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:31:58,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:58,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 435 [2022-04-18 16:31:58,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:58,877 INFO L129 PetriNetUnfolder]: 362/2710 cut-off events. [2022-04-18 16:31:58,878 INFO L130 PetriNetUnfolder]: For 247/271 co-relation queries the response was YES. [2022-04-18 16:31:58,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4142 conditions, 2710 events. 362/2710 cut-off events. For 247/271 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 25208 event pairs, 229 based on Foata normal form. 0/2573 useless extension candidates. Maximal degree in co-relation 3972. Up to 654 conditions per place. [2022-04-18 16:31:58,929 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 44 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2022-04-18 16:31:58,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 333 transitions, 908 flow [2022-04-18 16:31:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2022-04-18 16:31:58,931 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8781609195402299 [2022-04-18 16:31:58,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2022-04-18 16:31:58,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2022-04-18 16:31:58,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:58,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2022-04-18 16:31:58,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 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 16:31:58,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:58,934 INFO L186 Difference]: Start difference. First operand has 339 places, 331 transitions, 809 flow. Second operand 3 states and 1146 transitions. [2022-04-18 16:31:58,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 333 transitions, 908 flow [2022-04-18 16:31:58,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 333 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:58,940 INFO L242 Difference]: Finished difference. Result has 338 places, 330 transitions, 807 flow [2022-04-18 16:31:58,940 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=338, PETRI_TRANSITIONS=330} [2022-04-18 16:31:58,941 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -69 predicate places. [2022-04-18 16:31:58,941 INFO L478 AbstractCegarLoop]: Abstraction has has 338 places, 330 transitions, 807 flow [2022-04-18 16:31:58,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:31:58,941 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:58,941 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] [2022-04-18 16:31:58,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 16:31:58,941 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:58,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1183719220, now seen corresponding path program 1 times [2022-04-18 16:31:58,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:58,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431049569] [2022-04-18 16:31:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:59,010 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 16:31:59,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:59,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431049569] [2022-04-18 16:31:59,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431049569] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:59,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:59,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:59,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584248897] [2022-04-18 16:31:59,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:59,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:59,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:59,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:59,013 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 435 [2022-04-18 16:31:59,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 330 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 394.1666666666667) internal successors, (2365), 6 states have internal predecessors, (2365), 0 states have call successors, (0), 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 16:31:59,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:59,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 435 [2022-04-18 16:31:59,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:59,251 INFO L129 PetriNetUnfolder]: 88/1700 cut-off events. [2022-04-18 16:31:59,251 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 16:31:59,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2252 conditions, 1700 events. 88/1700 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 12910 event pairs, 8 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 2164. Up to 108 conditions per place. [2022-04-18 16:31:59,275 INFO L132 encePairwiseOnDemand]: 430/435 looper letters, 28 selfloop transitions, 4 changer transitions 0/329 dead transitions. [2022-04-18 16:31:59,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 329 transitions, 869 flow [2022-04-18 16:31:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2373 transitions. [2022-04-18 16:31:59,278 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9091954022988505 [2022-04-18 16:31:59,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2373 transitions. [2022-04-18 16:31:59,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2373 transitions. [2022-04-18 16:31:59,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:59,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2373 transitions. [2022-04-18 16:31:59,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 0 states have call successors, (0), 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 16:31:59,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:59,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:31:59,284 INFO L186 Difference]: Start difference. First operand has 338 places, 330 transitions, 807 flow. Second operand 6 states and 2373 transitions. [2022-04-18 16:31:59,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 329 transitions, 869 flow [2022-04-18 16:31:59,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 329 transitions, 865 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:59,290 INFO L242 Difference]: Finished difference. Result has 340 places, 329 transitions, 809 flow [2022-04-18 16:31:59,290 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=809, PETRI_PLACES=340, PETRI_TRANSITIONS=329} [2022-04-18 16:31:59,292 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -67 predicate places. [2022-04-18 16:31:59,292 INFO L478 AbstractCegarLoop]: Abstraction has has 340 places, 329 transitions, 809 flow [2022-04-18 16:31:59,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 394.1666666666667) internal successors, (2365), 6 states have internal predecessors, (2365), 0 states have call successors, (0), 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 16:31:59,293 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:59,293 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] [2022-04-18 16:31:59,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-18 16:31:59,293 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting thread4Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash -187809518, now seen corresponding path program 1 times [2022-04-18 16:31:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:59,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664796589] [2022-04-18 16:31:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:59,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:59,317 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 16:31:59,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664796589] [2022-04-18 16:31:59,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664796589] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:59,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:59,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:59,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79278538] [2022-04-18 16:31:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:59,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:59,319 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 435 [2022-04-18 16:31:59,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 329 transitions, 809 flow. Second operand has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 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 16:31:59,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:59,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 435 [2022-04-18 16:31:59,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:59,616 INFO L129 PetriNetUnfolder]: 280/2298 cut-off events. [2022-04-18 16:31:59,616 INFO L130 PetriNetUnfolder]: For 256/266 co-relation queries the response was YES. [2022-04-18 16:31:59,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3329 conditions, 2298 events. 280/2298 cut-off events. For 256/266 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 19877 event pairs, 168 based on Foata normal form. 0/2184 useless extension candidates. Maximal degree in co-relation 3041. Up to 455 conditions per place. [2022-04-18 16:31:59,650 INFO L132 encePairwiseOnDemand]: 432/435 looper letters, 41 selfloop transitions, 2 changer transitions 0/331 dead transitions. [2022-04-18 16:31:59,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 331 transitions, 902 flow [2022-04-18 16:31:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1153 transitions. [2022-04-18 16:31:59,652 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8835249042145594 [2022-04-18 16:31:59,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1153 transitions. [2022-04-18 16:31:59,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1153 transitions. [2022-04-18 16:31:59,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:59,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1153 transitions. [2022-04-18 16:31:59,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 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 16:31:59,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:59,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 435.0) internal successors, (1740), 4 states have internal predecessors, (1740), 0 states have call successors, (0), 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 16:31:59,655 INFO L186 Difference]: Start difference. First operand has 340 places, 329 transitions, 809 flow. Second operand 3 states and 1153 transitions. [2022-04-18 16:31:59,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 331 transitions, 902 flow [2022-04-18 16:31:59,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 331 transitions, 895 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:59,661 INFO L242 Difference]: Finished difference. Result has 337 places, 328 transitions, 804 flow [2022-04-18 16:31:59,661 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=337, PETRI_TRANSITIONS=328} [2022-04-18 16:31:59,662 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -70 predicate places. [2022-04-18 16:31:59,662 INFO L478 AbstractCegarLoop]: Abstraction has has 337 places, 328 transitions, 804 flow [2022-04-18 16:31:59,662 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 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 16:31:59,662 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:59,662 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] [2022-04-18 16:31:59,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-18 16:31:59,662 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 131 more)] === [2022-04-18 16:31:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash -417256482, now seen corresponding path program 1 times [2022-04-18 16:31:59,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:59,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618612732] [2022-04-18 16:31:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:59,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:59,757 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 16:31:59,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:59,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618612732] [2022-04-18 16:31:59,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618612732] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:59,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:59,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:59,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871182635] [2022-04-18 16:31:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:59,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:59,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:59,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:59,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:59,760 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 435 [2022-04-18 16:31:59,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 328 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 395.1666666666667) internal successors, (2371), 6 states have internal predecessors, (2371), 0 states have call successors, (0), 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 16:31:59,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:59,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 435 [2022-04-18 16:31:59,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:59,999 INFO L129 PetriNetUnfolder]: 88/1693 cut-off events. [2022-04-18 16:31:59,999 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-04-18 16:32:00,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2237 conditions, 1693 events. 88/1693 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 12859 event pairs, 8 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 2165. Up to 108 conditions per place. [2022-04-18 16:32:00,026 INFO L132 encePairwiseOnDemand]: 430/435 looper letters, 0 selfloop transitions, 0 changer transitions 327/327 dead transitions. [2022-04-18 16:32:00,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 327 transitions, 864 flow [2022-04-18 16:32:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2372 transitions. [2022-04-18 16:32:00,028 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9088122605363985 [2022-04-18 16:32:00,028 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2372 transitions. [2022-04-18 16:32:00,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2372 transitions. [2022-04-18 16:32:00,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:00,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2372 transitions. [2022-04-18 16:32:00,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 395.3333333333333) internal successors, (2372), 6 states have internal predecessors, (2372), 0 states have call successors, (0), 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 16:32:00,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:32:00,033 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 435.0) internal successors, (3045), 7 states have internal predecessors, (3045), 0 states have call successors, (0), 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 16:32:00,033 INFO L186 Difference]: Start difference. First operand has 337 places, 328 transitions, 804 flow. Second operand 6 states and 2372 transitions. [2022-04-18 16:32:00,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 327 transitions, 864 flow [2022-04-18 16:32:00,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 327 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:00,036 INFO L242 Difference]: Finished difference. Result has 339 places, 0 transitions, 0 flow [2022-04-18 16:32:00,037 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=435, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=339, PETRI_TRANSITIONS=0} [2022-04-18 16:32:00,037 INFO L335 CegarLoopForPetriNet]: 407 programPoint places, -68 predicate places. [2022-04-18 16:32:00,037 INFO L478 AbstractCegarLoop]: Abstraction has has 339 places, 0 transitions, 0 flow [2022-04-18 16:32:00,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.1666666666667) internal successors, (2371), 6 states have internal predecessors, (2371), 0 states have call successors, (0), 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 16:32:00,039 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (134 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (133 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (132 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (131 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (130 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (129 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (128 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (127 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (126 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (125 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (124 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (123 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (122 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (121 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (120 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (119 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (118 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (117 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (116 of 135 remaining) [2022-04-18 16:32:00,040 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (115 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (114 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (113 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (112 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (111 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (110 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (109 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (108 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (107 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (106 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (105 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (104 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (103 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (102 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (101 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (100 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (99 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (98 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (97 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (96 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (95 of 135 remaining) [2022-04-18 16:32:00,041 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (94 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONDATA_RACE (93 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (92 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (91 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (90 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (89 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (88 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (87 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (86 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (85 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (84 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (83 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (82 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (81 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (80 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (79 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (78 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (77 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (76 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (75 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (74 of 135 remaining) [2022-04-18 16:32:00,042 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (71 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (70 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (69 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (68 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (67 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (66 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (65 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (64 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (63 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (62 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (61 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (60 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (59 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err11ASSERT_VIOLATIONDATA_RACE (58 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err12ASSERT_VIOLATIONDATA_RACE (57 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err13ASSERT_VIOLATIONDATA_RACE (56 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 135 remaining) [2022-04-18 16:32:00,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (46 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (45 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (44 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (43 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (42 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (41 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (40 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (39 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (38 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 135 remaining) [2022-04-18 16:32:00,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (34 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (33 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (32 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (31 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (30 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (29 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (28 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (27 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (26 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (25 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (24 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (23 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (22 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (21 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (20 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (19 of 135 remaining) [2022-04-18 16:32:00,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (18 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (17 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (16 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (15 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONDATA_RACE (14 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (13 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (12 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (11 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (10 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (9 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (8 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (7 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (6 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (5 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (4 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (3 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err11ASSERT_VIOLATIONDATA_RACE (2 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err12ASSERT_VIOLATIONDATA_RACE (1 of 135 remaining) [2022-04-18 16:32:00,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err13ASSERT_VIOLATIONDATA_RACE (0 of 135 remaining) [2022-04-18 16:32:00,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-18 16:32:00,049 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:00,053 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:32:00,053 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:32:00,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:32:00 BasicIcfg [2022-04-18 16:32:00,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:32:00,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:32:00,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:32:00,056 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:32:00,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:44" (3/4) ... [2022-04-18 16:32:00,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:32:00,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:32:00,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:32:00,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:32:00,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-04-18 16:32:00,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-04-18 16:32:00,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:32:00,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:32:00,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:32:00,111 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:32:00,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:32:00,112 INFO L158 Benchmark]: Toolchain (without parser) took 16711.07ms. Allocated memory was 90.2MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 54.5MB in the beginning and 776.3MB in the end (delta: -721.8MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-04-18 16:32:00,112 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:32:00,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.51ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 63.6MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:32:00,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.17ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:00,113 INFO L158 Benchmark]: Boogie Preprocessor took 40.72ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:00,115 INFO L158 Benchmark]: RCFGBuilder took 579.34ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 83.9MB in the end (delta: -24.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:00,118 INFO L158 Benchmark]: TraceAbstraction took 15782.48ms. Allocated memory was 109.1MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 83.3MB in the beginning and 780.5MB in the end (delta: -697.1MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-04-18 16:32:00,119 INFO L158 Benchmark]: Witness Printer took 55.78ms. Allocated memory is still 2.0GB. Free memory was 780.5MB in the beginning and 776.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:00,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.51ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 63.6MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.17ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.72ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.34ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 83.9MB in the end (delta: -24.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15782.48ms. Allocated memory was 109.1MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 83.3MB in the beginning and 780.5MB in the end (delta: -697.1MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 55.78ms. Allocated memory is still 2.0GB. Free memory was 780.5MB in the beginning and 776.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: 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: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: 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: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: 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: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: 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: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: 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: 74]: 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: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 658 locations, 135 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: 15.6s, OverallIterations: 31, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 936 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 187 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1564 IncrementalHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 187 mSolverCounterUnsat, 927 mSDtfsCounter, 1564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=838occurred in iteration=9, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2803 NumberOfCodeBlocks, 2803 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2772 ConstructedInterpolants, 0 QuantifiedInterpolants, 3150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 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 75 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:32:00,152 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